I know 42-42.4gr of AR2008 under a 168gr pill is the default for replicating Federal Gold Medal Match 308 - which is supposedly right around the "optimum charge weight", all to do with harmonics...
Type: Posts; User: Pommy
I know 42-42.4gr of AR2008 under a 168gr pill is the default for replicating Federal Gold Medal Match 308 - which is supposedly right around the "optimum charge weight", all to do with harmonics...