That is with a .22 revolver. Had fairly similar results with an HK 9mm, Sig 40SW and 1911 (not quite as tight, but bigger holes

)
There was a huge difference in kick between the .22 and the others, but I didn't notice that much difference between the 9, 40 and 45. I think I kinda like the 40SW, although it was a Sig 229 which is compact. I like the full sized grip instead.
Off to the dark side...