I can do it for ANY bullet that tickles you. Just tell me how LONG it is, and it's diameter. Weight, as I mentioned is not pertinent to determining the required twist. For example, a .30-caliber bullet, 1" long, needs a twist of1 turn in 14.22" to stabilize it,whether it is a lead bullet weighing 180 grains or a zinc bullet weighing25 grains..............