What velocity are you guys running your 30 cal. Br and Hunter guns ?
No matter if I Shoot a 30 Br or a 30/47 or the Aardvark or anything in between they all seem to shoot at the same speed 110gr on .925" are 3100 ,118 gr 1" 2950 and 128gr 1.080" shoot at 2850. It dont seem to matter what twist 14-18" twist. These are 7 ojive bullets out of Nemi dies.
It really makes load development easy but it don't seem all those cases should like the same velocity.
Ken Livengood