I'm surprised no one has mentioned WW 748. It works well in my M14, burns clean, and meters consistently. Shooting fmj's the accuracy is quite acceptable. It also works well in .223 loads. I agree that IMR 4895 is more accurate especially with 168 gr. bullets but if you want to shoot a lot with good accuracy I would consider WW 748. Purchased in 4 or 8 pound canisters it is relatively inexpensive as well.