Ammunition
American Trap typically uses lead shot ammunition, with shot sizes ranging between #7 ½ and #9 (2.0-2.4 mm). The major components of a shotshell are the "hull" (casing), "primer" (ignition device), "powder" (smokeless gun powder), "wad" (shot cup and cushion), and "shot" (round pellets). The "shot" in a "shotshell" consists of 300-450 +/- small spheres. Shotshells are allowed a maximum payload weight of 1-1/8 oz (32 g) of shot. Velocity may vary, but is limited based upon shot mass: 1290 ft/s (393 m/s) for 1-1/8 oz (32 g), 1325 ft/s (404 m/s) for 1 oz (28 g), and 1350 ft/s (414 m/s) for 7/8 oz (24 g). Maximum loads are generally only needed for longer "handicap" yardages or the second shot in Doubles Trap. When required at certain trap clubs or ranges, steel shot is used with slightly larger shot size. (e.g. #7).
Quality ammunition is readily available from a variety of manufacturers. The more recognizable names include Winchester, Remington, Federal, Fiocchi and Rio. Ammunition may be marketed as "premium" or other. Manufacturers price their ammunition accordingly.
Remington prices their STS/Nitro family higher than their Gun Club line of shells. Federal prices their Gold Medal and Federal Paper shells higher than their Top Gun or Estate lines. The quality of the hull construction, shot, powder and primer components impacts the price of shotshells.
Reloading or self-loading of ammunition is popular among a segment of trapshooters, due in part to the sheer quantity of ammunition used in trapshooting. Reloading can be economical. The ability to customize a shotshell "recipe" to one's shooting, makes reloading attractive and adds another dimension to the enjoyment of shotgun shooting sports.
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