Small projectiles, frequently spherical, are manufactured from diverse materials depending on their intended application. The composition ranges from steel and lead alloys for use in firearms and airguns, to plastic and biodegradable polymers for airsoft and paintball markers. Precision in manufacturing ensures consistent size and weight, contributing to accuracy and reliability during usage. For instance, steel projectiles exhibit high density and hardness, enabling deeper penetration, while plastic variants prioritize safety and environmental considerations in recreational activities.
The selection of a specific material influences performance characteristics such as range, impact force, and environmental impact. Historically, lead was prevalent due to its density and malleability. However, concerns regarding toxicity have prompted the development of alternative compositions, including steel, bismuth, and various polymer blends. This shift reflects a balance between performance requirements, regulatory constraints, and increasing environmental awareness. The benefits of these newer materials include reduced environmental contamination and enhanced safety in certain applications.