300 PRC update

[2aBaC̶a̶]

RL26 is has some weird plateaus for me.
My 250 Atip test went like this. And didn't have pressure signs.
74.0 = 2766
74.5 = 2765
75.0 = 2765
75.5 = 2796
76.0 = 2795

My 208 ELD is stupid flat and never found pressure.
76.0 = 3005
76.2 = 2981
76.4 = 3003
76.6 = 2992
76.8 = 3005
77.0 = 3008
77.2 = 3003
77.4 = 3020
77.6 = 3026
77.8 = 3016

225 ELD I can feel the bolt lift change at about 2925fps and popped a primer about 2975.
Avg of 5 shots
74.0 = 2882
74.2 = 2901
74.4 = 2905
74.6 = 2909
74.8 = 2924
75.0 = 2925

 

[Defender3]

RL26 is has some weird plateaus for me.
My 250 Atip test went like this. And didn't have pressure signs.
74.0 = 2766
74.5 = 2765
75.0 = 2765
75.5 = 2796
76.0 = 2795

My 208 ELD is stupid flat and never found pressure.
76.0 = 3005
76.2 = 2981
76.4 = 3003
76.6 = 2992
76.8 = 3005
77.0 = 3008
77.2 = 3003
77.4 = 3020
77.6 = 3026
77.8 = 3016

225 ELD I can feel the bolt lift change at about 2925fps and popped a primer about 2975.
Avg of 5 shots
74.0 = 2882
74.2 = 2901
74.4 = 2905
74.6 = 1909
74.8 = 2924
75.0 = 2925

Looks like a node with the 225s at 74.4. Any idea what happened at 74.6?

 

[2aBaC̶a̶]

Looks like a node with the 225s at 74.4. Any idea what happened at 74.6?

Typo, should be 2909

 

[Ledzep]

Looks like a node with the 225s at 74.4. Any idea what happened at 74.6?

Velocity nodes don't exist in the testing I've done. If you shoot enough rounds per charge weight to have statistically relevant data, the average MV just walks up with powder charge. Some powders it looks basically linear, some have a little bit of arc to them (obviously cartridge/bullet dependent which ones do which).

Accuracy nodes I have also not seen to exist. Most of what people see, especially with 3-shot and 5-shot groups is what I would call "white noise", which looks sinusoidal like there are multiple high and low data points that occur over the span. You're at the mercy of random distribution on small sample size tests and don't know how wide the error margins are. Tests like the Satterlee method don't pan out over large sample sizes. If you repeat it 20-30 times it will give you different results.

 

[JB.IC]

Velocity nodes don't exist in the testing I've done. If you shoot enough rounds per charge weight to have statistically relevant data, the average MV just walks up with powder charge. Some powders it looks basically linear, some have a little bit of arc to them (obviously cartridge/bullet dependent which ones do which).

Accuracy nodes I have also not seen to exist. Most of what people see, especially with 3-shot and 5-shot groups is what I would call "white noise", which looks sinusoidal like there are multiple high and low data points that occur over the span. You're at the mercy of random distribution on small sample size tests and don't know how wide the error margins are. Tests like the Satterlee method don't pan out over large sample sizes. If you repeat it 20-30 times it will give you different results.

I’ve tried to explain this to my friends and others I’ve met and literally no one believes me.

I’ve did testing with thousands of rounds and I have found that velocity nodes aren’t exactly true. I say aren’t exactly true because some times you see where the linear slope doesn’t follow 100% perfect. You might see 95% at some points but it’s hardly enough to call it a node

I agree with you that once you shoot a statistically valid sample size you will see how the noise can be confused as nodes.

I challenge anyone that disagrees to go ahead and shoot 20 round strings at each powder charge increment you choose. You’ll see the noise and the slope. You’ll also see those single digit SDs disappear before your eyes lol

 

[Ledzep]

Single digit SD's are debatable. It's right on the edge with some powder/cartridge combos. You're liable to have the chrono tell you anywhere from 7 to 12 depending on the particular sample of good combo (20-30 shots). My caveat on that subject is the resolution of chronographs. I don't know what the true level of precision is, so what it's spitting out as a SD may/may not be exactly correct.

