Roger,

Thanks for the article. I note he says the No. 3 actions and earlier were difficult due to the thread, while the No.4 and later were easier. True or not? Anyone who knows.

I did not know of the 7.62x25 cartridge? What sorts of Eastern bloc firearms were these used in? SMGs?

I note also the article mentioned the mags for the auther fed fine for up to five cartridges. Again that would be a project killer for me if mags greater than five rounds could not be used.