Thirty years ago I did all my rifle reloading with IMR4895, IMR4350 and H4831--the original mil-surp H4831, as I had a big supply. This worked well when my entire collection of centerfires was a .223 Remington, .257 Roberts, .270 Winchester, .30-06 Springfield, .338 Winchester Magnum and .375 H&H.
During the late 1990's Hodgdon's new Extreme H4350 and H4831 replaced IMR4350 and the mil-surp H4831. Still use quite a bit of IMR4895, but find my most-used (and most reached-for) rifle powders these days are TAC, IMR4451, Big Game, H1000 and Magnum. The IMR4451 has been replacing H4350 over the past couple of years, because 4451 can be found and purchased easily and H4350 can't, and so far 4451 has worked just as well in a number of rounds. Am getting to like some other new powders as well, especially Alliant's Reloder 26, but they haven't become go-to powders yet.
