Originally Posted by B23
That's promising to hear. So, if I had no plans to ever shoot anything heavier than a 60grainer's what twist should I use? I guessing 1-12 should be about perfect.
I've tried 60 grain bullets in a .223 (1:14 twist) and a 1:12 twist 22-250. The 60 was getting ragged in the 22-250, and similar results with the .223. Three quarter inch groups were the norm. I think a 1:10 twist would be perfect in the 22-250, but on the otherhand I never really did a lot of development with the 60 grain bullet so there might be a problem. Perhaps a shorter 60 grain bullets is what I needed.
Fifty-five grain Nosler BT's bullets have problems in a 22-250 with a 1:14 twist, but the Vmax shoots just fine due to the S/G factor. But the Nosler shoots fine in a 1:12 twist. The 60 grain partition bullets will shoot OK in a 1:12 twist 22-250, but will be almost unstable in a 1:14. I've been messing around with 60 grain Hornadays, and can say for sure they won't work in a 1:14 twist barrel. But a 1:10 (or even a 1:11) barrel should put you right in there. Savage has offered a 1:9 twist 22-250 barrel in the past, and would think it would handle anything out to 75 grains