So I headspaced the barrel on my RPR with these "300 Norma Mag Magnum CIP Headspace Gauges" from PTG. Is this unsafe to continue fire forming my brass?
Thanks guys...
Thanks guys...
I can't run the load in either QuickLOAD or GRT as the Warner Flatlines are not included in their bullet databases.
However, load data for the Warner 198gr Flatline is already included in the PDF I posted (Dan Warner made it).
Line number 16 on the first page:
N565 86,3gr 96% fill, 99,38% burn, 3148fps.
So you ordered the barrel from LRI, and installed the barrel using a headspace gauge for a standard 300NM?
I would full stop, order the correct gauge, re-headspace, toss all your previously fired brass into a well marked bucket so you don’t take measurements based off those cases, fire form a new round for all you measurements, continue as normal making sure you properly size all your brass to the new headspace.
I would full stop, order the correct gauge, re-headspace, toss all your previously fired brass into a well marked bucket so you don’t take measurements based off those cases, fire form a new round for all you measurements, continue as normal making sure you properly size all your brass to the new headspace.
That’s a 30 degree improved version I had them get when I ordered mine. 341 neck 235 freebore. If not it’s really close. If this come chambered from LRI.
I don't know that I would go quite this far. Get in touch with LRI and get the low down on your chamber. Your brass has the same length from head to bottom of neck as the unfired brass. For shooting in your own rifle you are probably going to be just fine. Downside is you need the improved die set but if you order another barrel and headspace the same your brass should be good to go... LRI will probably have a recommendation and I bet they tell you the headqpacing is fine.
I spoke to Chad form LRI and he is going to take care of me. I get it. No one is perfect. I am still very impressed with this barrel and company. He seems like a great guy to deal with. Thank you everyone for your advice and input on this situation.
Soooooooo anyone else have 225 eldms vaporize coming out of their norma???? Loaded up a batch of 20 today for some load testing. 26" proof steel prefit on a axmc 1/9 twist. Labradar says average speed was 2950. nothing was hitting the target at 100....Super pissed now so I move to 50 still NOTHING..okay 25 yards and what do you know...it looks like I hit the target with a shotgun with buckshot....I shake my head in disbelief and walk to my target and there are pieces of shiny copper jacket laying everywhere in front of my muzzle. I have seen this happen with the 147s anyone see this happen with the 225s?
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I shot the 225s in the Vitrix ELR match last weekend all the way out to 2,012 yards with no issues. Shot very with 28" 1 in 9 twist LRI barrel going 3040ish FPS.
That sucks bro. I've only shot the factory loads but the velocity was right around 2950. Were you running suppressed? If so I would look inside to see if there are any clues.
On second thought its probably your reloading dies, LOL! Sorry I couldn't resist.
Lol I tried it both suppressed and unsuppressed... Nothing inside the can thank goodness...lol die situation is resolved
150 plus out of a 27” 8.5T Bart. at 2970 with zero complaints beyond 2K Yds. Hate to hear these things as I’ve always been a Hornady fan...
Sorry HD, Have shot well over 500 of same bullet, never an issue other than the pressure issue I had all of a sudden almost a year ago.
Would like to hear what you find when you get it sorted out.
Steve
Sir I saw About this problem by this part of the world, mainly with ELD X , I saw 220 in a 300 RUM that felt shooting like a shotgun, this happened mostly when your VO reaches 3000 FPS, he start feeling something weir And primary he thought his muzzle break was tricking him, so I asked to remove the brake and the group was a single hole, the he told me if I could lend him my Cadex brake and that was the worst situation, the brake is completely destroyed I ll post pictures, then we realize why some hits felt like shotgun ones , mainly the tips are desintegrating because of VO
@Yerman I shoot today 250 s with N565 84.5 grn, those were lights out at 2935 average really impressive, but I think I m on maximun with N565, will slow down 1% to stay in more secure zone, but seems that contact surface is lower than 230 and they go out really fast, I was not convinced to drive them so fast. This is also a drop test, I know you guys talk in inches but I ve done in cm, test is at 100 and 300 in order to match tables from balistic app. Full list is Lapua brass CCI 250 primers, N565 84.5grn, 250 A TIPs DA and weather in pictures, SD was amazing
Attachments
Damn. 225g ELD-M’s are superb out of my 28" 1/9" Bartlein. Average right at 3025 FPS on those. Could perhaps have defective batch... that’s the only reason one would be slinging jackets off of them at your velocity.
What‘s your load data for those?
225 ELDM (obviously
) 84 grains of Retumbo, mag primer, 5x fired norma brass annealed every firing, seated .020 off the lands. I only bought 100 so it very well could be a bad batch.
