Here's a simple test you can do anywhere you can shoot a rifle.
Get two watermellons. Shoot one with a 350 grain hard cast bullet from a 45-70. Shoot the other with a 180 grain soft point from a 300 magnum.
Watch to see what happens.
Assuming that you are useing a bullet properly constructed to get
THROUGH the vitals of your intended target, no matter if it stops under the skin or exits, the bullet that transferes its energy the quickest will create more trauma inside the animals body. The slower a bullet travels through a body the less trauma it creates around the actual bullet hole.
Getting hit by a baseball and a blowling ball can not be considered because they do not go through a persons body like a bullet does.
While it's in the target it's dumping energy so, even if it passes thru/exits, the longer it takes to do so the more energy is dumped in the target.
Not true. A bullet only has a specific ammount of energy to transfer to the animals body. The longer it takes a bullet to transfer its energy into the body the more gently it does it and the less trauma it creates. It mearly punches a straight hole all the way through instead of creating a huge shockwave inside a body.
We've all seen pics of ballistics gel after being shot by different bullets. The faster moving bullets always produce larger wound channels.