For those who have not a Liberty Arms' SP-50, fear not!
JARD Inc. has confirmed they plan to offer their forthcoming J11 in .50BMG!
For how practical this is as a shell-loading single-shot option out there, I personally believe pricing will have a lot to do with its ultimate market viability, although if previous products are any standard to judge off of, then I think JARD is uniquely positioned to do well with this product. Opinions?