bluejay75
Member
- Joined
- Mar 31, 2021
- Messages
- 426
A 1:1 ratio of COWW:SOWW is a popular alloy that’s almost guaranteed to expand at 1300 FPS or faster. Just something to consider. I use that alloy as a PB in 308 and 44 magnum at 1700-1800 FPS with no issues and great accuracy.