[RLegacy]

Best gun for home protection is a shotgun, loaded with 00 buckshot. You don't have to be dead accurate and you're less likely to shoot your family or a neighbor through a wall. Pump action model 870 Remington would be my choice with a short slug barrel. Stay away from the Mossberg.

[MonroeDNA]

00 buck is too big, IMHO. It will go through several walls.

#4 buck is better, as long as the range is less than about 50 feet.

[Bear_Slayer]

Best gun for home protection is a shotgun, loaded with 00 buckshot. You don't have to be dead accurate and you're less likely to shoot your family or a neighbor through a wall

There were pictures posted on another frequent "whats the best gun" thread that showed various calibers punching through simulated intereior walls. 00 buck went through 4 sheets of drywall, and the resepctive 10 feet of space between them, with ease.

I recommend #4. It will kill and not easily pas through interiors.