Tonk, give it a try. I hit that velocity a grain under max and with zero signs of excessive pressure. Extraction felt like an unfired round. I loaded a couple at 60 grains but only gained something like 13 fps - but, from 55 to 59 grains, I got big jumps. I'm just looking for trajectory that suits my kind of hunting, while carrying a big bore lever gun. I will say that in all of my reloading efforts, my two Marlin big bores are the only rifles that have actually hit or surpassed advertised velocities. Micro groove, perhaps???