225 ELDM (obviously
Ha! Same powder charge as my loading too. 2.85" BTO, .010" off.
Would be interesting to see the results if you tried a different batch of them.
I got the other 80 left...I am kind of torn how to load them though. Thinking I might load 10 at like 81 grains maybe 80 then do another at 82 to see if they stabilize. Def not shooting these with my can on again until I can confirm clean holes at 100
Yeah, I hear you there. Might try loading a few at 82g but try jamming them .005" or so. The jacket destruction could be from a "fast-start" (initiation pressure) anomaly. Jamming them will prevent that. Regardless, definitely odd behavior.
Cool. Reply back with the results! I run a ton of 225’s. Accuracy was excellent jammed (fire-forming new brass), touching and now .010" off in my barrel.
Hornady 225 ELD-M
81.0 grains H1000
Federal Large Rifle Magnum
Lapua brass
0.020" off the lands (jump)
2900 fps ES: 14 SD: 5
30" Bartlein 1:9 twist
Very accurate load; shot a 10 shot group at 100 yards you could cover with a nickle to chronograph and obtain MV.
Update Feb 01 - this load/barrel has sped up to 2945 fps after 150 rounds down the tube; still shooting very well
81.0 grains H1000
Federal Large Rifle Magnum
Lapua brass
0.020" off the lands (jump)
2900 fps ES: 14 SD: 5
30" Bartlein 1:9 twist
Very accurate load; shot a 10 shot group at 100 yards you could cover with a nickle to chronograph and obtain MV.
Update Feb 01 - this load/barrel has sped up to 2945 fps after 150 rounds down the tube; still shooting very well
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Have you tried retumbo or rl33? Seems guys can get around 3000 with good accuracy especially with a 30” barrel
Im pushing 230 bergers 3050, single digit sd's with 90.8 of rl33 out of a 27 inch tube. Normal groups are just under .4
This is mind blowing. Finally got in touch with the folks at Capstone to get load data for the 300 NM I just had re chambered. It has an 11 twist 28" barrel with a couple of hundred rounds through it before I had it changed to the NM. They give me a start load of 89.0 gr N570, and a max of 93.7 gr for the 210 gr vld hunter. I started at 88.0 and worked up slowly to 92.7! All primers look fine and no bolt marks on the case heads or heavy bolt lift. 92.7 put all 3 in an area roughly the size of the case head at 123 yards. ES was 4. I wont even mention velocity, as my chrony must be off by a good deal based on what I have recorder with other rifles chambered in different cartridges.
I would like to hear of any luck with the 230 ATips. Been playing with Retumbo and N570. Chasing loads from 84 gr to 86.3. Seeing some promise but no ah ha loads so far?
+ 1... have been using ELD-X Match 225grs, but interested in trying the new A-Tips and would love to know what experience others have and any load data?
I have been doing the same thing I finally settled on 86.3 Retumbo and about .024 setback. Am shooting sub 2” groups at 500yds. Had good luck w N570 also but was dirty and couldn’t get more at the time so went with Retumbo. Getting almost 3050 out of a 30” barrel an no pressure signs so far. I started with new Lapua brass and had poor luck but really improved after brass fireformed!!
Anyone have the hornady or Berger load data with min and max data? Mainly looking for H1k and retumbo.
Trying to see where I'm at. New barrel in AXMC. 84gr of H1k and 215s and see all kinds of pressure. Ejector mark, extractor swipe, hard bolt, creator primer. Barrel was new. Clean before shooting. 2 rounds. Clean. Shot 3 more clean. Only had 5 rounds of this as it was my barrel breakin load so I thought. Quick loaded up 84gr of retumbo after and 100fps slower, and absolutely zero pressure signs. From others in this thread with 215s it seems most are running 85-87gr of H1k without any pressure. Maybe I have a HOT lot. And ive seen a few post also of a 87gr of retumbo load and the 215s. Which may seem more in line as I had zero pressure with the 84 of retumbo. Maybe I need to try another one of my lots of H1k? New Peterson brass. COAL at 3.600. 10 off the lands roughly.
I have another new AXMC Norma barrel here I'll try tomorrow from Mile High and see what that is like. Both are newer profile bought from EO and Mile High last week.
Just looking for some published data to go off of here.
Thanks!
Trying to see where I'm at. New barrel in AXMC. 84gr of H1k and 215s and see all kinds of pressure. Ejector mark, extractor swipe, hard bolt, creator primer. Barrel was new. Clean before shooting. 2 rounds. Clean. Shot 3 more clean. Only had 5 rounds of this as it was my barrel breakin load so I thought. Quick loaded up 84gr of retumbo after and 100fps slower, and absolutely zero pressure signs. From others in this thread with 215s it seems most are running 85-87gr of H1k without any pressure. Maybe I have a HOT lot. And ive seen a few post also of a 87gr of retumbo load and the 215s. Which may seem more in line as I had zero pressure with the 84 of retumbo. Maybe I need to try another one of my lots of H1k? New Peterson brass. COAL at 3.600. 10 off the lands roughly.
