My 12 gauge with magnum spreader loads doesn’t require much training beyond pointing it north, south, east, or west. Anything in those 90 degrees is getting peppered from floor to ceiling at 15 feet. Two of those loads are stacked with a buckshot load behind them if needed. Only one very narrow stairway brings you to our second floor. A county cop lives next door.
LOL. my thoughts exactly. A shotgun solves many problems. In one shotgun, I load two 6-shot shells, followed by two 4-shot shells, followed by a coupled buck-and-ball rounds, and then more 4-shot shells.
“Anything in those 90 degrees is getting peppered from floor to ceiling at 15 feet. “
Have you ever checked your pattern???