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
Wax bullet they are most commonly used in revolvers and other manually cycled firearms. Specially designed cartridges and conversion units can be combined to convert automatic firearms into wax bullet firing guns, and these are used for training police and military. In the past, wax bullets were used by illusionists for illusions involving firearms, such as the bullet catch. This practice goes back at least as far as Jean Eugène Robert-Houdin, who used hollow wax bullets colored to resemble lead balls. When placed on a charge of gunpowder, the wax bullet would disintegrate upon firing. Wax bullets are not normally lethal, and