RE: What's your proceedure for working up a rifle load?
According to my Hornady 5th edition, the 22-250 Rem. using a 55 gr. bullet, and Varget powder the starting load is 30.8 grs., 31.7 grs., 32.7 grs., 33.6 grs., and max. 34.6 grs. I usually will load in the published steps above, and load 5 rounds of each checking for pressure signs, and best accuracy. Good luck.