I got a used 642-2 last week and have put about 350 rounds through it so far, about 200 wadcutters and various 158s at close to or at +P velocities. The grips are the stock Uncle Mikes that came on it. The gun functions fine, though it appears to require lighter bullets to hit POA.
I've noticed when shooting rapid-fire that unless I really bear down, the gun will rotate upward while firing, causing vertical stringing. This isn't an issue with my K frame and larger revolvers, including with full-power .357 Mag ammo. Do I just need to squeeze the hell out of the gun, or might I need larger grips? I'm 6'1" with average hands for my height.
I've also lost some skin and blood from my thumb knuckle hitting the cylinder release. This doesn't even happen with my M57 and full-power loads. I've got files and I'm not afraid to use them, but is there another fix? Like squeezing the hell out of the gun?