On my chrony, i'm getting 1425 fps with a Mk 2 using Aquila hyper vel (1400 with the cci stinger) and I even get 950 fps out of and old RG snubbie that I keep in my vehicle as a BUG. I actually know what its like to get shot (accident) with a 22 lr.

It HURTS BAD AND IT BURNS BAD!! and if you get hit just right (like I did) you will see a gush of blood every heart beat...you will go into shock fast. I ccw a 9mm or sometimes a 380 but if it wasn't so big, the 6 7/8 barrel Mk 2 would go with me a lot of places.