My young son has and it worked terrible. Maybe it was the bullets, but it took 4 shots potential killing shots before the deer finally just bled out and fell down. Very little damage inside. The bullets was a 64g Winchester Power Point. I have bought some TTSX's to try from the good result mentioned on the fire. My son used a .257 Roberts this year and killed the deer with one shot. The only reason I am considering the .223 again is because my daughter can hunt this coming year.
Try the 55 Hornady sp. I've killed a bunch of deer with those with zero issues. They always fugg up a deers innards worse than 170 gr. sp's out of my trusty old .30-30.
