This shotgun ammunition is loaded with special non-toxic pellets that are 26% denser than steel while being soft like lead. Made up of a combination of buffered and Nano treated pellets, each Double Classic shotshell load offers shooters deep penetration and tight patterns and will not damage barrels. Classic Doubles ammunition features softer surface hardness which makes each load safe to use in older firearms. Each shotshell features a weather-resistant crimp which makes them ideal for waterfowl or upland bird hunting.