Marlin Guide Gun in .45/70. It will go through that wall that he is hiding behind.
And that's a real problem! A powerful rifle, or a .44 Magnum, is a poor choice for home defense, as is any high-penetration firearm which can pierce interior (and exterior) walls and cause ‘collateral damage’ to family members, neighbors or passersby.
A shotgun sounds like a great idea - but many home invasions begin with an innocuous-looking ‘delivery man’ ringing your doorbell, or someone ‘looking for directions’ or ‘needing to make a phone call.’ Do you answer the door with a shotgun in hand? Or would you be better off with a handgun in your hip pocket?
Chances are, anyone breaking into your home will be a kid looking for cash, guns or stuff he can sell. He’ll be as scared as you are, and any loud noise will send him running. A .45ACP or .38 Special is easy to carry and conceal, handy in close quarters, and plenty for the job. And it won't rip your house apart.
By the time you're worried about shooting someone behind a wall in your house, you're already in over your head. The best 'home defense' plan is to discourage home invasion before it begins. Common sense measures include not leaving a garage door opener in an outside car, securing doors and windows, installing an alarm system, cooperating with police and neighbors and being aware of your surroundings. The bad guys are opportunists and cowards; if your house doesn't look like an easy target, they'll go find one that does.
