I shoot the exact load you want, shot a mule deer in 2008 year at 485 yards. 200 grain sierra game king 95.5 grains of retumbo oal is max in ur magazine. however the 200 game king is an elk bullet as far as im concerned it has a thicker jacket and more antimony in the lead. shot 1/2 inch groups all day. last year i went to the JLk vld 210grn. long boat tail, higher bc, at 94.0 grains of retumbo. oal 3.745 its a deer slayer. high bc. if u love sierra try the new 210 vld sierra matchking or 220 grain match, but don't shoot deer with 240 matchking they won't expand on deer at long range. I like that 210 JLK LBT, they use a J-4 jacket like berger.