Ian
Notorious member
Purely academic for me, Doc. Several others had struggled with the concept and reported dismal results due to brittleness, but after briefly researching the problem I came upon a possible solution, contacted Rotometals, and they whipped up a test batch and sent me some ingots gratis. What I found was the small antimony addition made the alloy just malleable enough to engrave and hold the rifling without issue (solved the problems inside the gun) and held the bullets together just enough to perform well on medium game without disintegrating on bones. Some concessions need to be made on bullet design such as using WFN or TC bullets on deer, but the alloy "expands" enough to meet the legal criterion. One could also cast cup point bullets to further impress the wardens, though in truth if the alloy is deformed very much it still fractures.