Lapua SRP Virgin BrassThese Garmin's are legit.
What's the load details? Assuming it's either the 153.5 or 156?
40.5gr H4350
156gr Berger EOL
.80 thou jump
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Lapua SRP Virgin BrassThese Garmin's are legit.
What's the load details? Assuming it's either the 153.5 or 156?
You mean .080?Lapua SRP Virgin Brass
40.5gr H4350
156gr Berger EOL
.80 thou jump
Curious what's you COAL or CBTO on th 156's?Lapua SRP Virgin Brass
40.5gr H4350
156gr Berger EOL
.80 thou jump
CBTO is 2.185” and I use the new version non-binder plate MDT magazinesCurious what's you COAL or CBTO on th 156's?
I just rolled up a batch of 153.5's that I'm having to jump 110 thou to mag feed with binders.
This was 12 round group out of it a the range yesterdayCBTO is 2.185” and I use the new version non-binder plate MDT magazines
Appreciate it, looks like it shoots great!CBTO is 2.185” and I use the new version non-binder plate MDT magazines
Looks like we're almost exactly the same to the lands.This was 12 round group out of it a the range yesterday
View attachment 8340833
Did this test again today...There are more available now as I know Impact Data Books has Garmins in stock now but the Magnetospeed works just fine. Been using them for many years. Used to attach to the barrel but now attach via arca mount. You just need to use the rod to make sure your bullet has clearance and then look down the bore to make sure you can't see the bayonet.
That 40.2 Data looks off. Typo on the last two velocity inputs?Did this test again today...
Berger 140 ht, Lapua SRP, CCI450, H4350 … Five rounds each weight of 39.6-39.8-40.0-40.2-40.4-40.6-40.8
COAL 2.8” …CBTO 2.093+-
Three lowest SD's
Are these good considered a good SD?......@ 39.8 SD was 5.4 (2626-2630-2632-2622-2619)
@ 40.2 SD was 5.54 (2671-2676-2681-2186-2191)
@ 40.6 SD was 6.08 (2708-2718-2708-2721-2710)
Yeah they are considered good, but with 5 shots it doesn't mean a lot. If you did that with 20 or 30 shots and got that same SD it would be very good.Did this test again today...
Berger 140 ht, Lapua SRP, CCI450, H4350 … Five rounds each weight of 39.6-39.8-40.0-40.2-40.4-40.6-40.8
COAL 2.8” …CBTO 2.093+-
Three lowest SD's
Are these good considered a good SD?......@ 39.8 SD was 5.4 (2626-2630-2632-2622-2619)
@ 40.2 SD was 5.54 (2671-2676-2681-2186-2191)
@ 40.6 SD was 6.08 (2708-2718-2708-2721-2710)
An impressive SD for 10 rounds. What are you using to measure your powder? What primer are you us
No they are what the Magneto speed captured. BUT...I am newish to reloading and I will say that I am using an auto trickler and i set it to 40.2...sometimes it throws a tad more or a tad less...i.e it might have thrown 40.29 or 40.27 .... I'm trying to be realistic when doing the test....does everyone buy these fancy machines and still baby sit them to the exact grain? That is a sincere question.... If i buy a box of Hornady 140s am I getting an exact grain count or am I getting the same variable?That 40.2 Data looks off. Typo on the last two velocity inputs?
That will be my next step. I was going to load 15 of each of the three but I can do 20 to see if it is a valid charge...Thank you for the help and input...Yeah they are considered good, but with 5 shots it doesn't mean a lot. If you did that with 20 or 30 shots and got that same SD it would be very good.
I don’t do the fancy machine. I bought a nice electronic scale accurate to .02 grain, and I keep a close eye on the weight after I lift the pan off the scale. It should always read a negative weight of the pan, and if it drifts a bit I return the powder to the source and re-zero the scale. Keep an eye out for “wind” from a/c or heater or fans as that will introduce a variable you cannot adjust for. I shut down the a/c when reloading.No they are what the Magneto speed captured. BUT...I am newish to reloading and I will say that I am using an auto trickler and i set it to 40.2...sometimes it throws a tad more or a tad less...i.e it might have thrown 40.29 or 40.27 .... I'm trying to be realistic when doing the test....does everyone buy these fancy machines and still baby sit them to the exact grain? That is a sincere question.... If i buy a box of Hornady 140s am I getting an exact grain count or am I getting the same variable?
No they are what the Magneto speed captured. BUT...I am newish to reloading and I will say that I am using an auto trickler and i set it to 40.2...sometimes it throws a tad more or a tad less...i.e it might have thrown 40.29 or 40.27 .... I'm trying to be realistic when doing the test....does everyone buy these fancy machines and still baby sit them to the exact grain? That is a sincere question.... If i buy a box of Hornady 140s am I getting an exact grain count or am I getting the same variable?
The 40.2 numbers are most definitely wrong.No they are what the Magneto speed captured. BUT...I am newish to reloading and I will say that I am using an auto trickler and i set it to 40.2...sometimes it throws a tad more or a tad less...i.e it might have thrown 40.29 or 40.27 .... I'm trying to be realistic when doing the test....does everyone buy these fancy machines and still baby sit them to the exact grain? That is a sincere question.... If i buy a box of Hornady 140s am I getting an exact grain count or am I getting the same variable?
