Probably every player in Fallout 4 faces a shortage of ammunition. The main way in the game to farm ammo was grind, but modders of nexusmods created events, by which you can craft ammo on the bench. This mod will not bring misbalance to the game as creation of various types of ammunition requires different skills, such as gunsmith skill.
You can download this mod at the developer site. There is also a description of the craft.
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