I think I'm doing something wrong. I went to the range today and shot 200 rounds through a couple of 1911's, no problem. I then shot 50 rounds of .357 through my 3" 686-6, and that gave me a blister on my trigger finger. So, I think maybe my grip is not right. Is the grip on a revolver different than you would grip a 1911 or other semi-auto?