The stock grips are too small on either of them, but easily rectified with a pair of customs. My first S&W was the K22 M17 6" but we were shotgunning a lot of barn pigeons back in those days and we were just finishing off the wounded birds with a handgun a close range. That K frame was too heavy for a .22 for my taste and I didn't need a 6" .22 for what we were doing. That K22 morphed into a M34 4" J frame and it has been here ever since. For a hunting handgun get the longer barrel K22. For a wear it and forget it to use as needed, get the J frame.
I agree about grip size. When I was a young USAF officer I "scrounged" two sets of the Magna grips like the Air Police used on their Combat Masterpieces, one for my K 22 and K 38
