While I cant speak for John specifically, I bet he is gonna get some smashing long range groupings as he gets more comfortable with the gun. The 750 A-Max bullets have monsterous Ballistic Coefficients, so if he does his part he will probably get good groupings out as far as he can see......500.....600.....700 yards, who knows? Stout recoil? Sure, I can imagine. I did the free recoil math for the 510 whisper in an Encore rifle and was shocked. But in a pistol, under proper circumstances I cant see it being nearly as bad.
Brian M.