Primer, shotshell is a miscellaneous item in Fallout: New Vegas.
Characteristics
This item is used as an ingredient to create 12 and 20 gauge shotgun shells at a reloading bench along with lead, the respective casing and powder, pistol.
Location
This item, along with others like it, can be bought at the Gun Runners kiosk outside the New Vegas Strip. It can be purchased in small portions from vendors, by itself, or in boxes of 25.