A Comparison of Cartridge, Versus Energy, Versus Barrel Length, Versus Weight

Over the last thirty couple years, I've killed dozens of deer with calibers ranging from the .223 Remington (5.56N), the 7.62x39S and the .308 Winchester (7.62N). This has helped me to draw my conclusions on effectiveness, based on detailed analysis of bullet performance on the animals during the initial shooting, then the gutting, skinning and butchering process.