Tornado brush and Damascus? Yes? No? Thoughts.

[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