Recoil of even hot 357 loads in a 6 inch GP 100 is not even bothersome. It's a heavy gun. I didn't mention 357 because I have significant hearing loss already and if you've shot full house .357 loads without your ears on, you know how painful that is. Since there are both 2 and 4-legged concerns where I'll be I need to not walk around with hearing protection.
I'm choosing to try to keep both my life and my hearing. I think I like the idea of a J Frame.