The one shot kill of a bull elephant with a Ruger Super Blackhawk 44 Magnum is a published fact. The bullet penetrated something over 36". It has been published in no less than a dozen magazines with date, time, location, and name of the shooter.
Rarely if ever, excluding shots that strike the central nervous system, do animals die instantly to one shot. They don't drop in their tracks. Even with perfect kill zone shots, animals dropping where they stand stone dead are extremely rare.
The average large game animal shot through the heart and one or both lungs, even if shot while standing still, runs about 50 yards or more. For example wild boars shot straight through the heart and both lungs will often run for several minutes, and prefer to die standing up. More than once I've seen whitetail deer shot straight through the heart and lungs with 7MM magnums run for quite some time and distance. The only way to make sure an animal dies in its tracks with one shot and does not move is to hit the brain or the spinal chord above the shoulders.
Less than one in one thousand hunters is qualified to take shots on big game at ranges in excess of 300 yards. By qualified I mean that said hunter is able to accurately estimate the distance, the wind, and the elevation difference, well enough to hit his target within 6" of where he aims and calls the shot 95% of the time, guaranteeing a one shot kill in a quick and humane manner for the animal.
Make note that around 90% of all hunting guides, guys who make their living hunting big game animals, shoot non magnum rifles when they hunt, and carry the same rifle when they guide. The only reason I suggest a 300 Winchester Magnum is that average hunters do not see the field time that guides and hardcore hunters do, and they need an edge to allow them a little latitude in range estimation and shot placement, not to mention they often hunt less than 5 days, and do not see the chances to shoot game the others do.
As far as backing anything up, I hope you don't call posting a score **** with not only the name of the shooter, but also both the hits AND the misses whited out, and with scores obviously ADDED after the fact backing anything up. That may be your score sheet and it may show 38 out of 40, but who knows? With all that whiteout on it, it could be anything. I'll give you the benefit of the doubt and take your word for it.
Notice I never made any claims that I did anything. So don't start accusing me of falsifying anything. Anything I said can be verified in your better reloading manuals and firearms magazines.