I would not dispute the "drop at the shot" experiences related.
However, in *MY* experience it is rare and is contrary to my experience in Montana.
40 yards of travel is typical for heart lung shots.
I have had them go as far as 200 with a 50 or 54 with "perfect hits".
I can count on one hand the number of deer I have shot with a RB and had drop to the shot and I have probably shot at least 70 with a RB (never did a count). I shot a WT doe at 300 yards (lasered I had to belly crawl 50 yards to get this close) with a 6.5x55 Mauser with 140 gr at about 2700, a very capable deer killer for long range freezer filling. Bullet broke the upper leg bone and nicked the top of the heart just behind the arteries then passed out of the deer. Deer ran about 50-60 yards and piled up just before getting out of view. There was a buck hanging around looking her over and I feared if the doe was not dead he might get her up if I spooked him. So I waited till he moved off 50 yards or so. As I approached I saw she was not on her side and then at about 50 yards she raised her head and I then head shot her.
Below is the heart of a Mule Deer doe shot at about 40 yards. She took a .662 pure lead ball started by 140 gr of FF Swiss at the base of the throat. MV about 1600. Impact something like 1400+ I would guess. Ball did not pass through producing something over 30" of penetration.
She turned 90 degrees and ran 55 long steps before falling. I could see the blood pouring from the wound and her run was obviously that of a very hurt deer. But she did not fall down.
Blood trail.
Ball before and after.
Entrance would was about 1" in diameter in the hide and well over .662 in the front of the brisket.
Now we much consider the deers mind set when shot.
The doe had seen me but did not know what I was, we can assume she was then on "red alert" deer that are aroused tend to run farther.
A friend shot a doe last year, species unknown, at 120 yards with a 45, ball was a pass though breaking ribs on both sides and the deer dropped at the shot. She raised her her head as he approached and he shot her in the head. He was hunting with a swivel breech and did not stop to reload.
There is NO consistency.
I shot this deer in 08 with the 16 bore, 90 yards, center of the shoulder, no bones struck other than maybe a rib or two. Deer dropped to the shot and died before I reloaded and approached.
I am not in anyway disputing the claims that deer are dropping tot he shot. But I feel that it can mislead some who start hunting with a PRB and the deer run off then they think the RB is deficient.
They run off in most cases no matter WHAT they are shot with. This from myself and some people I hunt with who with our own kills and that of people we were guiding amounts to hundreds of deer. Consensus is that they almost always run off or at least stay on their feet.
IIRC Sir William Drummond Stewart stated that it was easier to knock down an elk than a deer and he was using a 20 bore rifle.
Dan