I have a Yugo 8 MM Mauser that shoots well, this is what I have found. I have tried the Ecuadorian or Venezuelan ammo from South America, lots of duds and hang fires, not worth it unless almost free, price wise. The older Yugo ammo from the 1950's was ok in accuracy, but many primer ring bursts to the point that you could get a burn ring on the bolt face if you kept it up, reliable otherwise, had 2 boxes, won't buy anymore of it.
Tried German army late WW 2 war surplus, a few sticky bolt problems as it is lacquer coated steel cased, its ok otherwise. Italian made Egyptian contract, accuracy was so-so, not bad.
The Turkish ammo is what I have been using mostly, very accurate in my rifle, stiff kick and strong muzzle blast. The year 1931 had numerous primer bursts real bad. The 1947 stuff is the worst of them all in vintage batches. Anywhere from 50% to 60% cracked necks in some batches, about 25% cracked necks in other batches after firing. I have heard of some shooters finding the 1947 lots to have the bullets loose in the cartridge case before even shooting it, mine were tight, but that brass is so brittle. Other years of Turkish ammo is better, but lots of shooters have snapped it up, might be stuck with the 1947 stuff at this time, check the year stamped on the cartridge case. All the Turkish ammo I have used (490 rounds) have been 100% sure fire, and cleanly stored. The Turkish ammo uses cupro-nickel jacketing (silver colored), harder than copper, but does not fowl the barrel as much. Hope to try the newer Yugo surplus from the 1970's and 80's at the next gun show, heard it is good. Also the Rumanian, but I have never seen any of that stuff, supposedly it was snapped up in a hurry.
Hoping that Wolf will make some 8 MM mauser ammo, they are delaying due to the fact that there is so much cheap surplus ammo still available, but maybe in 3-5 years. Wolf shoots well in my 2 Russian Mosin Nagantsand non-corrosive. As usual with any surplus ammo, use black powder cleaner to clean out the salt from the barrel, then Hoppe #9 and let sit overnight to soak to loosen the copper and fowling, with the rifle in a horizontal position, then clean just like regular, the next day.
