Originally Posted by Kevin Thomas
You ALWAYS choose a twist based on the longest/heaviest bullets you plan on using. The lighter, shorter bullets will take care of themselves. You can spin a bullet faster than what's "needed" without any problem. You won't "overstabilize it" (no such thing), you'll merely have a higher Stability Factor than what's actually required to keep it nose on. Going the other way, with insufficient twist and too low an SG is likewise ALWAYS a problem.
I suppose then, we only need to be concerned about, is what RPM they begin to disintegrate at.
Having absolutely no experience in this area, I'm curious if accuracy ever suffers at the extreme RPMs, assuming they don't disintegrate.
I have one 22-250 with a 1 in 14 twist and another with a 1 in 9 twist. I also have nearly 3000, 22 caliber bullets from many years ago when I had an FFL. They vary in weight from 50 gr to 63 gr. All being either Hornady or Sierra. The 50 gr Hornady SX, I can shoot in my 221 Fireball. I should be able to shoot the remainder in my new Savage LRPV with a 1in 9 twist. I assume the 52 & 53 grain Sierra HP will no blow up on exiting the barrel.
I apologize if this is too far off the path. I'll search for another thread if I am.