https://rifleshooter.com/2014/12/308-winchester-7-62x51mm-nato-barrel-length-versus-velocity-28-to-16-5/
25 FPS per inch
Use this as a reference, but it all depends on your Ammo choice and...
Type: Posts; User: 300_BLK
https://rifleshooter.com/2014/12/308-winchester-7-62x51mm-nato-barrel-length-versus-velocity-28-to-16-5/
25 FPS per inch
Use this as a reference, but it all depends on your Ammo choice and...