It worked good in my 3oo win mag with bullets over 200gr. It was not very good with the 180 and 190gr bullets. I shouldn't say that it shot just as accurate but the fps was just to slow. h4350, h4831sc, and r22 was just as accurate but with fps much higher. I dont load max anyway but with retumbo it was just to sloe for me. I think it would be a good powder to try with 208 amax or 210 berger. I use it in my gun that i shoot in comps with, but shoot 190gr to hunt with and I think its just to slow for them.