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1,000 rounds is awful quick, but if you shoot them hard and fast it can happen, barrel life of a machine gun can be as little as 150 rounds that is why crew served weapons come with an extra barrel. I let all of mine cool at leased 5 min between each 3 round string and I have alot more then 1,000 rounds through my 6.5x55 with no noticeable loss in accuracy even with my rather hot loads.
I would bet that the Ruger does not use the premium steel that my Sako barrel does but I would expect more then 1,000 rounds even from my Savages.
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