It doesn't take special modern bullets to kill the shyt out of deer with a .22. I started killing them with the .222 and .223 back in '91. Bullets I used back then were the old 50 and 55 gr. Nosler solid base and the Win. and Horn. 55 gr. soft points. I have an 8 point on the wall from '91 and another from '93 taken with the Noslers, one with the .222 and the other the .223. The '93 buck weighed 172 lbs dressed and one quartering shot through the lungs from 125 yards put him down on the spot. The little Nosler hit near the last rib on the left side and was recovered from the right shoulder.