Norma cases, 53.5 gr. H4350, 135 gr. Sierra Matchkings seated .005 off the lands are giving me 1/2 inch groups and 2910 fps from my Cooper M57. Drop, verified by field shooting is 30" at 550 yards sighted 2 3/4" high at 100 yds. I'll be shooting 130 gr. TSX's with 55 gr. H4350 for elk this fall. Haven't done any messing with seating depth yet, but they shoot 1" already. Rifle is a Cooper