Chambered the gun, one shot\click, press R to remove the used bullet. And it come back to my inventory as a damaged condition.
Sorry for bad English.
(((((*i could combine the reloaded\used ammo and chamber the gun again.*))))
Here's a video explains:
[[ https://www.youtube.com/watch?v=16YmBeuDjJQ&feature=youtu.be | name ]]