Who in the hell shoots animals so that "entire hind quarters were tossed".
WTFO???
I shoot a .300 WSM (180 gr Winchester Supreme Silvertip) and last year I shot a pretty decent sized cow elk with a high shoulder shot that put her down on the spot. The bullet went through both shoulder blades and exited. I reckon I "lost" a piece of meat about the size of my fist. On the other hand, she died on the spot and there was zero tracking involved.
If someone puts multiple rounds of a large caliber in the wrong place on an animal, I'm sure they are going to lose meat. IMHO, those idiots need to learn to shoot better, or not be out hunting.
I still stand by my belief there is no such thing as too much gun for your chosen quarry. Having said that, you really need to be able to shoot worth a damn so you don't empty your magazine several times trying to put your animal down!
It really shouldn't take more than one or two well-placed shots to put down any North American game animal.