I use 158 gr. SWC and 3.2 gr. Bullseye in my 4, 5, and 6 inch .38 Spl. revolvers. In the 2 inch revolvers I find that I need to increase the Bullseye load to 3.4 gr for the best accuracy. Fixed sight revolvers can have different points of aim. I will test several loads (i.e. 3.0 to 3.6 gr Bullseye) and then file the front sight. I have a couple that I had to build the front sight higher using J.B. Weld, then file down. I have not had a J.B. Weld come loose.