Hunts,

Never trade velocity over accuracy. At 300yds 200fps slower in velocity your bullet will only drop a inch or two more than a fast one. 7mm-08 with 140gr only drops around the 7inch mark at 300yds with a medium handload or factory load traveling at 2860fps.

Getting a accurate load and proper sightin is the key. Elevation is never a problem if you know what your bullet drops and you know the yardage. Making sure your rifle hits dead center on the left and right axis is one of the main keys to longer shots. Never worry about the power of the rifle just a good hunting bullet and hitting where you aimed and you'll take home the meat.