I have never had a deer drop in its tracks until this year. I've shot them with 270s and 25-06 and they have always run at least 20yds, even a young doe last year that only came in at 90 pounds gutted.I've always taken heart shots.
This year I used a 30 caliber Sako chambered in 782 Warbird. I loaded it with a Sierra 165gr spbt. A good size doe, about 130 pounds gutted, popped over a hill about 20yds away. I shot here through the heart as I always do and she never took a step. The only move she made after she hit the ground was an ear twitch. I was expecting better performance than my other rifles but this to me was really impressive. I'll get another chance in January to see if I can do this again.