What is a good all around powder for several 30 cal rifles? I have a 30-30, .308, 30-06, 300 wheatherby mag, and plan on casting a lyman #311291, 170 grain boolit, as well as jacketed store bought projectiles. I would like to use the same powder in each rifle. Later on I will experiment and get powders for each rifle that they like best. But for now I would like to just have one powder. Anybody got any suggestions?