I've had good luck with Accurate 1680. According to my chronograph 1680 has a smaller standard deviation than lil gun and win296. Also holds a slightly tighter group at 50 yards. My go to load is 11 grains of 1680 in converted Lake City brass with 225gr Hornady BTHP, OAL 2.250. Average speed of 1058 fps through my 16" Ruger American Ranch. Also cycles through my 7.5" AR with slower speeds. I'm sure a lighter bullet is more sensible, but the 225gr. makes a nice thump...