SinterFire Rifle Ammunition Features The SinterFire Next Generation line uses a monolithic copper construction to create a lead free replacement for traditional lead ball projectiles giving shooters a reliable option where environmental or range regulations call for lead-free ammunition. Unlike frangible training rounds this projectile is non-frangible meaning it behaves more like a standard ball round in terms of function and feel while still eliminating lead content. Each 50 grain bullet is loaded into brass cased .223 Rem ammunition keeping the round compatible with standard .223 Rem rifles without modification. This combination makes it a practical substitute for shooters who need a lead-free option without sacrificing reliability. Packaged 50 rounds to the box this SinterFire load gives shooters a manageable quantity for range sessions qualification courses or general training use. The cost effective nature of this lead-free ball ammunition makes it a smart choice for high volume training where lead-free compliance is a requirement rather than a preference. Its brass casing offers familiar handling and reliable extraction in semi-automatic and bolt action rifles alike. This round suits shooters and facilities that need dependable lead-free performance for everyday range training. SinterFire Rifle Ammunition Specifications Manufacturer: SinterFire Model: Next Generation (NXG) Caliber: .223 Rem Rounds Per Box: 50 Bullet Weight: 50 gr Bullet Type: Lead Free Ball Casing Material: Brass Available At: GrabAGun