BioAmmo Rex Clay 12 Gauge 1oz 2.75in 8 Lead Shot Centerfire Shotgun Ammo 25 Rounds. Premium quality cartridges designed by the Olympic Medallist Jorge Guardiola specifically for Sports Shooters including for high-level competitions. Specifications for BioAmmo Rex Clay 12 Gauge 1oz 2.75in 8 Lead Shot Shotgun Ammunition: Manufacturer: BioAmmo Gauge: 12 Number of Rounds: 25 Shot Size: 8 Shell Length: 2 3/4 in Muzzle Velocity: 1312 ft/s Application: Competitive Shooting Included Accessories: None Shotgun Shot Weight: 1 oz Shot Material: Lead Primer Style: Centerfire Cartridge Case Material: Organic Biodegradable Lead Free: No Features of BioAmmo Rex Clay 12 Gauge 1oz 2.75in 8 Lead Shot Shotgun Ammunition Bio-Polymers Used For Hulls And Wads Are Biodegradable & Compostable Do Not Generate Microplastics Have Ok Compost Certificates From Tuv Austria Bio Ammo Shotshells For Clay Target Shooting Package Contents: BioAmmo Rex Clay 12 Gauge 1oz 2.75in 8 Lead Shot Shotgun Ammunition What is BioAmmo Rex Clay 12 Gauge 1oz 2.75in 8 Lead Shot Shotgun Ammunition good for? The manufacturer says that it is best for competitive shooting.BioAmmo BR2880: Rex Clay 12 Gauge 1oz 2.75in 8 Lead Shot Centerfire Shotgun Ammo 25 Rounds