The Wear and Damage of Shotgun Barrels with Iron and Nickel Pellets of Various Hardness

摘要

A second series of tests is described in which the wear and damage to the barrels of shotguns, from which iron, nickel and lead pellets were fired, was measured. As expected both the wear of the bore and the deformation of the barrel at the choke were less when soft nickel and soft iron pellets were fired than has been the case with harder pellets. Nevertheless both types of damage were still of an appreciable magnitude, indicating that these materials are not suitable for the manufacture of non-toxic pellets to replace lead. The results suggest that there is a definite relationship between the two types of damage and the relative hardnesses of the pellets and the barrel. (Author)