Honestly. If the majority of the ammo you shoot is steel cased, corrosive, 3rd world mil surplus... don't waste more than $150 on a generic CMV barrel. I built my 7.62x39 with a cheap barrel specific for this use. Burn it up and throw it away when I'm done.
I have my stainless steel, carbon fiber wrapped, barrel on my .308... besides a little NATO surplus, and a handful of Bubba's handloads, it has only had a healthy diet of Hornady match and FGMM.
I have a metric shit-ton of some red block communist, 7.62x51, steel cased, brown lacquered, garbage ammo (that I way over paid for, to a widow trying to make ends meet). I have a new rifle on the way, just for this ammo, because I'll never put it in my CF wrapped barrel.