+1 on the 4 buckshot.
More than adequate stopping power for home defense and over penetration will be reduced.
A slug can go through several walls which will endanger persons in adlacent rooms and even nearby apartments or house
If in a near by apartment/ home, there is only 1 sheet of wallboard, one sheet of 1/2 inch plywood some insulation and siding before exit.
A 12 ga slug has awesome penetration and will completely through both sides of an automobile which is more than most handguns and some rifles.
At 15-30 feet almost any load will do but 2 1/2 inch #4 buckshot with 27pellets of 20 caliber will drop any intruder. A hit in the leg, or arm will essentially sever the limb. As stated earlier, you still have to aim as the pattern will be probably only 4-6 inches even with an open choke.
montveil in the NC mountains
All persons present in uniform should render the military salute. Members of the armed forces and veterans who are present but not in uniform may render the military salute. All other persons present should face the flag and stand at attention with their right hand over the heart, or if applicable, remove their headdress with their right hand and hold it at the left shoulder, the hand being over the heart.