This refers to a specific type of shotgun ammunition manufactured by Federal Premium Ammunition. Generally, it designates a 12-gauge shotshell loaded with approximately 1 ounce (or 1 1/8 ounce, depending on the specific product) of lead shot, designed for target shooting disciplines like trap, skeet, and sporting clays. The “100” often designates a box quantity or a specific product code within Federal’s product line.
Ammunition of this type is crucial for competitive and recreational clay target shooting. The controlled recoil and consistent shot patterns provided by these loads are essential for accuracy and hitting fast-moving clay targets. The development of specialized target loads has significantly contributed to the growth and refinement of shotgun sports over the past century.