 

[JB.IC]

Single digit SD's are debatable. It's right on the edge with some powder/cartridge combos. You're liable to have the chrono tell you anywhere from 7 to 12 depending on the particular sample of good combo (20-30 shots). My caveat on that subject is the resolution of chronographs. I don't know what the true level of precision is, so what it's spitting out as a SD may/may not be exactly correct.

I get what you’re saying. I noticed my magnetospeed would give me better SDs than my Labradar. For awhile I’d run them concurrently and then got tired of always setting everything up. I have the magnetospeed mount that keeps it off the barrel. Sometimes I go full nerd and it’s annoying

 

[Slawson]

Here you have special news from Me:

New Lapua Brass Cartridge Cases for 2021

Lapua, world-renowned for producing the finest cartridge cases and ammunition products, is happy to announce the addition of 6.5 PRC, .284 Winchester, .300 Winchester Magnum, and .300…

www.lapua.com

 

[bunny too]

Here you have special news from Me:

New Lapua Brass Cartridge Cases for 2021

Lapua, world-renowned for producing the finest cartridge cases and ammunition products, is happy to announce the addition of 6.5 PRC, .284 Winchester, .300 Winchester Magnum, and .300…

www.lapua.com

Very cool!

 

[Ledzep]

I'm curious to try the Lapua stuff. I have tested 6.5 Creedmoor Hornady vs. Lapua and the only performance difference I saw was that the Lapua stuff held up to 70-80ksi loads better. ES/SD numbers, accuracy, etc... was indistinguishable on 20-35 shot samples. I question the value in it because all of my testing has shown that the more you push over roughly 55ksi, the worse & more erratic dispersion gets. Don't get me wrong, there are a majority of tight shooting rounds in there, but the fliers get worse and worse the higher powder charge goes. Backing down a couple grains keeps all, or nearly all of the rounds in the tight little wad. YMMV

 

[Defender3]

I'm curious to try the Lapua stuff. I have tested 6.5 Creedmoor Hornady vs. Lapua and the only performance difference I saw was that the Lapua stuff held up to 70-80ksi loads better. ES/SD numbers, accuracy, etc... was indistinguishable on 20-35 shot samples. I question the value in it because all of my testing has shown that the more you push over roughly 55ksi, the worse & more erratic dispersion gets. Don't get me wrong, there are a majority of tight shooting rounds in there, but the fliers get worse and worse the higher powder charge goes. Backing down a couple grains keeps all, or nearly all of the rounds in the tight little wad. YMMV

I think the value is Lapua's consistency and ability to be reloaded many more times than other offerings.

 

[JB.IC]

Here you have special news from Me:

New Lapua Brass Cartridge Cases for 2021

Lapua, world-renowned for producing the finest cartridge cases and ammunition products, is happy to announce the addition of 6.5 PRC, .284 Winchester, .300 Winchester Magnum, and .300…

www.lapua.com

so 2023 we may actually have quantities where it’s in stock lol

 

[Ledzep]

I think the value is Lapua's consistency and ability to be reloaded many more times than other offerings.

*At >65,000psi.

IME there's no problem with Hornady getting upwards of 15 loadings in a case if you treat it right. I've used many different brands, and was a staunch Lapua fan for years but in the last couple years I've drifted to Hornady for most everything. Frankly I'm not so sure, other than neck tension, that the case matters as much as most give them credit for MV spreads or accuracy. In my specific testing with large sample sizes, and my general anecdotal experiences, I haven't really seen a performance benefit one way or the other between Hornady, Rem, Lapua, etc. if you stay within book loads. I've pushed both Remington and Hornady cases over 20 firings with proper die setup and sane charge weights. Like I said before, the only benefit to the Lapua is you can hot-rod to 70-80ksi and not blow primer pockets. Whether or not a guy wants to run that day in day out in your action is the end-user's prerogative.

