I was invited to go Antilope hunting this fall. Now I am not into this but it gives me an excuse to have a new gun made. I was thinking about a 280 Ackley with a 1x10 twist 26" do you think I could stabilize 120 grainers out of it. Or should I look at the 6.5-06 ackley. 257 Robert improved. So many choices.