What would be the absolute heaviest bullet I could use in a 22-250 with a 1:12 twist? Velocity isnt too much of a concern, accuracy is tops. Im wondering if I could get away with some of the heavier 70+grain bullets and still have them be stable.

Thanks

Mudruck

I have used Sierra 63gr in my Win M70. Accuracy was average (+/- 1MOA)

Anything over 63 grain should have a faster twist.

I SHOOT 67 GR PPC BULLETS(BULK) WITH MY ENCORE PISTOL THAT HAS A 1/14 TWIST AND THEY WORK VERY WELL.I GET THE SAME GROUPS AS I DID WITH HORNADY 55 GR A MAX BULLETS JUST LESS VELOCITY

I am building a 22-250 improved,Well its done but havn't shot it.
Has a Lilja barrel.I wanted to shoot a heavy bullet.Dan recomend a 1-12 for up to 63 gr.bullets.
Hope this helps.Top notch barrel makers have twist rate needed on a computer program.

I used many of Speers 70 grain semispitzers in a 1 in 14 twist with good accuracy.