I've had bad lots of Lapua cases, and I'm sure there's bad lots out there from Hornady, Remington, Winchester, etc... I don't have data on occurrence rates for any of them so I can't really speak for big scheme consistency. I will say the Lapuas seem hardier, and maybe there's confidence placebo value there, but again, how the numbers shake out it's not the stark "Gold standard" vs. "Junk" that I see played out on internet boards like this. Good chamber/die fit/setup, an apropriate annealing cycle, and sane powder charges will get most any case to perform well and last plenty long enough.

ETA: And then there's lot-to-lot consistency... With all components, however, I always suggest buying a barrel's worth at a time. Every component has the potential to be different enough from one lot to the next, from any manufacturer, to ruin your day.

 

[bunny too]

Sigh... I have been waiting 11 weeks for my Defiance Deviant Tactical receiver to get here, I am having it nitrided and I think that is why it is taking so long. I have my TrigerTech diamond two stage, my MDT ACC, two Bartlein 400 mod 28 inch barrels, S&B PMII 5-45x56, spuhr mount, fat bastard 3, Redding Type S comp dies and 1000 rounds of factory ammo. I even have an Omega-36m to quiet it down. I am waiting on the final assembly before I buy a Nanuk case because I am not sure how long it is going to be. I just cannot wait for the receiver to get here, then it will be another four months at Southern Precision to get it barreled. I am living vicariously through you guys so post some interesting stuff for me to read. Thank you guy for your previous posts, you are keeping me interested.

 

[b2lee]

@bunny too I feel your pain. Waiting in the hardest part....wasn't there a song about that once? I hate to say this...but I'm one of the guys in front of you in line at Southern Precision. I'm having another barrel done as well. I'd let you break in line...but I really need the new barrel.

I do have a question for you....why didn't you get the action from SPR?....they usually have them in stock....and you have to send it to them anyway to get your first barrel done.

My barrel is going to finish right around 29" this time. Interested in seeing my same loads with an extra inch of barrel. Also...skipping the fluting this time. I do have an ATS tuner coming for it as well....should be a fun winter to dial in for some ELR in the spring of '21.

 

[bunny too]

@bunny too I feel your pain. Waiting in the hardest part....wasn't there a song about that once? I hate to say this...but I'm one of the guys in front of you in line at Southern Precision. I'm having another barrel done as well. I'd let you break in line...but I really need the new barrel.

I do have a question for you....why didn't you get the action from SPR?....they usually have them in stock....and you have to send it to them anyway to get your first barrel done.

My barrel is going to finish right around 29" this time. Interested in seeing my same loads with an extra inch of barrel. Also...skipping the fluting this time. I do have an ATS tuner coming for it as well....should be a fun winter to dial in for some ELR in the spring of '21.

I ordered the receiver before I spoke to you and you told me about SPR. You have always given me good advice, also I went with the controlled round feed, I do not know if SPR carries those. Thank again for your help and advice. I was reading one of your posts and you stated you had 1300 rounds through your barrel and thought you may be losing accuracy, was that a 400 mod barrel? I was hoping to get significantly more than that after speaking to Bartlein. My barrel is a straight bull 1.25" diameter, would you flute? Not sure how much weight the receiver can carry. Thank you again.

 

[b2lee]

I have about 1350 rounds through the barrel...NON-400MOD. Last Thursday....after a week of intensive cleaning...I took it up to Thunder Valley Precision and had a second round impact at 2239 yards on a 36" plate. I could not tell if I was hitting the plate at 2333 or not....birds around it took flight....no dirt kick up...no call....several shots later....no call...so I went back down...hit....went to 1760...hit....then back up....no call...so I stopped...no need to waste ammo.

