As a replacement for 4759, I recommend either that old standby, 2400, or else the afore-mentioned RL-7. But I use a lot of 748 in mine. The RCBS 30-180 FN over 30 grains is very accurate, and is what I use when hunting with the 30-30. For funsies, the 311-465 or 311-466 with 17.5 grains of 2400 is hard to beat.