I use a 30-06...
28/30 are bang-flop...
only had 2 that ran about 20 yards. both were not good shots on my part.
one was with the 30-06, was walking up a hill, quartered. I ended up gut shotting him, and put another in his neck when he sat down for a "breather" at the top of the hill.
the other was with the 12 gauge nef, quartered about 30 yards away, i put it in his lung and he ran down hill 20 yards then tripped when falling and slid another 10 or so down the hill. ,