1960s Bulgarian 7.92x57mm Ammo. 15 Rd box

This is stuff I purchased years ago, but realized I have way too much 8mm ammo that I'm never going to use, and since surplus has become so hard to find, and so expensive, I'm going to offer this up at below even the most expensive surplus. This is what I believe to be 178 grain FMJ.  This stuff was made in the early 60's in Bulgaria for both military and commercial use. this is Berdan primed, but unlike most Berdan casings with 2 flash holes, these only have one. The one drawback I've experienced with this is that there is a slight delay after pulling the trigger, but if you can control your flinch, it's accurate and I've yet to have an actual failure to fire. The brass cased stuff has more instances of this for whatever reason, and with the copper washed steel cases, it was much less frequent.  That being said, I am selling this as collectible ammo only, and it is your responsibility to decide if you want to risk firing this, or to pull it down for components for reloading (still che