NavyVet1959 wrote:If you reload, a .30-06 can easily be used for squirrels. Lee has a .311" round ball mold that drops at around 45.16 grains. Load it on top of 2 or 3 grains of a fast shotgun powder (Red Dot, etc) and you are ready to go. If you want a bit more weight, there's also some 113 grain .309" bullets and you could use some of the .32 S&W Long and such that could work in a .308 bore with resizing. I probably wouldn't bother resizing the .311" round ball since it's going to resize on its own as it is being seated or shot. If you have a chrono, just try to keep the velocity subsonic for the round balls.
A whole bunch of years ago I tried to work up a load for Woodchuck in my .30-06 using single 0 buckshot (not legal to possess in NY State at the time) with very mixed results. The soft lead made a mess of my bore and I kind of gave up and went back to underloaded jacketed bullets.