So I have a nice supply of Federal Truball Deep Penetrator (PB127 DPRS) slugs. I'm thinking about my HD shotgun setup and was wondering if these slugs will defeat armor. For a home invasion scenario I like the shotgun over the AR for it's single round incapacitation capabilities. However, I do wonder about bad guys wearing armor. Would one of these slugs defeat it? What about strategically loading the gun with the Fed LE1321B #1 buck in the chamber and the slug behind it. Then alternating throughout the tube after that. That way, if you do encounter an armored threat, you simply double-tap him and the second round (slug) is definitely effective.