12ga. Loaded alternately buck, slug, buck, slug.....Slugs will penetrate body armor w/o trauma plates.
Yep, that’s how I load mine, but I go slug, double ought buck, slug, etc. Always figured the first bad guy was going to be wearing body armor. A twelve gauge slug at point blank range might not kill him, but it sure as hell is going to put him down. Rack the slide and double ought will take care of the problem.