I have another new AXMC Norma barrel here I'll try tomorrow from Mile High and see what that is like. Both are newer profile bought from EO and Mile High last week.
Just looking for some published data to go off of here.
Thanks!
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I had a similar experience with my EO 300 Norma barrel. Lots of signs before you’d expect them. I use H1000 for other cartridges, so my current lot isn’t hot. I ended up at 80.5gr H1000 with a 220 scenar. 2800fps is dismal performance for this cartridge, but the sd is 4 and groups are tight. I wonder if there is something up with a batch of these, purchased this one Dec 2018. It has about 150 rounds down it.
Thanks for the info. I'm going to play with it a bit and switch up lots of H1k just to check and also get my other barrel on there first before I worry too much.
It might be worth while to get a box of factory ammo and see how it performs.
Yea I'll go down that road if I see similar issues with this other barrel I'll spin on this afternoon. I did call Berger this am and they gave me this info. Said they arent publishing it, but what they have they can tell me over the phone.
Their Test rifle.. 300 Norma 26" barrel. COAL 3.680
215s H1k
Min 83.0 - 2787fps
Max 87.4 - 2933fps
215s rerumbo
Min 86.5 - 2823
Max 91.3 - 2973
230s H1k
Min 81.0 - 2697fps
Max 85.4 - 2838fps
230s retumbo
Min 84.5 - 2735 fps
Max 89.1 - 2874 fps
Velocities seem low as I can get these numbers with my PRC without issue. So taking that data with a grain of salt also.
Called Hornady and guy said they dont have any data to publish and no plans to. Said to call Hodgen. So I sent them an email requesting data.
I'm not going to get too worked up about it yet as I have a lot of things to test out and different powder lots, barrel, etc. If I have continued pressure issues I'll investigate further. Just wanted to see what others are using and some published data. That picture of the Berger sheet I thought was bad data from what people were saying previously?
Just didnt think I would run into pressure right out of the gate with 84gr of H1k and the 215s. Surprised me, that's all.
Some interesting results today. H1k showed pressure at 82 grains even. In two AXMC barrels. Even switched lots to verify. Switched to retumbo and got way more velocity before seeing any pressure at 87 grains. With 215 bergers. Not sure who is using more then 84gr of H1k and 215s but I would advise against it from the testing I just did in these two barrels.
27 inch AI barrel. New besides today's rounds. Break in with 2. Clean. 3 clean. And then..
Retumbo with 215s
84gr 2924
85gr 2984
86gr 3005
87gr 3047 slight cratering of primer.
H1k. With 215s
3 rounds of 82gr. 2900 average.
20 inch AI barrel..H1k with 215s Issues with this one mainly
82gr 2677 Cratering primer. Ejector and extractor marks.
27 inch AI barrel. New besides today's rounds. Break in with 2. Clean. 3 clean. And then..
Retumbo with 215s
84gr 2924
85gr 2984
86gr 3005
87gr 3047 slight cratering of primer.
H1k. With 215s
3 rounds of 82gr. 2900 average.
20 inch AI barrel..H1k with 215s Issues with this one mainly
82gr 2677 Cratering primer. Ejector and extractor marks.
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Using some new Peterson here.. My loaded ammo is .3410-.3415 so I am using a .339 bushing for 2 thou roughly of neck tension.
If you have enough Retumbo it's going to be tough to beat , unless you can get your hands on some N570.
I have 24 lbs now but it's being shared with the Cheytac. And that eats retumbo like crazy. But seems like I'll be ok for a while. One day if I can find the N570 I'll give it a go. Thanks!
Be careful when using the fired brass again, as it will show pressure sooner than your recent ladder test. (Cases now fully fireformed/ expanded) Also, as you found the AXMC cannot run higher pressure loads as the clearance between firing pin and channel is large. My experience mirrors yours.
No. The 338 bolt and 300 win bolts are just as they came from AI. I have a SFP complete bolt assy for when I grab a short action barrel. Was trying to not go down the road of having to bush anything with getting the complete SFP bolt assy for the SA stuff.
Is this something that AI/Mile High is taking care of on the AXMC for the excessive clearence on the firing pin hole? They bushing them, or sending to LRI? Customer pay? warranty? Havent even opened up my Mag bolt body out of the package yet as the PRC barrel doesnt show up from Tooley until Saturday.
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