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December 27, 2007
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The ugly bore below is not one of my bores, but those straight tracks are present in one of my 1894 rifles. My bore has good rifling. .32-40 DOM 1904.
I have cleaned the barrel well, but these lines seem unaffected. I thought perhaps they were somehow cut by an undersized bullet (but that would have to be a wonder-bullet to travel in such a straight line down the bore, and the lines are unbroken.) I figured maybe it was from a cleaning tool being shoved down to aid in removing lead.
I hadn’t seen other bores with these tracks until I came across this photo today. Without checking for certain, the photo’s tracks are the same width/depth as are my rifle’s tracks. Photo is of a ’73 .38 WCF.
What causes these tracks? Are they detrimental to the accuracy of the rifle? (I have yet to shoot this rifle. I know taking it out for a spin would answer this accuracy question.)
If they are just scratches in a leaded barrel, what is the best method/material for removing the lead? I have brushed the bore with threads from a “copper” sponge–didn’t seem to make much of a difference.
My attempts to photograph the tracks in my bore didn’t work out so well. They do not appear to be the equidistant sets as in the first photo, but they are.
January 24, 2013
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The only “straight lines” I see, is possibly the rifling; 6 lands/6 groves.
32-40 has a pretty slow twist 1:16
Bore looks pretty crusty though
January 24, 2013
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Ok the 32-40 pick just opened for me… lead/copper streaking?
May 2, 2009
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Those are forging lines just like you see on a receiver. I have seen them on 86’s with real nice bores.
Bob
WACA Life Member--- NRA Life Member---- Cody Firearms member since 1991 Researching the Winchester 1873's
Email: [email protected]
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