for killing deer with smaller head stamps like 6.8spc and 5.56 I see an advantage to punching through the shoulders with barnes bullets and they work great... I reload for both of these cartridges and I kill deer with them. The biggest 10 point of my life's head is just over my computer as I type, shot once in the shoulder with a 62 grain TSX, dime sized hole coming out and he ran about 25 yards. I killed him with a Colt 6720. When you get to 243/257 power levels I just don't see a need for solid copper slugs unless you eat shoulders or neck. Of course I have not shot many deer over the last 40 or so years..