I believe I had more of a cleaning issue than a burned out barrel issue. I've borescoped the barrel....and unlike most that find 57 things wrong with their brand new barrel...I could find very little actual wear on this one. The alligator scaling above the throat is only minor....the lands at the muzzle are still tall and sharp edged. My velocities are still both high and SD's and ES's are about the best they've ever been...most of my accuracy problems went away when I took off the muzzle brake that was blended to match the barrel....it was Cerakoted on...and was very difficult to break free. Once off it had a HUGE carbon booger at the 2 oclock location.....took forever to soak that out. I cleaned carbon...then a layer of copper...then another layer of carbon...then another layer of copper...for a week...heh.

However, we know how this goes....like a light switch...it could turn off on the very next round. I've never babied my rifle. It is a tool to do work. I've posted my loads...so you know I'm been pushing it hard....some say way too hard.....so if my barrel is doing this well now....yours may last a lot longer if you shoot the lower speed node and clean it better than I did at first.

I need to shoot better this coming year....I need to climb about 130 more slots on the rankings to be reasonably sure of getting an invite for King of 2 Miles...so I better get to cracking.

No....I would not flute...and the receiver can carry a lot of weight.

 

[bunny too]

I have about 1350 rounds through the barrel...NON-400MOD. Last Thursday....after a week of intensive cleaning...I took it up to Thunder Valley Precision and had a second round impact at 2239 yards on a 36" plate. I could not tell if I was hitting the plate at 2333 or not....birds around it took flight....no dirt kick up...no call....several shots later....no call...so I went back down...hit....went to 1760...hit....then back up....no call...so I stopped...no need to waste ammo.

I believe I had more of a cleaning issue than a burned out barrel issue. I've borescoped the barrel....and unlike most that find 57 things wrong with their brand new barrel...I could find very little actual wear on this one. The alligator scaling above the throat is only minor....the lands at the muzzle are still tall and sharp edged. My velocities are still both high and SD's and ES's are about the best they've ever been...most of my accuracy problems went away when I took off the muzzle brake that was blended to match the barrel....it was Cerakoted on...and was very difficult to break free. Once off it had a HUGE carbon booger at the 2 oclock location.....took forever to soak that out. I cleaned carbon...then a layer of copper...then another layer of carbon...then another layer of copper...for a week...heh.

However, we know how this goes....like a light switch...it could turn off on the very next round. I've never babied my rifle. It is a tool to do work. I've posted my loads...so you know I'm been pushing it hard....some say way too hard.....so if my barrel is doing this well now....yours may last a lot longer if you shoot the lower speed node and clean it better than I did at first.

I need to shoot better this coming year....I need to climb about 130 more slots on the rankings to be reasonably sure of getting an invite for King of 2 Miles...so I better get to cracking.

No....I would not flute...and the receiver can carry a lot of weight.

Excellent information b2lee, you are a great resource, thank you for the information. I hope to see you on King of 2 Miles, do you have a Charlie TARAC?
Regards,
David

 

[b2lee]

I will have a Charlie TARAC...but I have other things on my Wish List before I really need that. Currently, I don't have any targets to shoot over 2500yds...and I can dial 2400yds+ and hold the rest on my current setup....which is 20MOA Rail... 20MOA in the Sphur...and a ZCO 5-27. Running my loads a little hotter..it allows me to reach out further with my scope setup.

Today, I took all my pieces and reassembled my 300PRC rifle. Spun the barrel back on, the muzzle brake, the MDT ACC, the TriggerTech Single Stage, the Atlas Bipod...and the ZCO 5-27 that never left the Sphur mount. Inserted a piece of brass...chambered smooth...put a piece of painters tape on the head....would not chamber...I have two tiny indexing marks on the barrel and action...and they line up perfectly. I think I may go to the local range tomorrow and just shoot a few tiny groups...but mostly to measure muzzle velocity in some colder weather.

