I think if your tracking wounded deer you should carry a round that delivers maximum terminal effect , once the beast is wounded then in my opinion the primary concern is finishing it swiftly and safely
correct answer tackb
plenty of things to consider before taking the shot but make no mistake 170gr of lead with a down loaded round is no slower at killing than a full power copper round even on the hoof this is proven, expansion is very very good with lead people get blinkered with fast rounds,atb wayne