What we need is a good 270 vs 30-06, wounding ballistics, and pressure thread....
There is no rigorous way of predicting the effects of a bullet wound. However, some basic physics can get us into the right ballpark.
Kinetic energy, momentum, and force are all intimately related. If you assume constant bullet mass, and know how velocity unfolds over time, you know all three things.
In a bullet impact, kinetic energy is not conserved. It goes to crushing and tearing tissue (permanent wound cavity) and into elastically stretching it. Cranz's Law is that wound channel volume is proportional to bullet kinetic energy, but that only sort of works, and only on slow projectiles. Kinetic energy (foot pounds) is really not a good predictor of bullet effectiveness. A single neutron at warp 9 and a 325 grain 45 caliber bullet might have the same KE, but produce very different results.
Momentum is a bit better predictor. Momentum is conserved when a bullet impacts.
On impact, the bullet sheds momentum, and the force it exerts on the tissue ahead of it is the rate at which the bullet is losing momentum. When the bullet loses enough momentum, it can no longer exert enough force to crush or tear tissue, and it comes to rest.
I think it boils down to good placement, a good bullet, and enough speed and diameter to produce a 1/2" hole 16" long.
