I have imr 4831, imr 4064, h335, cfe 223, tightgroup, longshot, Alliant steel, and reloader 7 on hand at this time. I shoot jacketed 45-70 bullets with the R7 and get 1.5" 100 yard groups. I really want to harvest a deer this year with a cast bullet. I had the R7 on hand and have read that...