Bore Inspection

If you purchase a bore scope the best advice I can give is to look at a brand new custom barrel first so you will have something to compare with later. When looking at a used barrel, especially a factory barrel it can be quite alarming.

I had been used to using a bore light and thought that if everything was shinny and bright it was good. then I got the bore scope and was shocked how bad the bore looked.

As you shoot, periodically look at the barrel for signs of ware and if it starts to shoot bad inspect it before you clean it. You will soon be able to spot trouble because you know what to look for.

J E CUSTOM
 
but I worry about stubborn carbon grinding into the bore and never coming out so that's why I clean after every use at the range..
Old Rooster
The hard carbon ring pretty much only forms in the throat, many shooters, myself included, will give the throat area a short stoking with some JB bore paste or similar on a patch with Kroil to prevent the ring from forming without cleaning/stripping the barrel all the way down. If running something dirty like Reloder 33 I will clean for carbon fowling in the barrel more often ~20-30 shots and and copper after 40-50 rounds depending on the gun and what it likes.
 
scdogman,and and?
How did it look?
Impressed?
There are so many experienced shooters here and even though I have been shooting/reloading since the early 60's I feel like a novice compared to you folks.
Thanks to all
Old Rooster
 
Rooster, if you're already using a scope then you've probably already modified your cleaning methods to what works. Not sure why but I was under the impression you hadn't used a scope before... first time ever I didn't read everything!

Scoping the fan blades on turbines can be fun, especially when you find something interesting, like progressively shorter blades... on the same stage! Did you ever get a scope stuck? I did once, a brand new Olympus 6mm video scope. We played with that thing for 45 minutes, turning the blades one way a bit, then the other. Durn thing just flat refused to come loose. Supervisor said pull on it until something comes loose! So I did. Here comes the scope tube with no camera, lens or light source on the end! Oppsie! Strangely enough the lens part fell out as well and we got it out if the engine via the inspection port. I still have it, in fact! What a memento, eh? A $60,000 scope, chunked the second week we had it. Oly did good, tho, and replaced everything under warranty. Whew!
Cheers,
crkckr
 
I have a 28 nosler and wanted to see wear. I found some carbon ring buildup and it looks like wear and cracking. I will post pics later. Tool is easy to use.

 
I got my scope on Friday, and was surprised to see that I still have carbon & some copper in the barrel. This is a newer 224 Valkyrie barrel on a Bartlein blank, less than 100 rounds through it, and I cleaned thoroughly after both shooting sessions, and on this last cleaning I ran patches with Cu cleaner till they came out clear. Patches only, though, not a brush, so maybe I'll go back in with a brush tonight and see what happens. I enhanced the colors for emphasis. The carbon and copper are most prominent for the first 1/4 from the breech, tapers off rapidly after that.

I have to agree with others, for $50 this borescope is a great buy. It was easy to set up and easy to use, and not only will it help me assess my cleaning protocol, but like JE said, it'll be great to see how this barrel evolves with usage. By the way, JE, I sure appreciate your contributions on the forum. Note the scoring on the 3rd image - I use a carbon fiber rod through a quality guide so I don't think I could have done this - maybe when the rifling was cut?
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Picture of a 28 nosler
 

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I suppose I will need some guidance with this borescope stuff until I learn how to properly interpret what I am looking at. In this bore the brown is very dull. It is not shiny like the obvious copper in my other barrels. My question, is this rust?
Thanks

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126, I got the same pic in a new unfired Remington barrel. I thought it was rust as well. It cleaned up with a very light few passes with IOSSO bore cream on a patch.
 
126, I got the same pic in a new unfired Remington barrel. I thought it was rust as well. It cleaned up with a very light few passes with IOSSO bore cream on a patch.

This is a like new barrel from Carbon Six. Only has 7 rounds through it. Still in the break in process. Ran out of time the other day so didn't finish. Got curious today what a new barrel looks like inside so decided to stick my $50 in it and see. It's a fun tool to have laying around.

I also noticed what looked like chunks missing off of the lands in two spots. This is a button rifled barrel if that matters at all.
 
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