Good discussion! Most ammo is jacketed these days, but if you ever shoot any non-jacketed ammo you’ll get lead coming out of the barrel for a long time afterwards. Even after pretty thorough cleaning.

The stuff on .22 bullets is plating, not jacketing, and doesn’t really cut down on the lead plume at all. It’s nowhere near as thick as the depth of the rifling. Shooting .22 is like huffing lead plume, with a side of dirty primer and powder smoke. It’s so good for plinking though.