 

[bunny too]

I will have a Charlie TARAC...but I have other things on my Wish List before I really need that. Currently, I don't have any targets to shoot over 2500yds...and I can dial 2400yds+ and hold the rest on my current setup....which is 20MOA Rail... 20MOA in the Sphur...and a ZCO 5-27. Running my loads a little hotter..it allows me to reach out further with my scope setup.

Today, I took all my pieces and reassembled my 300PRC rifle. Spun the barrel back on, the muzzle brake, the MDT ACC, the TriggerTech Single Stage, the Atlas Bipod...and the ZCO 5-27 that never left the Sphur mount. Inserted a piece of brass...chambered smooth...put a piece of painters tape on the head....would not chamber...I have two tiny indexing marks on the barrel and action...and they line up perfectly. I think I may go to the local range tomorrow and just shoot a few tiny groups...but mostly to measure muzzle velocity in some colder weather.

Sweet!

 

[JB.IC]

It’s weird how the these two have different readings as far as SD and ES considering nothing changes during the cof.

 

[b2lee]

Got my shipping notice today from SPR that my new barrel is on the way...and may be in my hands as early as Thursday....does that mean I have to go to the range soon?....bah...I have to work all weekend. Be interesting to see how close to my current load...the new barrel likes.

 

[jonthomps]

Moon called me and I jumped in the pool today.

Manners EH1 scorched earth
Defiance deviant
Bartlein 1-9, 25” w/ APA brake
APA CIP bottom metal
Triggertech diamond

Only 23rds down the pipe. It REALLY likes the following load:

215 Berger
ADG brass
77.5g H1000

Looking forward to more range time!

 

[b2lee]

I was going to ask why you didn't feed it 230 A-Tips and RL - 26....then I saw it was left handed...and I was like...ok...now I know

Very nice rifle by the way.

 

[jonthomps]

I was going to ask why you didn't feed it 230 A-Tips and RL - 26....then I saw it was left handed...and I was like...ok...now I know

Very nice rifle by the way.

I have some 230 A-tips and RL26, but I'm not a righty so I'll let it sit and stick with the 215's... In all seriousness, I put 4 of the 215 load in a 1" group at 357y so I'm going to play with them first. The 300 PRC seems to produce less recoil than my 300WM; or maybe the recoil impulse is slower. Anyone else notice this?

 

[b2lee]

Maybe a different brake....my old 300WM didn't kick much....my 300PRC with the Lil B kicks less than my unbraked 308....If I could cut down the insanely loud percussion of the Lil'B....my 300PRC would be super pleasant to shoot.

 

[bunny too]

Just got notified that my Defiance Deviant Tactical will be arriving Thursday! Now it is just a four month wait to get it barreled. Still siked.

 

[b2lee]

Just spent a few minutes taking my 300PRC completely apart again. UPS should be here in an hour or so with my new barrel. I'll spin it on and recheck head space. Then....I'll paint it to match and put the MDT ACC and ZCO 5-27 back on it.

My ATS barrel tuner won't be here until tomorrow or Saturday though...and I have to work all weekend. So, it looks like maybe Monday I'll get to the range and start getting the first 100 rounds or so through it to normalize the speed and then start tuning it for best accuracy at distance. Maybe by next weekend I can take it to TVP and check accuracy at 1mile +.

The learning curve for the new cartridge wasn't bad at all on the first barrel...so...it's all gravy from now on.

 

[bunny too]

Just spent a few minutes taking my 300PRC completely apart again. UPS should be here in an hour or so with my new barrel. I'll spin it on and recheck head space. Then....I'll paint it to match and put the MDT ACC and ZCO 5-27 back on it.

My ATS barrel tuner won't be here until tomorrow or Saturday though...and I have to work all weekend. So, it looks like maybe Monday I'll get to the range and start getting the first 100 rounds or so through it to normalize the speed and then start tuning it for best accuracy at distance. Maybe by next weekend I can take it to TVP and check accuracy at 1mile +.

The learning curve for the new cartridge wasn't bad at all on the first barrel...so...it's all gravy from now on.

