I concur with Daryl's thoughts.

What I will point out on the home invasion area is the danger of pellets missing the offender or over penetration by a large degree. I most certainly would opt for 00 or 000 and try to keep shots within 10 meters. Smaller shot normally does not open as quick and a load of this 4's even 7's will over penetrate at close range more than Buckshot. As the smaller sizes clump for longer the and travel as a long group the front runners punch so far in then the followers go progressively further. Probably stop the bad guy faster as a 1&1/2" hole in the right area tends to do that.