Hatchers's tests, seems to me, were with pigs on litters, & anesthetized at that.
They were shot all over the body, but a lot in the stomach, etc, before and after eating corn - different times
for digestion of the materials they were fed. They were also shot at range, too, 200yards was noted. Oft times,
were were corn kernels found up into the neck muscles due to what they named as hydrostatic shock. Blood vessel disruption
was also noted, a long distance from the bullet's path.
Today, this is displayed by slow motion video of bullets in soft materials, such as ballistic gelatin, various solid soaps and clay.
Similar tests are not likely to happen today, for sure.
interesting that some things are entirely clear to me, that I read 40 and 50 years ago.