These 12 gauge shells from Sellier & Bellot are fitted with 12 pellets of 00 Buck for serious threats hunting applications or for duty/Law Enforcement use. A reliable 00 buck shell is a versatile tool and can be used for several applications. These S&B shells are as effective and consistent as any other quality Sellier and Bellot product.This reputable manufacturer has been creating ammunition continuously for longer the most any other facility in the world since 1825. That's approaching two full centuries of ammunition production or in other words enough time to have garnered serious expertise and spectacular consistency in their manufacturing processes. All Sellier and Bellot products are measured to CIP standards and must meet or exceed S&B's own quality control measurements and specifications.