I found a box of old China Sport Norinco ammo for it and ran all 50 through it with no problem.
The sights shoot slightly low at 20ft it seemed, but straight. It has a good bark to it, definitly feels like it has some balls. I tried some more of the Yugo ammo with the same results, bad primers even after double strikes, although a couple went off the second time around. Xring gave me credit on one box so I picked up some more .223
Will try and get a pic and a short video of me putting a mag through it.