Lead exposure through shooting is mostly caused by the lead shed by the bullet when you shoot the gun. See my comment above:

https://thedonald.win/p/HEpvLe8W/x/c/16bPQRZh5z

Shotgun shells not as big a problem as bullets, because the lead shot is usually encased in a wad.

Spez: I forgot about the primer, which may also contain lead.

Lead exposure through shooting is mostly caused by the lead shed by the bullet when you shoot the gun. See my comment above:

https://thedonald.win/p/HEpvLe8W/x/c/16bPQRZh5z

Shotgun shells not as big a problem as bullets, because the lead shot is usually encased in a wad.