January 29th, 2020

New WiFi and Rigid Teslong Borescopes Reviewed

Teslong endoscope borescope WiFi Android Ios camera video

Teslong Borescopes Update — WiFi and Rigid Rod Versions
Product Report by F-Class John
Not more than a few months after the Teslong corded borescope hit the market to massive applause they’ve released a cordless WiFi-enabled corded version as well as a rigid rod model — two new models with important new features/functionality. When I originally reviewed the Teslong borescope I was blown away with the value, clarity, and ease of use. SEE Review HERE. That original Teslong really was a game changer in the borescope market. The large number of forum threads springing up since the Teslong release shows that that digital borescopes have finally found a large and enthusiastic customer base.

IMPORTANT: Guys — Watch the Videos!!! John does a great job showing the set-up and use of these Borescopes. You really need to WATCH THE VIDEOS! They show much more than we can illustrate with still images.

Teslong Rigid Borescope

Teslong WiFi Borescope

Teslong Basic Borescope

NOTE: The WiFi Teslong Borescope can also be ordered for $74.99 from the Teslong Webstore.

WiFi Teslong Works with SmartPhones and Tablets

Despite all the love people have shown for the original, plug-in Teslong borescope, one common complaint was that it could not be used with smartphones or small tablets. With that in mind, Teslong surprised the market with the release of a cordless WiFi version that works with just about any device that has a WiFi connection. The new WiFi unit, which is in very high demand, costs around $75, just $25 more than the original plug-in version. NOTE –YES this WiFi unit DOES work with both iOS (Apple) and Android smartphones and tablets. However, you may wish to try a couple different Apps.

Teslong endoscope borescope WiFi Android Ios camera video

To use the WiFi Teslong, simply download Teslong’s viewer App, turn the unit on and connect to the Teslong WiFi in your device settings. While it does take a couple steps to connect each time, you are rewarded with a cordless version that can be used at home or the range equally well. Watch the video and you can see how the Wifi unit is set up and how it is used to inspect both a barrel and a sizing die. Do watch the video — it explains all. Along with live video feed, the WiFi control handle has a button to record still images.

Teslong endoscope borescope WiFi Android Ios camera video

Important — some guys had initial problems getting the WiFi image to display on their smartphones but that was normally just a software configuration issue. If you are patient, and follow the instructions, you should be fine. Some older guys had to enlist the aid of a 10-year-old grandkid. Note, as of 1/29/2020, the WiFi Version is temporarily out of stock on Amazon, but it can be ordered for $74.99 from the Teslong Webstore.

Teslong endoscope borescope WiFi Android Ios camera video

New Teslong Rigid Rod Borescope

Along with the WiFi version, Teslong has also released a borescope with the lens mounted on the end of a rigid metal shaft — a configuration similar to classic optical borescopes such as the Hawkeye. This new “shafty” Teslong has the same electro-optical sensors, connectors, and adjustable light as the original Teslong. However, this new rigid rig now uses a solid rod instead of a flexible cable. Having a solid rod makes using the unit much easier since you’re not fighting the cable. The rod also makes rotating the unit inside the bore more intuitive as it lacks the cable spring back of the flexible version.

Teslong endoscope borescope WiFi Android Ios camera video

Located on the borescope is an inch scale allowing the user to easily to measure how far into the bore they’ve gone for easy identification of any issues later. The whole unit comes in a nice heavy-duty cardboard tube that makes it easy to store and I can see it lasting as long as the unit itself.

Why choose the rigid Teslong? Importantly, the lack of a tethered cord allows you to rotate the unit more easily inside the barrel. Compared to the original corded Teslong, I did find that running the rigid borescope down the barrel without the mirror provided a larger view. That may be beneficial to some users. Overall, the optical clarity and definition remain excellent — certainly on par with the original unit.

Teslong endoscope borescope WiFi Android Ios camera video

General Teslong Borescope User Tips
The new Wifi and Rigid Teslong borescope share some basic features with the original plug-in, corded Teslong. All three devices feature a mirror on the end that screws on and has a jam nut to keep it in place and can be adjusted for focal length based on the caliber and they’re now including several extras in case of damage or loss. While they’ve always been good about replacing them free of charge there is a wait time, so the inclusion of extras is a nice bonus.

