Do they make slugs for 410 shotgun?

Yes, Dick's Sporting Goods or Gander Mountain carries them. You can also find them at gun shows.

MUST be examined by a good gunsmith

i do not belevie so..at least not that ive seen. but wat u can do is cut off the plastic shell and remove the bb's and wads. just leave the wad in front of the gunpowder there. this will still set...

there are several makers of the 410 auto-loader. my favorite is the Saiga .410, (http://www.raacfirearms.com/Saiga_410.htm) it is a military style tough looking gun. the other makers are: Rmiington,...

Depends entirely on your intended end use.