@@theboxingarmadillo1610you can't do it like that without mods that let you drop guns without picking up another one. Otherwise you'd just have to swap the shotgun with any gun dropped by an npc when you kill them.
I swear if people didn't know about the first one by their first day of playing. You pay zero attention and probably let all kinds of details pass you by. Reminds me of those compilations of "hidden details" and it's a list of some of the most obvious features in the game.