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 Post subject: Teslong Borescope
PostPosted: Sat Jun 20, 2020 12:16 pm 

Joined: Thu Nov 17, 2005 6:16 pm
Posts: 2413
Location: Oregon
Anyone have any experience with this? Good or bad?


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 Post subject: Re: Teslong Borescope
PostPosted: Sat Jun 20, 2020 2:40 pm 

Joined: Thu Nov 04, 2004 1:56 pm
Posts: 2410
Location: Idaho
I have one. They are worth buying.


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 Post subject: Re: Teslong Borescope
PostPosted: Sat Jun 20, 2020 3:53 pm 

Joined: Fri Jan 31, 2020 9:09 pm
Posts: 47
Location: East, & a bit north, of Eden
I got one of the "semi-rigid" ones a few months ago & it was pretty poor for my use. It worked kind of OK on larger bores but was damned near impossible to get focused at all in a 22. Very, VERY frustrating. Also, the dimmer rheostat needs to go further to the dim side. The light is very bright & just about when the dazzling glare was about to go away it would go dark. The unit was returned.

Just got a rigid one that's miles better for about $30 more than the cheapies. The wand is bare steel so care is needed. There are hash marks every 1/4" or so to be able to locate where you're viewing, but the writing is so small it's hard to see even with a magnifying glass. Maybe my eyes aren't as good as they used to be, but...

The 26" length just reaches the muzzle on a short action with 24" barrel. Haven't tried it on long action yet but imagine it can be snuck up into the bolt area to get to the muzzle if the barrel is around 24". The handle is small enough in diameter. Being stiff it can be moved away just enough from the blurry image so there's focus. The mirror on both units screws in & out for focus, but the flexible cable changed it with each movement. The rheostat on the rigid unit still stops too soon going dimmer, but it's workable.

It turns out my old cleaning process works well for the most part. Some of the newer solvents are a vast improvement, so I'm adjusting to progress... Better living thru chemistry. GRRRRR.

The finish difference between factory barrels & a Shilen or a Hart is absolutely remarkable.

Still playing around figuring out its quirks, but it's a fun new toy. I was exploring the inside of new brass the other night. Lapua is amazing even on the inside.

If I can figure out how to post pictures I will soon have a series on carbon ring removal in a nasty old barrel. If it ever comes all the way clean.


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 Post subject: Re: Teslong Borescope
PostPosted: Sat Aug 01, 2020 11:02 am 

Joined: Sun Apr 07, 2019 4:50 pm
Posts: 164
I have one and I have no issues with focus. I think it is worth the $50 I paid for it.
Attachment:
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WIN_20200731_11_53_08_Pro.jpg [ 101.34 KiB | Viewed 198 times ]

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 Post subject: Re: Teslong Borescope
PostPosted: Sat Aug 01, 2020 5:35 pm 

Joined: Tue Mar 28, 2017 7:27 am
Posts: 588
What would you look for with it?


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 Post subject: Re: Teslong Borescope
PostPosted: Sun Aug 02, 2020 9:14 am 
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Joined: Mon Apr 16, 2012 1:59 pm
Posts: 1195
Location: Holland, MI
I used mine to monitor copper removal from a barrel. I purchased a used rifle that probably had $50 in scrap copper lining the barrel. :grin:

It's also nice to look for that "item" that is scratching your brass in the chamber, and look for cracking in the throat.


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 Post subject: Re: Teslong Borescope
PostPosted: Sun Aug 02, 2020 12:53 pm 

Joined: Sat Feb 13, 2016 10:16 am
Posts: 1281
I'm interested in it too, which would be better? The flexible 36 inch or the 26 inch rigid models ? Thinking to use my USB to plug into my laptop to view it, since its cheaper than buying the extras?

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 Post subject: Re: Teslong Borescope
PostPosted: Sun Aug 02, 2020 5:51 pm 

Joined: Sun Apr 07, 2019 4:50 pm
Posts: 164
Even the 36" flexible model is fairly stiff. That's the one I have and use it with a laptop without any inconvenience.

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 Post subject: Re: Teslong Borescope
PostPosted: Wed Aug 05, 2020 8:47 am 

Joined: Thu Nov 17, 2005 6:16 pm
Posts: 2413
Location: Oregon
Copper build up and carbon ring, throat erosion/cracking, chamber flaws, all kinds of good stuff to look for! I still havent even put mine down a rifle barrel yet, so much to do, so little time these days...I got the 36" flexible rod and as stated, it's still pretty stiff. Plus I have rifles with 30" barrels so the 26" wont really work for me...I use it on my smart phone, but I also have a tablet for a bigger screen if needed. The galaxy S10+ has a fairly nice big screen for a phone though, so that's what I'll be using it with anyway.


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