This was shared on another forum, Had to share it here:
Impressive to say the least
Ah the good old days!When I was a kid I knew some several people in the city who shot .22 rimfire in the basement. Usually it was tied to trying to get a scout badge. The "bullet trap" was layers of whatever wood they had, usually spiked to a stack of Rail road ties.
Air quality attempts were a house fan hung with coat hanger wire in front of an opened window or the old coal chute door. That was the same "ventilation" used when spray painting model airplanes and bicycles. An OSHA inspector would have a coronary on the spot, but we thought nothing about it.