Going shooting tomorrow

Well, so far, the gun seems capable of accurate shooting. A couple of weeks ago I loaded up some 160 grain Speer boat-tail soft points with 54 grains of IMR 4350. At 100 yards, accuracy was okay (around 2") but nothing to get thrilled about. Much better was a hotter load (also with 160 grain boat-tail soft points). The only trouble was that I don't really know what it was. It was some left-over ammunition that was included with the gun. For sake of experiment. I have loaded some significantly hotter cartridges (60 grains of IMR 4350 behind the 160 grain bullets). I hope to find out tomorrow if I get better accuracy from them.