heavy bullets in the Fireball

[justme]

Has anyone tried 60 grain and heavier bullets in the .221 ? Any advise much appreciated. I am up to 2600 in 21 inch 1x12 with 64 Winchester and R7. Chrono'ed only so far with no idea how they'll shoot.
Thanks
Mike

 

[LHSmith]

A 12 twist should be good for at least 60 grain.
I tried 60 gr. Partitions in a 14 twist .222, with not-so-good results.....1-3/4" @ 100 yds.

 

[justme]

Thanks, I'll get to the range soon, but can shoot over the screens here at home. I'm curious about the twist/velocity/accuracy deal at 2800 if I can get there. Thought someone on here may have already done it.