Tornado brush and Damascus? Yes? No? Thoughts.

[Jerry Parise]

Originally Posted by Dean Romig

Drew, surely you’re not saying the barrel burst was caused by the cleaning method you mention?





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No, I don't think that Drew is saying the cause of the burst was the cleaning. The caption on the barrel burst picture states "Barrel burst as received". He cleaned the burst barrel when he received it.

[Dean Romig]

I see that but I also see circumferential scoring in the bores that I don't believe was caused by his cleaning.





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[Drew Hause]

The "circumferential scoring" is part of the normal boring process. Most of us would be alarmed viewing close ups of our bores

The previous burst damascus barrel, as received, before cleaning



Close up after cleaning



Damascus Parker



Syracuse Arms Co. Twist barrel, after cleaning, forcing cone to the left



A fluid steel barrel, after cleaning, with more prominent tooling marks

[Dean Romig]

Thanks Drew.





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[Mike of the Mountain]

Drew, those were cleaned with the Frontier pads?

[Drew Hause]

Not the Parker Mike, but the others with a Frontier Pad on a rod chucked in a drill, with Shooter's Choice MC #7.