I load Rems in .22 Hornet, .223 Rem, .243 Win, 6mm Rem, .25-06, 7 mm Mag, .30-06, .35 Whelen, 9mm, .357 Mag, .41 Mag, .45 ACP and .45-70. If you'll notice, Speer usually has 3 or 4 bullets of the same weight that use the same data. I use Speer #7, #8, #10 or #13 data without looking back.