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Scratches and marks in AR chambers..... What is excessive and what is OK?
#6
mdewitt71 Wrote:I see no cracks...
I have seen fire cracking throughout the rifling and chambers of a lot of older barrels in the past but, theses are scratches and nicks in the chamber neck & throat.
The features are likely not fire cracking. I included "cracks" to help widen the scope of investigation.

The images do, however, suggest that there are voids in the steel that were uncovered as it was cut. The only one I can positively attribute to tooling is the last one that shows an obvious scratch.

That is why I hope that someone with experience in inspecting machined parts or metallurgy can give us a reading.

If the features are indeed voids or inclusions, then there could be a safety issue.
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Scratches and marks in AR chambers..... What is excessive and what is OK? - by JASmith - 08-23-2018, 02:41 PM

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