Is there a single powder that I can use for the three guns that I reload for? First gun is a 243 using 58gr. and 87gr. Used for varmit and deer, the second is 30-06 using 125gr and 180gr. used primarily for deer and some hogs. The last one is 300 WM using 165gr and 180 gr. it is used for hogs and long range on deer. When I say long range I mean for me which is up to about 400 yards. Thanks