I'm not familiar with the round, but I'm guessing the JDJ refers to hand cannon guru J.D. Jones? If so, J.D. lives about a mile from me and could probably supply it. Name of his "shop" (kinda like calling a .700 Nitro a "mouse gun"
) is SSK Industries, at 590 Woodvue Lane, Wintersville, OH - 43953. Phone is (740) 264-0176. They are also a major supplier of Corbon ammo. Hope this helps
.