With all the deer that I have shot seen shot, I have seen exactly 2 DRT.

I have killed deer with .223, .243, .25-06, 30-30, 12 guage, 50 cal MZ. I have witnessed deer killed with .270 WCF, .30-06, 7MM RM. The two deer that were DRT were a doe killed with a 115g VLD from a .25-06 and a doe killed with a 12 gauge slug. Maybe two out of 50-60 deer killed/seen killed.

I shoot for heart/lungs and only get the shoulder if it is in the way of the heart.

This deer ran about 60 yards after this (160g Woodleigh WeldCore from 6.5x284 at 2800 fps)

Heart/lung area- top of heart missing/offside lung mushed

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Offside shoulder- destroyed

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IME, fast/slow, copper/frangible bullets, big/large calibers hasnt yielded reliable DRT, of course, I dont mind tracking and where I hunt that is a possibility.