The only shotgun I have holds 2+1, and is a 16 gauge, but it's not really a home defense firearm for me. Instead I rely on either my Ruger SR9c, Springfield Mil-Spec 1911A1, or Kahr CM9 (which is always in my pocket at all times).
"It's a gun you loaded on Sunday, and shot all week."
"If God didn't create man equal then Sam Colt had made them equal."
"Fast is fine, but accuracy is everything."