Good deal, Interestd to hear how the new barrel shoots, is it a 400 MOD? Just got back from the Fly Store with my new receiver, very happy.

 

[b2lee]

Good deal, Interestd to hear how the new barrel shoots, is it a 400 MOD? Just got back from the Fly Store with my new receiver, very happy.

It's the normal steel....not the 400 MOD....I may do the next barrel.....but I want to hear some reviews....In my mind...the harder the steel the longer it will last...but the less...and we are probably talking -0.01% here....but the less accurate it will be. I want to see a bunch of people get great SD's and ES's out of their 400MOD barrels and really see what the barrel life is.

Fly Store?...wow..and I just returned from the Fly Swatter Store....heh

 

[b2lee]

@bunny too Just for you....the UPS man just handed me a package...now time to get to work:

New barrel is 1.521" longer than the old one.....I'll fire it a few times before I paint it

 

[b2lee]

.....and....done....there is like 40mins of daylight left!!!! Nah...I'll wait.

 

[bunny too]

.....and....done....there is like 40mins of daylight left!!!! Nah...I'll wait.

View attachment 7463852

Your rifle looks like a very similar build to what I am doing ('cept the barrel is an inch and a half longer.) Are you able to find a hard case for it? What is it's total length? And while I am at it, what is the contour of you barrel and the hight (or model #) of you spuhr?

 

[b2lee]

Your rifle looks like a very similar build to what I am doing ('cept the barrel is an inch and a half longer.) Are you able to find a hard case for it? What is it's total length? And while I am at it, what is the contour of you barrel and the hight (or model #) of you spuhr?

@bunny too once I return from work tonight..I'll measure everything out. I have a hard SKB case that fit exactly on the shorter barrel....so...guessing it won't fit now unless I angle it in....I'll check that out. I have a soft Savior case that I know will fit. It had atleast another 3 inches to spare in the little muzzle scabbard.

I'll measure the overall length as sitting...length of pull to muzzle brake...eventhough I'll add 1/4" or so with the new ATS Barrel Tuner coming tomorrow. The Spuhr is the...errr... it's a 20MOA for 36mm scope...and cerakoted FDE...and then ofcourse I painted that.

Barrel contour...I'll get back with you on that....Bartlein heavy varmint or whatever number it is. I'll stick a cleaning rod down it and measure the length from bolt face to crown for you as well....should be about 29.5".

Monday, I will make it go boom boom...and the onlooking squirrels and deer will have faces of awe.

 

[bunny too]

@bunny too once I return from work tonight..I'll measure everything out. I have a hard SKB case that fit exactly on the shorter barrel....so...guessing it won't fit now unless I angle it in....I'll check that out. I have a soft Savior case that I know will fit. It had atleast another 3 inches to spare in the little muzzle scabbard.

I'll measure the overall length as sitting...length of pull to muzzle brake...eventhough I'll add 1/4" or so with the new ATS Barrel Tuner coming tomorrow. The Spuhr is the...errr... it's a 20MOA for 36mm scope...and cerakoted FDE...and then ofcourse I painted that.

Barrel contour...I'll get back with you on that....Bartlein heavy varmint or whatever number it is. I'll stick a cleaning rod down it and measure the length from bolt face to crown for you as well....should be about 29.5".

Monday, I will make it go boom boom...and the onlooking squirrels and deer will have faces of awe.

Thank you, the height of the rings (or center of rings) or the product number of the Spuhr would real help, I want to get the scope as low as it will go.
Thank you for your advice and help.
Regards,
David

 

[b6graham]

Thank you, the height of the rings (or center of rings) or the product number of the Spuhr would real help, I want to get the scope as low as it will go.
Thank you for your advice and help.
Regards,
David

1.18" 6mil just barely clears a 1.25" straight with razor gen 2 and aadmount caps

 

[bunny too]

1.18" 6mil just barely clears a 1.25" straight with razor gen 2 and aadmount caps

Thank you, very helpful! I have a S&B PMII 5-45x56 and I have heard the objective bell is a little larger than usual. I may have to take it to the shop to fit it.

