Leave the varmint guns at home for any serious deer hunting.
Sure they'll kill a doe and forked horn relatively well, a big buck is a different story.
Ahh well, guess it depends what kinda deer.
Little 80lb texas whitetail does/forkys, sure shoot em with a little 223 if you want, my dogs bigger then them and it will work everytime...
250lb 4x4 northern whitetails/mule deer, no thanks...