BAD IDEA.

Firstly, I bet it is illegal in your state to turkey hunt with a 410. And if it isn't, it sure as heck should be.

Secondly, some 3 1/2 inch, high brass, turkey loads won't get the job done on a turkey head. Why the heck would someone shoot something with a few pellets in it, with maybe 1/8 of the effective range of a 12 guage load?