 

[bunny too]

1.18" 6mil just barely clears a 1.25" straight with razor gen 2 and aadmount caps

Is that with a 50 or 56 mm objective lense?

 

[7mmShooter]

Most likely being the 4.5-27 Razor, it's 56mm Objective

 

[bunny too]

Most likely being the 4.5-27 Razor, it's 56mm Objective

Thank you good sir!

 

[7mmShooter]

Thank you good sir!

No problem, good luck!

 

[b2lee]

@bunny too ....let me ask you a question.... Why do you want the scope as low as it will go? I used to have my scope and bipod really low....I had neck tension issues and problems staying on my scope from shot to shot...my LOP was all jacked up and I was crawling over the top of my rifle and had my face almost sideways on the cheekpiece to get down low enough.

Since then, I've listened to @lowlight 's suggestions and lessons and getting things up in your workspace and it has done wonders for both my comfort and my hits on target at 1 mile+. I was pretty hard headed and it took me way too long to get out of some old habits...but once I decided to give it a fair try...things worked really well. I can sit behind a scope all day now and not feel a cramp in my neck, have any eyestrain, or have any problems staying on target from shot to shot. To each their own...but I'd atleast try getting your rings up off your barrel a bit more...

Have a great day,

 

[bunny too]

@bunny too ....let me ask you a question.... Why do you want the scope as low as it will go? I used to have my scope and bipod really low....I had neck tension issues and problems staying on my scope from shot to shot...my LOP was all jacked up and I was crawling over the top of my rifle and had my face almost sideways on the cheekpiece to get down low enough.

Since then, I've listened to @lowlight 's suggestions and lessons and getting things up in your workspace and it has done wonders for both my comfort and my hits on target at 1 mile+. I was pretty hard headed and it took me way too long to get out of some old habits...but once I decided to give it a fair try...things worked really well. I can sit behind a scope all day now and not feel a cramp in my neck, have any eyestrain, or have any problems staying on target from shot to shot. To each their own...but I'd atleast try getting your rings up off your barrel a bit more...

Have a great day,

That is an excellent idea, I was just always under the impression that the lowest you could go was better for accuracy due to ....... science and math, ... I guess. However you are right I have a 1.5" mount on my .338LM AXMC and I can shoot behind that all day. I will give it some thought, thank you for the insight, I may go with 1.35" or 1.5" inch, afterall I have an adjustable cheek piece. Thank you for another chunk of valuable advice.

 

[b6graham]

That is an excellent idea, I was just always under the impression that the lowest you could go was better for accuracy due to ....... science and math, ... I guess. However you are right I have a 1.5" mount on my .338LM AXMC and I can shoot behind that all day. I will give it some thought, thank you for the insight, I may go with 1.35" or 1.5" inch, afterall I have an adjustable cheek piece. Thank you for another chunk of valuable advice.

i shoot a 1.18 spuhr adn 1.26 vortex PMR and really cant tell the difference, but there's no reason anymore to get as low as possible. get whats comfortable

that super low thing was from tiny ass hunting stocks and 40mm and smaller objectives and not having an adjustable cheek piece. wasnt all that logn ago that we duck taped foam on a stock

 

[bunny too]

i shoot a 1.18 spuhr adn 1.26 vortex PMR and really cant tell the difference, but there's no reason anymore to get as low as possible. get whats comfortable

that super low thing was from tiny ass hunting stocks and 40mm and smaller objectives and not having an adjustable cheek piece. wasnt all that logn ago that we duck taped foam on a stock

Cool, I thought the reason you wanted a scope low over the barrel had to do with accuracy a long ranges. Something to do with the height over the bore affecting the ability of the scope to track or something similar.

