If you don't care about cost and want higher power with less loading problems and easier clean-up the only thing I find that fits that is Black Mag3. I bought four pounds have three left and wish I had bought more as I had to pay the hazmat fee to get it shipped to me. The corrosion with this powder is almost non existent also. I'm not sure I would let my rifle sit after shooting but I have been told it can and will not corrode. Don't blame me if it does. I have seen very little residue on a patch after shooting three or four shots in a row without a swab between shots. Accuracy is there for me and the velocity was higher than equal volume of ffg 777. Less felt recoil than 777 also. Chalk me up as a BM3 fan. Most already know that anyway.