Does This Look Like Pitting?

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gord1986

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So I just ordered a bore scope from Amazon. Its great, as before my only method for bore inspection was to look down the muzzle with a flash light at the other end.

Needless to say I have been inspecting all of my firearms. My only problem that is I am not entirely sure if this is pitting or just fouling. I am new to scrutinizing bores with a borescope. Can anyone with more experience tell me if this is an issue or just fouling that a good cleaning can remove?

Also, the lands are nice and shiny and the grooves in this spot appear to be black. but the grooves in other areas of the bore seem to shine like the lands do in this photo.

Thanks!

204156271_1613204522222369_6347848165503194274_n.jpg
 
Thats not pitting.there is carbon and some nasty deposit like copper sometimes deposits rough close to the chamber in a couple of my rifles. But its the wrong colour is your borecam black and white?
 
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That looks more like a dull or soft cutter was used to cut the rifling.

If it were pitting, the lands would be pitted as well. They aren't.

That rifle might shoot well, but IMHO, it's a fouler.
 
bearhunter said:
That looks more like a dull or soft cutter was used to cut the rifling.

If it were pitting, the lands would be pitted as well. They aren't.

That rifle might shoot well, but IMHO, it's a fouler.
Click to expand...

Thanks for the input. I am not sure how well it shoots TBH. I haven't owned it long and haven't put it to paper yet. Any idea why some sections of rifling are shiny and other are black like this is?
 
Is a wonderful or awful thing about bore scopes - 99% of us have never seen what our bores look like up close. So do not know what good or bad means. I am fortunate enough to have a new / never installed Schultz and Larsen Palma Barrel to clean and look through with bore scope - then multiple other rifles with very few or a lot of rounds down the bore. What you get to see is interesting - especially when stacked up with what you know about the rifle's accuracy. From "poor" to "good enough" to "good" to "premium" and so on - might have a lot more to do with what you see or do not see at the leade, than half way down the bore - the muzzle as well - where it all "lets go" of the bullet. Always a downer to discover what you think is "clean" is not even close. Wonderful world of bore scopes - sometimes better to not know what is in there....
 
gord1986 said:
Thanks for the input. I am not sure how well it shoots TBH. I haven't owned it long and haven't put it to paper yet. Any idea why some sections of rifling are shiny and other are black like this is?
Click to expand...

I don't know where that barrel came from but it shouldn't have gotten past quality control.

If it's from a wartime milsurp, made under stressful conditions, that's a different story.

I can remember a time when more than a few Ruger firearms had similar barrel issues.

If you're asking why the lands are nice and shiny, while the grooves look scratched/scraped? That's because the rifling in that barrel was cut, rather than hammer forged.

The bore, or the top of the lands was cut and polished before the rifling was cut. The rifling cutter was either dull, pushed through to fast or wasn't lubricated properly at the time. Maybe all three.
 
I would use jb bore cleaner on that barrel unless you want to spend a lot of time with a bronze brush it will probably turn out fine. The patchiness and discolouration don't look like bore damage to me
 
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grauhanen said:
Can you see this below?

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Yes... and when I replied using "reply with quote" the information about the picture URL is there... so I went back to your original post and used the "reply with quote" and the picture URL info is there... That's so weird...

That looks like a manufacturing flaw to me...
 
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gord1986 said:
So I just ordered a bore scope from Amazon. Its great, as before my only method for bore inspection was to look down the muzzle with a flash light at the other end.

Needless to say I have been inspecting all of my firearms. My only problem that is I am not entirely sure if this is pitting or just fouling. I am new to scrutinizing bores with a borescope. Can anyone with more experience tell me if this is an issue or just fouling that a good cleaning can remove?

Also, the lands are nice and shiny and the grooves in this spot appear to be black. but the grooves in other areas of the bore seem to shine like the lands do in this photo.

Thanks!

204156271_1613204522222369_6347848165503194274_n.jpg
Click to expand...

and the picture url info shows up when I "reply with quote" until I post my response and nothing shows up...
 
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