SUMMARY — Both WiFi and Rigid Teslong Borescopes Perform Well, Are Great Values
Overall these two new units are great additions to Teslong’s lineup giving users two great units to choose from. While most folks may gravitate to the WiFi version, I think there’s room for all three models (WiFi, Corded Plug-in, Rigid Plug-in).

Many people may find the corded or rigid versions more practical for around the house where they don’t necessarily need the cordless version and don’t want to worry about keeping it charged all the time. For any range use or out of town matches the WiFi with its smaller footprint and ability to work with any electronic device will probably make more sense and will help justify the additional cost. In the end, the amazing thing is that no matter which version you choose you’ll have a great borescope that will help improve your shooting.

Permalink - Articles, Gear Review, Optics, Tech Tip 4 Comments »
January 29th, 2020

The Dummy Round — Why You Need One for Chambering

Gre Tannel GreTan, Gre-Tan Rifles dummy round chambering gunsmith reamer chamber

How and Why to Create a Dummy Round
When you have a new custom rifle built, or a new barrel fitted to an existing rifle, it makes sense to create a dummy round. This should have your preferred brass and bullet types, with the bullet positioned at optimal seating depth. A proper dummy round helps the gunsmith set the freebore correctly for your cartridge, and also ensure the proper chamber dimensions.

Respected machinist, tool-maker, and gunsmith Greg Tannel of Gre-Tan Rifles explains: “I use the dummy round as a gauge to finish cut the neck diameter and throat length and diameter so you have [optimal] clearance on the loaded neck and the ogive of the bullet just touches the rifling.” He recommends setting bullet so the full diameter is just forward of the case’s neck-shoulder junction. “From there”, Greg says, “I can build you the chamber you want… with all the proper clearances”.

Greg Tannel has created a very helpful video showing how to create a dummy round. Greg explains how to measure and assemble the dummy and how it will be used during the barrel chambering process. Greg notes — the dummy round should have NO Primer and No powder. We strongly recommend that every rifle shooter watch this video. Even if you won’t need a new barrel any time soon, you can learn important things about freebore, leade, and chamber geometry.

This has been a very popular video, with 244,000 views. Here are actual YouTube comments:

That is the best explanation I’ve ever seen. Thank you sir. — P. Pablo

Nice video. You do a very good job of making this easy for new reloaders to understand. I sure wish things like this were available when I started reloading and having custom rifles built. Once again, great job, and your work speaks for itself. — Brandon K.

Beautiful job explaining chambering clearances. — D. Giorgi

Another Cool Tool — The Stub Gauge

When you have your gunsmith chamber your barrel, you can also have him create a Stub Gauge, i.e. a cast-off barrel section chambered like your actual barrel. The stub gauge lets you measure the original length to lands and freebore when your barrel was new. This gives you a baseline to accurately assess how far your throat erodes with use. Of course, as the throat wears, to get true length-to-lands dimension, you need take your measurement using your actual barrel. The barrel stub gauge helps you set the initial bullet seating depth. Seating depth is then adjusted accordingly, based on observed throat erosion, or your preferred seating depth.

Stub Gauge Gunsmithing chamber gage model barrel

Permalink Gunsmithing, Tech Tip No Comments »
January 29th, 2020

Jumbo Playing Card Targets — FREE to Download

NRA Playing Card targets

With the NRA Convention coming up next week, we thought we’d provide some cool targets, courtesy of the NRA. The NRA Blog has published a nice set of super-sized playing card targets. These boast a variety of aiming points (large and small) so they work well for rifles as well as pistols. On the Queen of Diamonds, aim for the large bull-style designs in the “red zone” or aim for the smaller dots on the periphery. For a real challenge, try to shoot each one of the 26 small red diamonds in the curved, central white stripes.

On the Five of Clubs target, you can aim for the smaller club symbols, or shoot for the orange, purple, and green “dripping paint” bulls in the large, central club. The Ace of Spades target offers a colored bullseye in the center, plus a very small bullseye in the letter “C”. That should provide extra challenge for those of you with very accurate rifles. Enjoy these targets.


Click Any Image to Download Printable PDF Target:

NRA Playing Card target NRA Playing Card target
NRA Playing Card target NRA Playing Card target
Permalink Shooting Skills, Tactical No Comments »