I have a question about twist rates!

[Klem]

I don't think it matters too much, it's not like 1:5 used on 300 blackout, or 1:3 used on 8.6 blackout. The twist has more to do with the projectile you use.

I just received a 12" Faxon 6.5 Grendel barrel with 1:8 twist. I plan to shoot 100-120 grain projectiles. If I wanted to shoot heavier bullets I would look for a 1:7.5 or 1:7 twist barrel. I don't see a reason to do so, however. If I need heavier bullets I'll use 8.6 blackout.

KW

Mate, I wouldn't be so dismissive of RPM. I have seen a suppressor smashed due to a bullet coming apart inside (LeHigh/Blackout). Also seen puffs of smoke prior to the target and then no hole in the target at all. Depending on the velocity, bullet, and twist, RPM does all sorts of things and we don't pay enough attention to - including me.

Never been happy shooting animals with heavy subsonics; it's like shooting them with an accurate handgun, they rarely die immediately (humanely).

Here's a neat summary on Accurate Shooter.
https://www.accurateshooter.com/technica...stability/