Lead-free ammunition is growing in popularity as alternatives to lead-based bullets given the health risks that lead poses to humans, wildlife, and the environment. In standard ammunition rounds, lead is the major constituent of the projectile mass.
Lead bullet fragmentation

Lead-related problems
The health concerns that lead poses humans is also a factor that is being increasingly considered by game hunters today. Lead ingestion leads to myocardial malfunction and stroke mortality, reduced brain mass and even accelerated crime activities. The exact toxic dose of lead has not being established as it varies from individual to individual, nevertheless the effects of its exposure can be devastating. Young people are affected the most by lead poisoning, which results in intellectual problems and retarded growth. Whenever lead is ingested, it is dissolved by acids present in the stomach where it then enters the blood stream, is transported into internal organs, assembles in the liver and is finally deposited in bones. The intensity of lead intake is proportional game consumption and this is prevalent among local hunters.
Lead-free ammunition Fragmentation
Lead-free ammunition is made of composites of metal powders such as copper, tin, or brass (a mixture of copper and zinc) and polymer composites. Unlike lead bullets, Ecomass Lead Substitute Materials ammunition contain zero toxic constituents are not a threat to human health. The solid design of lead- substitute ammunition results in uniform, rapid expansion, which - in combination with excellent mass maintenance. Such ammunition can be found at many gun stores and ranges and come in a wide range of caliber, from handguns to rifle ammunition.

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