Ammunition can also be crafted in the chemistry lab for it. However you can also just buy it in Diamond City if you really want. Included with the mod is a cryptic message on where to find the rifle in game.
It has a lot of customisation options, and has two ways of acquiring it. The DB Snipers mod adds a stand alone rifle to the game. Unfortunately, getting new items into the game is a much more difficult task on the PS4, with it being unlucky when it comes to the Fallout 4 modding scene. All but one of these mods are available for both PC and Xbox One.
