I bought some of the above from a guy at a gun show. Head stamp was 10 and 53, copper wash steel case. I had 2 split cases in my M44 which I never had before with any milsurp b4. Glad I had my glasses on. BEWARE!

Think about it...what kind of quality control was there in Bulgaria in 1953? It must have been like slave labor... Take a head stamp guide with you before you buy...you pay your money, you take your chances...