Ray Atkinson, you mentioned oatmeal couple times. You hear about the lady that was told a little gunpowder in her diet would prolong her life? Daily, she sprinkles a little gunpowder on her oatmeal. Lived to be 106. Left behind 5 children 23 grandchildren 16 great grandchildren and a 40 foot hole where the crematory used to be.

A sub-40 caliber example to support Atkinson's reasoning: made a proper intermediate range broadside shot one time on a Muley using my 35 Whelen and a 250gr Speer Grand Slam bullet at 2400 fps MV. The Muley didn't drop right there. Ran about a 100 meters before piling up. Good blood trail however. The bullet went clear through.

The bullet didn't expand much owing to its thick jacket not meeting much resistance coupled with the small bore diameter and lower impact speed at that range, it didn't impart much shock.

Oatmeal , Have to check with Lydell on that.

Its not uncommon at all to have smaller game animals make many tracks when hit with a real big bore, the would is more like sticking a broom handle thru them, all this one shot claim with any bullet is based on a low number of kills or brain, spine shots..Fast kills are made with 220 swift, 22-250, but on occasion those fast calibers don't get the job done and the game is never found..I prefer a good wet 100 yard blood trail to about anything else. its positive and easy to track and not much meat spoilage..To me its the best of both worlds.

I stuck a Speer 338 275 grain semispitzer in the spine of a big bull elk back in 1984 or so. 2450 FPS at the muzzle, hit the bull at 425 paces. Broke two ribs going in, 3 vertebrae and 3 ribs departing. Found under the skin far side. Weighed 212 grains. Only one I ever recovered. I have considered it the standard by which elk killing bullets should be judged.
The local butchers shop called me and said on many years of cutting elk, it was the most bone breakage he had ever seen.

If one wants to know if his chosen bullet is up to its job, just stick it in the spine of a elk, Moose or Eland, if anything can wreck a bullet those big boys backbones will do it....If the survive the spine shot they will penetrate lengthwise in about any animal..