At 150y a 120kg deer shot behind the shoulder with a 223 is out of breath instantly, I've been witnessing that since school age. Reading this thread some say they aren't comfortable shooting a 5kg fox at the same distance with the 17hmr. For me they are closer to your 22lr 7mm comparison than they are together.Yes and no, they are relatively close together, compared to say .22 LR with subs and a 7 mm rem mag
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