Bob Bowman told me he has about 1K inert rounds. the projo needs to be pulled and then a bushing soldered in to hold a 50 BMG primer, then reload. I'm sure this will be the only game in town. I spent years looking for DShK ammo. Ended up buying rounds where the projo and power was pulled, or a primed empty case. My understanding, regulations prevent import of Russian large caliber ammo.