Good choice on the 280ai, i really like it a lot. I have one in a Kimber Classic select with a 24" barrel and i shoot 168 ABLR's at 2840 FPS with respectable accuracy, and since i am not hot rodding it, the recoil is pretty mild. I didn't want it to get too wild in a 6 pound rifle. I have taken mine out to 800yards twice and rang the MOA steel targets more than 75% of the time. I think it fits right in between my 7x57 and 7mm Rem Mag speed wise, It is just right!