1.1 This specification covers critical characteristics of low velocity resilient material projectiles (herein referred to as LVRM projectiles) made of a resilient material, and shall have a diameter no smaller than 20 mm (0.7874 in) and no This specification covers critical characteristics of low velocity resilient material projectiles made from a resilient material. Material diameter, shape, projectile hardness, and weight shall conform to the dimensions indicated in this specification.