That's strange, nosler shows 2970 for RL22, nothing for retumbo. Even so, those heavies don't need much speed to kill, especially put of the 7 mag they're gonna buck the wind and retain energy like crazy, just need to know your dope. Berger has a 190 grain that needs 8.3" or better twist but I think that's probably past the point of diminishing returns for the 7 mag, around 180gr seems like the sweet spot. Probably close to 150-160 for the 08 but Id like to keep my options open and I don't see any downside to an 8.5 twist other than availability
Bookmarks