I have 223's, but prefer 7.62x39 AR for deer. I think a 62gr-64gr soft point like mentioned or even Gold Dots would do the job. It's all about shot placement either way. If you can't hit the vitals, it doesn't matter what you hunt with.
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My Daughter and I ran the Barnes Vor-Tx, 55gr TSX in our .223 and we dropped numerous deer with that load.Barnes 70 gr vor-tx