I have a German prewar "Zi-Di" rifle which is chambered in 6.5x52. The action looks like a Greifelt design (bolt handle well forward) and the rifle has a detachable box magazine, also marked 6.5x52.

Does anyone know what 6.5x52 cartridge fits this gun? I have tried the 6.5x52 Italian Carcano and it does not fit. It's too long for the magazine and won't even begin to fall into the chamber when I try to put in a cartridge manually. After some further research, I discovered that it might be the 6.5 Arisaka cartridge (used by the Brits in some prewar sporting rifles), but that cartridge is designated 6.5x50. Apparently the British called it the .256 British or some such.

From what I have read, it appears most Zi-Di rifles were built in 5.6x35 (euro near equivalent of .22 hornet). I haven't been able find anything on the 6.5x52.

Have sent an email to Ziegenhaus (still in business in Germany) and am awaiting a response.

many thanks