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Old January 8, 2013, 04:25 PM   #8
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Join Date: September 9, 2008
Location: Woooooshington
Posts: 1,797
No idea if it helps anything but I see no evidence that it's hurt.
Interesting Brian. Chances are that it would make a otherwise standard production chamber a little easier to clean, with no negative side effects that come to mind.

I've seen production chambers that are loaded with micro chatter marks and tooling scars when viewed with under bright light and a magnifying glass... and I've seen benchrest chambers that are lap finished to 0.4 ~ 0.1 Ra (μm), and when viewed with a 24X borescope look like a very fine grit, mirror finish polishing job. Blackstar finished barrels are even smoother than that. Take a look at the before and after.

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