Thank you for the info. I will look at the data again…additionally I am going to rerun the test And look closer at the throw numbers to test consistency there as well.The 40.2 numbers are most definitely wrong.
Those 5 shots with the velocity you have listed would give a SD of 267.
If the MagnetoSpeed gave you the SD of 5.54, then it read the speeds correctly and either displayed them incorrectly or you misread them.
What rifle/barrel?? Hammer forged like Ruger RPR & Tika's can be -100fps vs a Barlein etc.Went through some of these pages and looked at some results from others. I am not getting the speeds others are getting from h4350. I'm still pretty new to reloading. My barrel is 24" and has around 260rds through it. Staball seems to get good speeds but everything I read, people are saying h4350 hangs right with staball. Do I need to venture above the book max to find a good load in the mid 2700's? Here's my data from today.
View attachment 8352572
Hopefully someone with first hand experience on a Howa will chime in.Howa barreled action from brownells.
How many rds do you have on it
recorded those speeds after 100 rounds of factory ammo.How many rds do you have on it
What distance are you shooting to need more speed?If it's just the make of the barrel then that answers my question pretty well I think. I was hoping to get the h4350 to match the speed of staball. I've already seen the temperature affect the velocity using staball and was hoping to have a more temp stable load. Oh well the staball does shoot good out of this rifle.
Used to be accuracy and predictability were the primary concerns. Now I am not so sure for some.What distance are you shooting to need more speed?
I was shooting 1000Y with my low node 2667fps with a 147 ELD-M.
If you don't need the speed save your barrel and components.
Yes sir,"not sure for some" I call it "magnumnitis" , from trying to make a 45 Magnum out of a 45 Colt , that was some 50 years ago to using a chronograph strictly for bragging rights " and not concerned about hitting anything smaller that a 5 Gal. bucket at 100 Yds , which they will tell their buddies was 2000 Yds. All the while counting on gravity to hit the ground. Who was it that said "Only accurate rifles are interesting"?Used to be accuracy and predictability were the primary concerns. Now I am not so sure for some.
Well said! Wasn’t that old man Hornady? I knew that once, but my memory is very suspect these days.Yes sir,"not sure for some" I call it "magnumnitis" , from trying to make a 45 Magnum out of a 45 Colt , that was some 50 years ago to using a chronograph strictly for bragging rights " and not concerned about hitting anything smaller that a 5 Gal. bucket at 100 Yds , which they will tell their buddies was 2000 Yds. All the while counting on gravity to hit the ground. Who was it that said "Only accurate rifles are interesting"?
Awesome! I have seen a video where his recorded voice is saying exactly that (I think) or else someone else quoted him and I just have a memory of the voice. LoL one or the otherAt first I thought it was P.O. Ackley , but it was Col. Townsend Whelen
What make/model barrel did you settle on? I've scoured for months looking to snag a 7.5t in stock or slightly used. May have to get one spun up talked to Owen at Front Range may go that route.I’m shooting SMK 150s w 42.5gr of RL16 through a 26” 7.5tw barrel at roughly 2815. The shoot lights out! I’ve had them out to over 1700yrs wo a problem. I really think the SMKs are super overlooked!
Sorry, it's 6.5 creedmoor with 140 grain HornadysIs the 42-43 of 555 with 130's or 140's or ??
what velocity are you getting with the 140's at that charge range?I have come across very good results with my AR Creedmoor, 22" Rainer Arms barrel, using N555 from 42 to 43 grains. I have not shot it since 8/22 but plan on getting back to it this year. Prior to N555 I tried RL17 and H4350 but they could not match N555 for group size, SD nor ES. Good luck
I’m running 153 a tips and 153.5 hybrids both at 60k off at 2680 in a 26” proof prefit, 8 tw, with 40.5gr h4350 in alpha SRP brass. Consistent single digit Sd’s
2650 - 2735what velocity are you getting with the 140's at that charge range?
ok thats about what i expected. seen some guys get around 2700 with the 144's and around 2800 with the 130 grain bullets so that falls in line with my hopes2650 - 2735
Magnum. I only run 450’s in all my short action calibersSRP magnum.....or SRP standard ?
Magnum. I only run 450’s in all my short action calibers
Well Men, as of February 3rd, I got back in the 6.5 Creedmoor business. Sold my last, the RPR and guess what. The buyer was a non-payer. Called, sent emails, even was able to talk with his employer, who said his mother also worked for him and he would get to him and get right back to me.Well men, as of about an hour ago, I am officially out of the 6.5 Creedmoor business. Sold my RPR and have re-barreled the MPA with a 6GT barrel. Not sure how I feel about this choice, but it’s been made. Main reason, too much time spent trying to keep two different caliber rifles in ammo. So, everything that is precision is GT. They are both ok with the same loadings, maybe not totally optimized but I don’t shoot Bench Rest of F Class but both do hit steel out to a 1000 yards or more and that is what counts.
What I will say and will say it to my death. The RPR and MPA were the most accurate rifles I have ever owned. The 6.5 Creedmoor was also the most tolerant / easiest to load for round, I have ever come across in my 52 years of reloading and 59 years of shooting centerfire rifles.
Where should I go from here?
I only had 100 bullets and I had lost my previous data.
Barrel is a 24” 1-7.5” twist IBI
OCW test Nosler 140 RDF, H4350, BR-4, Lapua brass.
If you click on the target it will bring you to to photo bucket with better resolution.
View attachment 8365379