After years of thinking about it, I think I've finally decided to start reloading. I'm looking at loading for several cartridges, and I'm hoping somebody can help me out. I'm looking for one or two powders to get started with that will give good results across the board, if such a thing exists. I'd be loading for .222, .270, 30-06, and .300 WinMag, with primary focus on the .270. I know that each caliber/rifle would probably prefer its own can, but if I can get acceptable results, I'd like to be able to work up loads without buying a lot of different kinds of powder right off the bat.
Is this a possibility, or should I bag that idea and buy "recommended" powder for each caliber?