The Teslong Borescope

The Teslong in use with my MacBook

I’ve owned a Hawkeye Borescope for about 15 years now. I got mine direct from the States when the dollar/pound exchange rate was quite favorable and even with VAT and import duty it cost me less than £500. Today, it would be nearer £750.

The Hawkeye is manufactured by the Gradient Lens Corporation who specialise in medical equipment. It’s a professional quality instrument

I just wouldn’t be without a borescope.  If you are a serious competition shooter it’s essential to know the condition of your barrel and the effectiveness of your cleaning regime.

Nothing wrong with this barrel – it just needs a good clean. In this condition it will not deliver maximum accuracy

It’s totally pointless traveling to a big shoot if your barrel is on its last legs – how many F Class shooters have had a barrel ‘go’ halfway through a weekend competition? 

You don’t want to see this in your barrel – though it’s best that you do see it!

The cost of a wasted weekend will more than pay for a borescope.  And, although £750 isn’t a trivial amount, it’s comparable to the cost of a new barrel and your borescope will last a damn sight longer!

Nonetheless, few shooters own a borescope and, when Lyman introduced a very cost effective ‘scope (see ) i.e. around £200 complete with monitor, I was convinced that most shooters would buy one. But, it didn’t happen.  Why?  Well, maybe £200 was still too much?

The Lyman was a decent attempt to provide a reasonably priced borescope and included a monitor – shown here with my Hawkeye for comparison

In all fairness, the Lyman wasn’t perfect but, it was good enough to see copper and powder-fouling and fire-cracking.  The picture wasn’t as good as a Hawkeye but for £200………

Well, if price was the issue with the Lyman, then Teslong have solved that one for you with a borescope that offers Hawkeye-like quality for a paltry £50!  Can this really be a useable borescope for that kind of money?  Honestly it is!  Even though I own the Hawkeye, I’ve still bought one – it stays near the lathe and is used to inspect freshly cut chambers before removing the barrel.  Its 36 inch flexible probe is ideal compared to the Hawkeye’s 17 inch rigid probe. (In fairness, Hawkeye do now make a shorty probe for lathe use).

How do they do it for the price?  There must be a catch surely?  Well, I haven’t found one.  I’ve been using mine regularly in less than ideal conditions without problem.

Here’s the Teslong’s probe – twice as long as the Hawkeye

So, what do we get for our £50?  The lens and mirror are attached to a 36 inch long flexible probe, which in turn connects via a quality five-pin plug to a 60 inch lead which terminates in a USB plug. 

The 60 inch USB lead to connect the probe to your chosen device – Android adapter supplied

This long lead is ideal for my purposes, allowing me to sit the MacBook on another bench well away from the lathe.  An adapter is supplied to connect the USB to an Android tablet or phone.  Unfortunately, there is no plug/adapter to use it with an iPhone or iPad though it will plug into an Apple Mac or MacBook via the USB port.  Two spare mirrors are also included in the kit. 

Close-up of the mirro/lens/light – two spare mirrors are provided in the kit

Even from my photo of the MacBook screen you can see how good the image is.  Honestly, this is a top quality bit of kit and the only downside is – it’s from China, so supplies have currently dried up.  However we do have a limited number on offer – which we ordered to take to the now cancelled Northern Shooting Show – for £50 each plus a fiver to cover postage.  If you’d like one, don’t delay –email  Paul Parkinson on  Paul will let you know how to pay etc.