Thread: Bore Corrosion
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Old January 8, 2009, 01:34 AM   #2
DoctorXring
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Join Date: April 30, 2002
Location: The Republic of Texas
Posts: 392
Bore condition

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Frosted -- the bore looks similar in quality to "mirror" in respect
to condition except that it is not shiny. Has a dull appearance to it.
This is invariably due to lack of timely cleaning after the rifle has
been fired with corrosive primed ammunition. Bore has kind of a
sand blasted appearance.

Pitted -- this is an expansion of the frosting condition. The integrity
of the surface has now progressed to an eroded state. You will observe
"spots" in the bore that will not clean out.

Sewer -- bad state of pitting.


The problem with all of these bore conditions is that metal will strip
off of the bullet jacket as it traverses the bore. This will copper foul
the bore and accuracy will be impaired eventually. Cleaning the bore
is a (much) more tedious job than with a mirror condition bore.

Some rifles with poor condition bores due turn in respectable accuracy,
but this is more of an anomaly. Be wise. Avoid rifles with these kinds
of bore conditions if all possible.

dxr

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