Well my father died and he left me his rifles of which are a 300 icl, 7mm rem mag, 6mm rem, and 30-30 win. Now I have some of his reloading gear but I do not have any of his reloading data other than what he has on the boxes of shells. The 6mm he has a • 100gr sierra using 34.5gr of imr 4350 The 7 mag he has 3 different loads • 175gr boat tail sierra using 76gr of h870? • 160gr barnes x using 64.5gr of h4831 • 160gr speer mag tip using 53gr of 4060? Finally the 300 ICL Grizzly • 165gr Barnes X using 78gr of imr4350 • 165gr nosler ballistic green tip using 84gr of h4831? I hear that the 300 icl is somewhere ballisticly between the 300 weatherby and 300 ultra mag. According to Wikipedia the 300 only has a case capacity of 82.5 grains, is that 84 grain charge a good idea being I am having to relearn how to reload? gun) Second what’s the max powder capacity of the 7mm rem mag? Does anyone have any loads they could recommend ? Any advice would be greatly appreciated.