New Low-Cost Teslong Borescope – We All Need One!

Now there’s a new, low-cost Teslong borescope. The NTG100-C has just been introduced and it combines portability – courtesy of a flexible probe – with low cost – it’s just $59.99. At this price, everyone can afford one…

You just connect it to your smartphone to use.

After all, so much time and effort is spent on trying to obtain the best accuracy from our airguns. So much of that is connected with the barrel and the pellets or slugs being used. People talk of “winning the barrel lottery” – or not.

In fact, I would say that interest in barrels and ammo is at an all-time high among serious airgunners!

So – to me – it makes perfect sense to explore and learn about what the INSIDE of our barrels looks like. There’s rifling to inspect and leading to see, among other things.

One example. Using a borescope can give you a real indication of when your barrel needs cleaning, rather than just guessing. Is that too much leading in the bore, or just enough? Use a borescope enough and you’ll find out…

Now I certainly do not know as much as I would like to about airgun bores, but I can see that these is definitely a lot to learn. In my view, we all need one for our air rifles!

HAM has featured stories about borescopes in the past. Here’s a link to one of them.

HAM Tester Doug Rogers uses a Hawkeye rigid borescope. This is a superb, made in the USA, instrument. It also is able to fit into .177 caliber barrels. It’s also expensive, as you might guess.

Doug inspects the barrel of every air rifle that he tests and finds this a very useful exercise.

I use a Teslong NTG500 rigid borescope. This makes it easy to produce photographs, whereas Doug’s Hawkeye model is primarily a visual use device.

The Teslong also is not thin enough to fit into .177 caliber barrels. But it goes up to .40 caliber and so covers most of the airguns we review. At $199.99 from Amazon, it’s also a whole lot cheaper.

One other issue with Teslong borescope range is that I find their product names confusing. They’re too similar and I struggle with separating the models. But the range of borescopes produced by the company is increasing fast and there’s multiple versions to choose from.

If you click on the Amazon link below, you’ll go to the NTG500 page. From there, it’s easy to click into the “Teslong Store” and see the others.

I’ll be very interested to hear your borescope-use experiences in the HAM Community. Hopefully we can build-up a body of information there that will help all airgunners…

BUY FROM AMAZON​

Teslong NTG500 Borescope​

The post New Low-Cost Teslong Borescope – We All Need One! appeared first on Hard Air Magazine.

 

[Joey 69]

View attachment 14741

Now there’s a new, low-cost Teslong borescope. The NTG100-C has just been introduced and it combines portability – courtesy of a flexible probe – with low cost – it’s just $59.99. At this price, everyone can afford one…

You just connect it to your smartphone to use.

After all, so much time and effort is spent on trying to obtain the best accuracy from our airguns. So much of that is connected with the barrel and the pellets or slugs being used. People talk of “winning the barrel lottery” – or not.

In fact, I would say that interest in barrels and ammo is at an all-time high among serious airgunners!

So – to me – it makes perfect sense to explore and learn about what the INSIDE of our barrels looks like. There’s rifling to inspect and leading to see, among other things.

One example. Using a borescope can give you a real indication of when your barrel needs cleaning, rather than just guessing. Is that too much leading in the bore, or just enough? Use a borescope enough and you’ll find out…

Now I certainly do not know as much as I would like to about airgun bores, but I can see that these is definitely a lot to learn. In my view, we all need one for our air rifles!

HAM has featured stories about borescopes in the past. Here’s a link to one of them.

HAM Tester Doug Rogers uses a Hawkeye rigid borescope. This is a superb, made in the USA, instrument. It also is able to fit into .177 caliber barrels. It’s also expensive, as you might guess.

Doug inspects the barrel of every air rifle that he tests and finds this a very useful exercise.

I use a Teslong NTG500 rigid borescope. This makes it easy to produce photographs, whereas Doug’s Hawkeye model is primarily a visual use device.

The Teslong also is not thin enough to fit into .177 caliber barrels. But it goes up to .40 caliber and so covers most of the airguns we review. At $199.99 from Amazon, it’s also a whole lot cheaper.

One other issue with Teslong borescope range is that I find their product names confusing. They’re too similar and I struggle with separating the models. But the range of borescopes produced by the company is increasing fast and there’s multiple versions to choose from.

If you click on the Amazon link below, you’ll go to the NTG500 page. From there, it’s easy to click into the “Teslong Store” and see the others.

I’ll be very interested to hear your borescope-use experiences in the HAM Community. Hopefully we can build-up a body of information there that will help all airgunners…

BUY FROM AMAZON​

Teslong NTG500 Borescope​

The post New Low-Cost Teslong Borescope – We All Need One! appeared first on Hard Air Magazine.

Sold, ordering now, Thanks.

