I let a friend borrow my magnetospeed. I will try to get velocity of a couple rounds when I get it back. It is a 12.5" mower axle. (ARP customers should understand that). I sighted it in with Hornady 120 grain SST because I have several boxes. I plan on loading some 105 grain Cavity Back Bullets over some AA2200 soon for it.Hey Oklahomabassin, what kind of velocity do you get from. 6.8 pistol with what bullet? Barrel length? I'm a big 6.8 fan, but never played with a short one.