After doing a quick search and going through the first few pages, I didn't see anything related to this, so I figured I would make a post about it. Has anyone here considered casting entirely polymer boolits? Not just polymer tipped, but full polymer boolits, like the high density polymer ones some companies are offering now. Is this something that would for sure have to be injection molded, or is it possible to cast a high-density polymer using traditional methods? I'm thinking something like the hard outer container of batteries that are used to house harsh chemicals, or something of similar weight that would result with a somewhat similar weights to traditional boolits without having to have some HUGE boolit that would make any of the benefits go out the window.
I noticed a few of these rounds are actually polymer-coated copper boolits instead of pure polymer, but just figured I would drop a thread in here and see if anyone has thought about this, or has any insight as to if it's possible or practical to research further.