I have done heavy barreled 7.62x39 AKs for years. I have one with a 308 bore x39 with a match barrel that will shot under a half inch group at 100 yards. if you know the exact range it will do fine way out but you better know the range. I have take prairie dogs out past 500 yards but you better know the range an scope. at 300 yards with the scope dialed in it will do as well as many good 308,s but th wind needs to be nill. 150 grainers do very well but again know the range.
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