another option that i have read about but have no actual experience with is whats called a chamber adapter, supposedly will take any .308 nato caliber rifle and covert it to the 7.62x39 round...it seems like a good idea to be able to take a bolt style rifle that you are more familiar with and trust and use it for the 7.62x39
here is the web site
http://www.mcace.com/
anybody used one of these before?