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BudsGunShop.com - Chambered in 556 NATO ?


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  • Chambered in 556 NATO ?

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    in Long Gun


  • Bud’d “details” says this Ruger 5820 is chambered in.223 Rem. The Ruger website says it is chambered in .223/556 NATO. Is it rated 556 NATO?


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  • Community Default Avatar
    by - Lifetime Points: 92020
    Chosen as Best Answer
  • George, the Ruger 5820's Barrel is actually stamped 5.56NATO/223 so it will fire both rounds just fine. Ruger knows their own firearms. Buds listing is not complete.

  • Community Default Avatar
    by - Lifetime Points: 29542
  • the barrel marking is 5.56NATO/223 so yes you can use both 223 and 5.56 NATO in it. You can contact Ruger to verify this at Telephone: 336-949-5200 / Fax: 336-949-5300 (Monday through Friday 8:00am - 6:00pm ET)

  • Community Default Avatar
    by - Lifetime Points: 7541
  • Hi George, Yes the barrel is stamped 5.56NATO/223 . You can use both 223 and 5.56 NATO in it. You can contact Ruger to verify this at Telephone: 336-949-5200 / Fax: 336-949-5300 (Monday through Friday 8:00am - 6:00pm ET)

  • Community Default Avatar
    by - Lifetime Points: 29542
  • the barrel marking is 5.56NATO/223 so yes you can use both 223 and 5.56 NATO in it. You can contact Ruger to verify this at Telephone: 336-949-5200 / Fax: 336-949-5300
    (Monday through Friday 8:00am - 6:00pm ET)

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