 

[b6graham]

Cool, I thought the reason you wanted a scope low over the barrel had to do with accuracy a long ranges. Something to do with the height over the bore affecting the ability of the scope to track or something similar.

nah you're good

 

[JB.IC]

My 22 inch with tbac slings em at 2910 without pressure with RL26. 215s, ADG brass and cci250s.

anyone else with a 22” have any info to share?

I’m thinking about building a 22” barrel suppressed shooting the 205 elite hunters or 212 ELD-X. I’m already going to take a shot in the dark and know I need RL26. But any one else have some speeds to report in this setup.

Is RL26 burnt out before getting to the end of the muzzle?

I have some H1000 and n565 but no RL26

it’s either this or I’m building a 7 SAUM.

 

[b2lee]

anyone else with a 22” have any info to share?

I’m thinking about building a 22” barrel suppressed shooting the 205 elite hunters or 212 ELD-X. I’m already going to take a shot in the dark and know I need RL26. But any one else have some speeds to report in this setup.

Is RL26 burnt out before getting to the end of the muzzle?

I have some H1000 and n565 but no RL26

it’s either this or I’m building a 7 SAUM.

If you already have H1000 and N565...I wouldn't go paying a high price or worrying about RL -26....I use RL-26 and N565 interchangeably...almost the exact same loads.

If you've never played with Gordon's Reloading Tools....download it and play around with it. It is fairly accurate on percentage of powder burn at what length barrel. I was shooting a 28" and just snapped on a 29.5" that should get a first round down the barrel Monday. I've never liked the idea of H1000 in the 300PRC...but it is because I shoot the longer barrels. In the 22" barrel it may just be right for you.

I assume this is an almost exclusive hunting rig. I've seen a ton of 212 ELD-X's in stores around here in N. KY....You get that bullet moving 2800+ fps with its sectional density....the elk or whatever you hit...is going down pretty hard. I shoot a 230 A-Tip at about 3000fps in the summer..but that is for ELR steel and some 1 mile paper...but at 2000 yards....it is still hitting very hard....but that's out of a much longer barrel and hot loads.

I'm a huge cheerleader for the 300PRC....so take my bias with a grain of salt....but my results speak for themselves.

 

[JB.IC]

If you already have H1000 and N565...I wouldn't go paying a high price or worrying about RL -26....I use RL-26 and N565 interchangeably...almost the exact same loads.

If you've never played with Gordon's Reloading Tools....download it and play around with it. It is fairly accurate on percentage of powder burn at what length barrel. I was shooting a 28" and just snapped on a 29.5" that should get a first round down the barrel Monday. I've never liked the idea of H1000 in the 300PRC...but it is because I shoot the longer barrels. In the 22" barrel it may just be right for you.

I assume this is an almost exclusive hunting rig. I've seen a ton of 212 ELD-X's in stores around here in N. KY....You get that bullet moving 2800+ fps with its sectional density....the elk or whatever you hit...is going down pretty hard. I shoot a 230 A-Tip at about 3000fps in the summer..but that is for ELR steel and some 1 mile paper...but at 2000 yards....it is still hitting very hard....but that's out of a much longer barrel and hot loads.

I'm a huge cheerleader for the 300PRC....so take my bias with a grain of salt....but my results speak for themselves.

I have quick loads and could check for myself but I’m being lazy lol. Not only that if there’s a number of guys shooting 22” 300PRC then I trust their experiences more so than software and also I’m curious what they’re using so I can brain storm ideas.

that being said this would be a hunting barrel. Probably a light Palma contour aiming for 3ish lbs.

 

[b2lee]

I have quick loads and could check for myself but I’m being lazy lol. Not only that if there’s a number of guys shooting 22” 300PRC then I trust their experiences more so than software and also I’m curious what they’re using so I can brain storm ideas.

that being said this would be a hunting barrel. Probably a light Palma contour aiming for 3ish lbs.

Wow... 3ish pounds....so a 22" carbon barrel and a carbon stock....what action?....Ti action? My barrel would weigh more than your entire rig..heh.