From a 3 in. barreled all steel Smith, it was pushing 1,180 fps.(they claim 1,320 from a 7.5" barrel). After six of them, I began to form a blood blister on the inside of my thumb. It claims that it's not to be used in Scandium or Titanium pistols. With how much recoil it produces, that's a good warning. On the seventh round the blood blister was promptly splattered loose. This is one powerful load. I spent a half hour rounding and smoothing the grips in the area that was biting me.
I disassembled the round and weighed the charge, it was somewhere in the ballpark of 20.5 grains. The powder was little tiny spherical granules, the smallest I've ever seen.
I'm gonna need a dang set of shooting gloves to sight them in. Extraction was great, and I believe the load is around max 44 mag pressure limits.