Take your shot with the Barnett Biodegradable Clay .50 Caliber Slingshot Ammo 650-Count. Its water soluble, biodegradable material allows for an earth-friendly experience. The Bright-in-Flight design allows for high visibility, and it prevents ricochet to offer improved safety. The .50 caliber creates a 1/2-inch accuracy over small clay ammo. Barnett Biodegradable Clay .50 Caliber Slingshot Ammo 650-Count - Air Gun And Accessories at Academy Sports