Get a bigger bang out of shooting with targets that explode! These consist of two inert components that, when mixed, blow up if impacted by a high-velocity projectile. Easy to mix and use, they won’t go off if dropped or when set on fire. It usually takes at least a 40-gr. bullet with a velocity of 2,200 fps or more to detonate. Don’t transport or sell mixed components. Mixed components are considered explosive material and local, state and federal explosives regulations apply. Check local laws before ordering. Per 3.