something from IMR3031 to Varget and R15 and anything at all in between. Much slower along with the op rod is liable to finding bent through the port pressure timing. 4064 is actually a fav. In my M14 rifles I utilize it and 4895 and AA2530 as well. I generally retain the R15 for my M40 bolt rifles.
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Quoted: @BBTC_MH Yeah, I emailed Hornady about the velocity threshold for fragmentation they usually claimed they can't reliably give me an answer since HP bullets are not reliably in the way they fragment?
that actually works out to just a little around two FPS faster for each diploma. That is a slightly greater transform level than A few other powders Within this class but it is very manageable.
BUT, for all customers of 2520 be warned. You will get 10% variation on account of TEMPS. Its a ball powder I did the identical issue you happen to be accomplishing, load analyzed in Winter season but with 55gr bullets.
This powder does pretty excellent velocity for significant bullets. 2760 FPS with Berger seventy seven OTM, with no large brass damage is spectacular. That load did have ejector marks on it while, as its a incredibly hot load, a NATO load at the very least.
The old 2520 truly even appeared different, if I try to remember the thread correctly. It was more irregular and inconsistent in visual appeal, extra like an jap european powder.
The GOLDEN RULE of reloading is to often to start for the suggested begin load, and that is concerning -ten% below the most load for many Rifle calibers and up to 15% underneath for specified handgun calibers.
for the 22" 308W bolt gun and 165 gr A-Frames, RL17 worked really well. And would be my decision if I were being to hunt with what I think about my Practice Rifle.
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Accurate 2520 Powder Blend the very best ballistic professionals and the very best high-quality factors to make certain that just about every rifle is healthier serviced with Accurate Powders.
These TBBC bullets usually are not recognised for superb precision anyhow, so that was in no way likely to be a person in their main pluses…