Most U.S. gun owners use lead-based ammunition and primers, and nearly half don’t engage in any post-shooting hygiene behaviors such as changing their clothes or showering, a study found.
No it doesn’t. The shot cup and the charge of shot travel down the barrel as a single contiguous unit. The outer walls of the cup are what contact the barrel. The shot doesn’t appreciably separate from the cup until several feet past the end of the muzzle when the petals of the shot cup are no longer restrained by the barrel. Separation is only able to happen when the cup encounters wind resistance out there in open air, and this is trivially verifiable by firing a bird shot shell at a paper target from only a couple of feet away.
This is all especially so with steel shot, because you definitely don’t want that touching the inside of the barrel. I haven’t cut a buckshot shell apart lately so I suppose it’s possible that there are still commercial loads out there that just utilize a plastic wad with no cup, but birdshot shells certainly don’t.
I mean when you fire the round, the shot exits the cartridge and proceeds down the barrel, naked.
No it doesn’t. The shot cup and the charge of shot travel down the barrel as a single contiguous unit. The outer walls of the cup are what contact the barrel. The shot doesn’t appreciably separate from the cup until several feet past the end of the muzzle when the petals of the shot cup are no longer restrained by the barrel. Separation is only able to happen when the cup encounters wind resistance out there in open air, and this is trivially verifiable by firing a bird shot shell at a paper target from only a couple of feet away.
This is all especially so with steel shot, because you definitely don’t want that touching the inside of the barrel. I haven’t cut a buckshot shell apart lately so I suppose it’s possible that there are still commercial loads out there that just utilize a plastic wad with no cup, but birdshot shells certainly don’t.
Edit! It was remarkably difficult to find a slow motion video of this in action: https://www.youtube.com/watch?v=1if2QKHWmU4