I realize this is an ancient thread, but things have been slow over here for a while. Since Tokarev has been brought up, I will mention that I have converted a carbine to 7.62x25. Not much to it and everything is carbine spec. I shoot about any .308 bullet profile I want as long as I don’t exceed 30-carbine OAL. It feeds, chambers and ejects flawlessly and can be hand loaded to 30-carbine performance.