Borecope Techniques and Interpretation

This thread is largely due to @General RE LEE posting some borescope pics.

What are some techniques you all use and how do you interpret what you see in your barrel/chamber. I refer primarily to the Teslong type borescope, as it is likely what most use.

I posted on his thread that sometimes running the scope in from both the chamber and muzzle will give different lighting that may reveal a shadow, when one thought it may be a carbon ring. Also that rough or irregularities in the edge of an apparent carbon ring show that it is more likely just that instead of a clean sharp edge that may be indicative of a shadow.

Let's all learn together. What are some tips and techniques that you have found to be helpful?

Tiny Tim said:

This thread is largely due to @General RE LEE posting some borescope pics.

What are some techniques you all use and how do you interpret what you see in your barrel/chamber. I refer primarily to the Teslong type borescope, as it is likely what most use.

I posted on his thread that sometimes running the scope in from both the chamber and muzzle will give different lighting that may reveal a shadow, when one thought it may be a carbon ring. Also that rough or irregularities in the edge of an apparent carbon ring show that it is more likely just that instead of a clean sharp edge that may be indicative of a shadow.

Let's all learn together. What are some tips and techniques that you have found to be helpful?

Click to expand...

Your post doesn't seem to be getting any mileage. I doubt that I can help, but things I notice.
First with a flexible Teslong, no clue on the rigid model, the light source is right at the mirror, and being flexible tubing, it will always lay on the bottom of the bore.
So unless you have a way to bush the tubing to close to the dia of the bore, the pic you see is always going to be skewed to some degree. If the mirror is facing down, bright and clear, too bright at times, looking clean even if it may not be. As you rotate it, the pics of sides can look shaded, just because of the angle you are viewing at. Then you get a decent look at the top of the bore, this all assuming the rifle is sitting level when you start.
With my Teslong, I now come in muzzle only, with bolt in, but first pay attn to the position of the mirror, run it in all the way w/o turning it. Then pull it out and rotate one way say 1/3 of a turn, run it back in, I do this till I am at 180 deg from start point. Bring it back to start point, do the same going the other way. About 6 times in and out.

If I want a better picture of what is going on, I break out my Hawkeye, with it's own set of uncomfortable issues using it.

I have been shooting RL16 and H4895 exclusively for over 7 yrs, I got so sick of the dreaded carbon ring, today I remove all doubt before ever scoping. I let patches of C4 sit in the area, then chuck up a portable rod with the next size up bronze brush and spin it with a drill.
I have been shooting 22LR primarily, and crappy powders combined with lube yields carbon quickly, I do the same with these barrels, spin the ring out.

What borescope and/or apps are you all using

Tiny Tim said:

What borescope and/or apps are you all using

Click to expand...

I use Teslong flexible wifi. I paid extra at that time for a set of mirros up to .50 cal. They help a lot. I also paid extra and have a special cable for direct connection to laptop/PC. I use MO-View on iPhone and the native microsoft camera on my laptop/PC
I like the flex because I can take it to me to gunshows.

asd9055 said:

I use Teslong flexible wifi. I paid extra at that time for a set of mirros up to .50 cal. They help a lot. I also paid extra and have a special cable for direct connection to laptop/PC. I use MO-View on iPhone and the native microsoft camera on my laptop/PC
I like the flex because I can take it to me to gunshows.

Click to expand...

I use the Teslong Flex as well. Came with two extra mirrors a few years ago. Use paid version of endoscopy app. Used the free version but it is like a trial and had to un-install and re-install to continue using. One time $9.00 fee. Seems to work for my needs.

Tiny Tim said:

I use the Teslong Flex as well. Came with two extra mirrors a few years ago. Use paid version of endoscopy app. Used the free version but it is like a trial and had to un-install and re-install to continue using. One time $9.00 fee. Seems to work for my needs.

Click to expand...

What's the name of the app

milo-2 said:

With my Teslong, I now come in muzzle only, with bolt in, but first pay attn to the position of the mirror, run it in all the way w/o turning it. Then pull it out and rotate one way say 1/3 of a turn, run it back in, I do this till I am at 180 deg from start point. Bring it back to start point, do the same going the other way. About 6 times in and ou

Click to expand...

What advantages have you found coming in from the muzzle, and also why do you leave the bolt in? I'm going to try this - it'll be different for me.
I've had a Teslong since they became available but have always went in from the chamber. The shadows drive me nuts trying to figure out what I'm looking at.
Thanks to the OP for posting and for your response. I'm always willing to try something different if it gives you a warmer fuzzy feeling.

asd9055 said:

What's the name of the app

Click to expand...

Pro USB Edoscope camera App Unlimited

This site needs a section Titled, "Bore Scope Pictures/Videos", which would be a great teaching and learning studio.

cowboy said:

What advantages have you found coming in from the muzzle, and also why do you leave the bolt in? I'm going to try this - it'll be different for me.
I've had a Teslong since they became available but have always went in from the chamber. The shadows drive me nuts trying to figure out what I'm looking at.
Thanks to the OP for posting and for your response. I'm always willing to try something different if it gives you a warmer fuzzy feeling.

Click to expand...

I've always gone in from the muzzle without the bolt in to see the chamber, never thought of going in the other way Can't wait to try it the other way Thank you!

TennJed said:

I've always gone in from the muzzle without the bolt in to see the chamber, never thought of going in the other way Can't wait to try it the other way Thank you!

Click to expand...

If I need to see the chamber I put in the largest mirror that would fit, and go from bolt side

For the larger calibers you can use orings on your Teslong to help w/ keeping it centered.

TennJed said:

I've always gone in from the muzzle without the bolt in to see the chamber, never thought of going in the other way Can't wait to try it the other way Thank you!

Click to expand...

Just make sure you use a bore guide. Makes things a lot easier and smoother plus my personal opinion is it's easy to manipulate your bore scope.

cowboy said:

Just make sure you use a bore guide. Makes things a lot easier and smoother plus my personal opinion is it's easy to manipulate your bore scope.

Click to expand...

Thank you