I load 59.9 grains of power behind a 130gr bullet. It comes out of a 26" barrel at 3288 fps on average and has great accuracy. Short Mag what? hehe. It was IMR 4831. I like the speer boatail it has never failed me in preformance or accuracy. Start up around the 58grs of powder and go up and down for accuracy until you find a sweetspot.