If you google bullet twist rate calculator you’ll find just that. Enter your info and there you go. You’ll need the bullet total length, it’s bc, whether it’s tipped or not, FPS your anticipate to drive it at
I’ve experienced it twice now that if you only have marginal stability your bullet will be ok up to 100 yds but by 200 yds your groups open to 4-6” indicating that your rifle doesn’t spin them fast enough.
One is a 22-250 and 55 gr bullets. Not sure of the twist but can’t use the 55’s but 52’s work fine. Both are non tipped bullets
