mikr is right, I'd call ruger, also ask about your rifleing turn rate while ya have em on the phone. The chart we have been using has reported errors. I'd not trust it.
Thanks cajungeo--that one list has my preban as a postban--one call to a very friendly gal at Ruger gave me DOM confirmation (1986) , rate of twist-even the fact it left as a folder from the factory.
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