Bismuth being denser and softer than steel it provides excellent penetration and high energy transfer. The double-layer payload with different shot sizes delivers homogeneous shot patterns and ensures the shot-killing power even at long distances. The special Green Core wad guarantees optimum performance in different climatic conditions regardless of temperature and humidity. Green Core is a completely bio-degradable shotshell wad that decomposes with exposure to bacteria found in nature and at the same time creates no micro-plastics. It is one of the first shotshell wads designed to provide superior performance while at the same time providing peace of mind to environmentally conscious shooters and hunters. The Green Core wad is denser than water and will sink immediately to the bottom of any waterway.