I agree with allyyooper.. I have yet to find a .243 that didn't shoot the 85 gr HPBT very well. I too use IMR 4350 powder with 9 1/2 Rem. primers. All my .243 cal rifles, in cluding my .243 AI just love 'em.. As far as pelt damage, the groundhogs I've shot have been mostly in & out, just a little bigger on the "out" side...