I found that mine likes IMR 4064 I shoot a 140 Gr Barnes TSX seated .050 of the lands this made as much difference as the amount of powder i put in. I sarted loading at 41.5 gr and worked up until it started shooting good whitch was 42.5, 42.6, 42.7, 42.8 all shot 3/4 groups at a hundred. I did not go any higher and settled with 42.6 I wish i could tell you the speed but right now i don't know. I hope this helps you out.