I use a .357 mag and shoot .38 loads in my club matches. We shoot at 25 and 50 yards. At 25 yards I use 148 gr DEWC with 3.0 gr of bullseye and it's very accurate. It will not perform at 50 yards. I was told I need a more aerodynamic bullet so I went with the 158 gr. SWC and have tried all kinds of powder and all sorts of powder loads but cant seem to get one that works well. I test them off a bench with my revolver in a rest. I know this is not an easy questions, but has anyone out there found something I don't know about?