Fishing sinker weight acting as barbs. Claw sinkers are used in surf fishing on sandy bottoms with strong currents, mainly to prevent the sinker from getting carried off with the current. Upon casting a claw sinker, the line is briefly tugged so that the claws will dig themselves into the sand, allowing the rig to stay in place. An ideal material for a fishing sinker is environmentally acceptable, cheap and dense. Density is desirable as weights must be as small as possible, in order to minimize visual cues which could drive fish away from a fishing operation. In ancient times as well
Plastic bullet available in .357/.38/9 mm, .44, and .45 calibers, and are designed for use in handguns, primarily revolvers, as the flat nose of the bullet does not feed well in most magazine fed actions. The propulsion is provided only by the primer, and the slow moving plastic bullets may be captured undamaged and reused numerous times if a suitable backstop is used. For use in revolvers, .38 Special and .44 Special versions also include plastic cases, which can be primed and de-primed by hand with minimal tools. For other calibers, standard brass cases are used. Plastic bullet A plastic bullet or