I load 15 grains of 2400 w/ 158 grain hard cast and jacketed bullets, CCI 550 (std small pistol primer works also), Starline brass, for my M27-2 revolver. This load is superbly accurate, I've loaded and shot it for many years. In fact this is about the only load my M27 has seen since I bought it new in 1981, and it's seen alot of them.