I guess I'm a lazy reloader, as I've been reloading for the 270 since about 1980, and I've only used one powder.......H4831. I've also only used 2 different powder charges......59.5, and 60.0. I figure that if it ain't broke, it don't need fixing, and it's always worked very well for me.
Speaking about IMR-4064, I knew a fellow who used I for practically everything he reloaded........22-250, 243, 270, 280, and 30-06. He always killed what he shot at, so I guess it worked.
