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1/25/2018 7:38:29 AM
Posted: 12/27/2005 12:36:21 PM EST
[Last Edit: 12/27/2005 12:37:19 PM EST by AtlantaFireman]
I bought a used "20" Bushmaster Heavy Service Rifle" barrel: stainless, 1:8 twist, unknown chamber (.223, 5.56, or Wylde). I checked headspace with my DPMS bolt, that I am hoping to use.

Bolt closes on a NOGO gauge, but does not close (by a long shot) on a FIELD gauge.

Safe to proceed with this barrel or not? What can I expect?
Link Posted: 12/27/2005 4:49:27 PM EST
Good to go.
Link Posted: 12/27/2005 4:52:52 PM EST
Your good to go. I had to toss my nogo guage and went with an individual micro'd set from Brownells.
Link Posted: 12/27/2005 7:38:18 PM EST
From what I read, all the military uses is a field.
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