Great bull, congrats to your son. I just shot a 5x5 raghorn in Wyoming with a 6.5 GAP (Len's Mountain Rifle) with Copper Creeks 156 grain Berger. DRT at 250 yards, made a mess of the front shoulder (complete pass thru). I got 2850 fps as an average speed off a LabRadar and the barrel isn't fully broken in. This ammo shoots sub 1/2" at 100 yards. I get the same results with the 140 VLD, I just wanted a heavier bullet.