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Click the button below to add the RX308 27" .308 Cal 1.20" OD 1:8 Twist Turned BBL Blank to your wish list.

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RX308 27" .308 Cal 1.20" OD 1:8 Twist Turned BBL Blank


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Product Description

  • Caliber- .308/7.62
  • Twist Rate- 1:8
  • Length- 27"
  • Profile- Turned barrel blank
  • Steel Type- 4140
  • Weight- 9.00lbs

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Product Reviews

  1. Barrel Blank 5 Star Review

    Posted by on 13th Apr 2021

    Great quality barrel blank. I am a repeat customer of GMB, they are the best !

  2. Consistent and Accurate 5 Star Review

    Posted by on 11th Apr 2021

    Have used a few of these. Made several great blackouts. Most recently turned one for a Galil in 300bo. Getting 1.5" groups at 100 which is awesome for an AK. The ARs usually shoot .75" at 100. If you do your part these barrels shoot all day.

  3. As good as anything out there 5 Star Review

    Posted by on 19th Nov 2014

    I have personally purchased several of these blanks for 300 blackout barrels and the accuracy is fantastic.

  4. 308 gunsmith barrel blank 5 Star Review

    Posted by on 5th Mar 2014

    I have been using Green Mtn. blanks for number of projects. I slug the bore when I get them and they are always exactly what they say they are, bores are smooth and uniform. All rifles I have built using these are very accurate. these blanks are turned prior to button rifling which keeps them more uniform than if they were rifled after contouring or just rifled when rough. these are low in cost but the quality is worth much more. You can turn them to whatever taper you want.

  5. Shoots great 5 Star Review

    Posted by on 15th Jan 2014

    Used it to build a 300 win mag on a mauser action, Shoots under 5" at 500 yards