Well I haven't had a chance to shoot a deer with the 165's I have for my 308 yet, but I like the way they fly,,group real nice,,
But just off the top I'd say "Whatta ya expect!"
3100 is kinda quick fer a 75yrd shot, Hope he didn't make a shoulder shot at that range. You could load'm down a bit and find a slower node,,,?
What ya shootin ? 7mm Mag?