 

[BenjeneerJohn]

Every Engineer has a Teslong at their desk. As does QA and our Machine Shop. They are a great way to see what is going on with the barrel. They are a very useful tool to see how the bore and chamber look.

Just a word of caution, they magnify everything! Don't get caught up with how a barrel looks vs how it shoots. We have seen barrels that don't look great, shoot verry well.

John

 

[Pumacarl]

It's not the money, it's all the extra work that knowing what my bore looks like is going to cost me.

 

[Madhatter]

I have a teslong bore scope but the only thing I used it for was to look into the bore of the regulator in my impact.

 

[Danman]

We have one at work for inspecting machinery and i measured its diameter, couldn't resist....wouldn't work on any .22cal or down. Drat now I have something else I "need" to buy!

 

[hameditor]

We have one at work for inspecting machinery and i measured its diameter, couldn't resist....wouldn't work on any .22cal or down. Drat now I have something else I "need" to buy!

Aw shucks, I'm sorry about that

 

[Solo1]

I just ordered the 450 that comes with the camera will let everyone know what i think

 

[hameditor]

I just ordered the 450 that comes with the camera will let everyone know what i think

Thanks for the update. I will be VERY interested to hear your opinion. To me, borescopes are still something of a voyage of exploration in the airgun world. But I am sure that there are big benefits to be gained - if only we could understand and share what we are doing with them.

 

[Solo1]

Thanks for the update. I will be VERY interested to hear your opinion. To me, borescopes are still something of a voyage of exploration in the airgun world. But I am sure that there are big benefits to be gained - if only we could understand and share what we are doing with them.

I’m hoping that i can find something in several barrels i have that make them shoot poorly. I guess we will see

 

[Semião]

I bought that Teslong borescope about a year now and it performs perfectly.

 

[PapaT]

Sure seems tempting

 

[Solo1]

I bought that Teslong borescope about a year now and it performs perfectly.

Have you detected anything beyond fouling? Any thing else you might have taken note of?

 

[Semião]

Have you detected anything beyond fouling? Any thing else you might have taken note of?

Aside from that nothing really, I have a FX impact M3 with the original 700mm barrel with close to 15k shots, I did polish it once I bought the borescope and it made a big difference visually and on POI. Did the same with the 800mm heavy liner with the same results.
Bottom line is I use the borescope for every gun maintenance and it's a great tool to have.

 

[BanjomanMI76]

Every Engineer has a Teslong at their desk. As does QA and our Machine Shop. They are a great way to see what is going on with the barrel. They are a very useful tool to see how the bore and chamber look.

Just a word of caution, they magnify everything! Don't get caught up with how a barrel looks vs how it shoots. We have seen barrels that don't look great, shoot verry well.

John

What do they use for .177 and .22 barrels, since the Teslong wont fit those calibers?
Corrected: Thanks Hameditor, I misunderstood.

 

[hameditor]

What do they use for .177 and .22 barrels, since the Teslong wont fit those calibers?

Teslong borescopes do fit .22 caliber barrels - but not those in .177 cal.

 

[BenjeneerJohn]

We have a optical bore scope. I cannot remember the brand but it mounts to a flashlight and an optical assembly. It works well for inspections but not nearly as nice as the Teslong.

John

 

[Solo1]

We have a optical bore scope. I cannot remember the brand but it mounts to a flashlight and an optical assembly. It works well for inspections but not nearly as nice as the Teslong.

John

John what kind of imperfections do you usually find when using your scope?

 

[BenjeneerJohn]

John what kind of imperfections do you usually find when using your scope?

Solo1 we are generally looking for burrs and poor machining. When you setup a barrel to first run on the CNC machine you want to make sure everything looks right before you take the time to test fire it. With the bore scope you can see that the chamber and lead-in are in the correct spot relative to the transfer port hole, and that the chamber tool is cutting well. You want the chamber to be smooth, with no large cutter marks. This is where you need to use caution with the bore scope. It magnifies the imperfections, and they can look terrible on a 34" wide screen monitor. In reality, the imperfections are so small it is pointless to worry about. We use a dental pick or mechanical pencil lead to see if you can feel the imperfections. If you can feel them, you have a problem. If the imperfection is filling with lead after you shoot it, you have a problem. If it just looks rough but shoots good, you don't have a real problem. If you look up machine surface finishes under a microscope and you will see what I am saying.

On the crown it is all about the burrs.

If we have bad accuracy we will inspect the whole barrel. A lot of time we find debris in the rifling. Give it a good clean and all is good.

On barrels that have been around a while, it is all about how clean they are. We check them for lead buildup and lead flakes. It is fun to look at the barrels before and after a good cleaning.

John

 

[hameditor]

@BenjeneerJohn Thanks for the excellent explanation! It's great to hear such advice freely given by a professional