Casting is hard work to get perfect drops. Use a micrometer and a good scale to check the size and weight. You can sort them and get as many as possible that are the same. I'm doing hollow point 357's. Some are 119 grain +/- .3 grn and some are closer to 123. Just keep them separate. At 80 yards the poi shift is only 2 inches so dead hogs and deer don't know the difference ¯\_༼ᴼل͜ᴼ༽_/¯