This question was asked on a different forum and didn't get many replies but has me wondering. Has anyone done much with reloading .30 carbine and using any of the newer powders, particularly 300MP? H110 and 2400 are pretty standard for 30 Carbine but there are other, modern powders that would seem to work well. I shoot 30 Carbine in both the M1 Carbine rifle and in a Taurus revolver. Any thoughts or experiences are greatly appreciated.