I've never done any reloading so I apologize if this is a stupid question but I recently read about a guy that melted the lead out of a fmj and filled the copper jacket with epoxy. He claimed that an epoxy 45acp left the muzzle at 2200fps. Iam curious if any reloaders here have ever tried such a thing. Or any other experimental cartridges. What if you could center a steel rod in a copper jacketed 44mag for example and fill rest with epoxy. Would you end up with a super fast and light round that might penetrate more steel than a standard 44? As I said I have no experience.with this sort of thing so for all I know you can by these over the counter. Or maybe you could cast an epoxy bullet without a metel jacket. What do you think?