Wish I could say the same, I had a 20% failure to fire rate yesterday. It's why I only shot 10 rounds out of my K98, 2 were duds. These rounds came on stripper clips out of a sealed box of Yugo surplus I got when I bought the rifle.
Accuracy of the 8 that did fire wasn't bad, about 3.5-4 MOA - which is about what one can expect from a RC K98 using surplus. I may try it with Prvi Partizan ammo, if I can ever find any.....![]()
Are you sure that was Yugo ammo? Yugo 8mm Mauser does not generally come on stripper clips. Unless its earlier than 53.
My guess is it's Czech or Romanian. Was it green an lacquered? Or Czech could be brass.
Or if your positive it was Yugo... could be this stuff:

If so... it's probably from the known bad batches. Yugo ammo has a period around 50-52 which has a high number of duds and hang fires in certain codes. Other stuff is excellent.
I had sub 1 inch groups with 54, it was spectacular. Love that ammo.