I have not had the issue with my 327, but I did in my 941. There are some posts on here somewhere concerning the need to polish the cylinder bores a bit to solve the problem on other guns. I have not gotten around to doing anything with my 941, but it's the same issue and I bet it has shown-up in other revolvers as well. I am sure a good cleaning and polishing of the cylinder bores should fix the problem. Does it occur with other types of ammo, or just what you were shooting? I have not fired that particular round.