I never knew that a .410 could be a good deer gun. I learned something new today. Thank you.
I'm not a deer hunter, but the ones I know here in Alabama seem to favor 12 ga. 3" Max Loads. The only buckshot I have are tactical loads for my 590.
A .410 has the same hitting power per pellet as a 12 gauge, just less shot, otherwise they would be useless.
a .410 is a very useful shotgun, frequently carried by older guys to cut down on weight and recoil. They do very well with it to the point that there are .410 skeet leagues.
It is a good gun. Seriously good.