Seen a few threads of people spitballing when I googled, but not much on anyone actually trying something like this. Closest I saw was .44 BGM, which used a 45mm case. Figure before I go naming this one (which I do intend to use in the next project rifle after my .357 Mag project, and have made a dummy of), I should ask and make sure that a roughly 10.9x51 wildcat doesn’t already exist.
