I am looking at the charts on page 6 and the 30 caliber bullet has about 1/3 more energy at 2500. I see the trajectory and wind drift lag. But if I want rocks busted wouldn't more energy be useful?
Your right, for rock busting you do want more energy :
............ 300 R.U.M. ...............
…. 180gr Sierra SBT GK …...
……... 82.8gr - 4831 ………...
….......... 3,250fps .................
......... 4,200 - Energy/ft.lbs ...
= Boulder Buster's @ 500yds
