As Dick said, my 45 Colt shooting 335gr hardcast came in to a sweet spot at 1075 fps. I went about it by starting just above the lowest load listed, and went up, 5 shots at a time, from there. I got to where my groups were great, and again as Dick stated, pressing them further made the group start to open up. I went back to the last "best group" and called it good. I THEN ran it through my Ohler to see what my average was, and also my standard deviation.

A lot of people are like a slinky: Not much fun till you push them down the stairs!

Lifetime Member of the NRA! Wish I'd a done it sooner.