I used to do all the things related in this thread, until one day, an old timer came by to visit, while I was casting bullets. He watched for a while, and then asked, if I thought all this meticulous sorting, and weighing, was necessary. I said of course. He said get your gun, and lets go to the range. I took some of my newly cast babies, and he scooped up a handful of my rejects. We shot five six bulls each, from the fifty yard bench. He beat me on every target but one, with my gun, and my reject bullets. He said if you waste all your time at the casting bench, you won't have enough time to shoot enough to get good.
I now check to see that they are round, not wrinkled, and that the sprue isn't hollow. Thats it, no scales, no worrying about if the balls are lighter than they are supposed to be, or vary too much in weight. Remember the old timers shot balls molded from bag molds that were barely round, often drastically undersized, sometimes made from soap stone, and often didn't close properly. They shot well enough to feed their families, and win a war against the most powerful army on the planet. But they shot virtually every day.
Hungry Horse