Bore Scope for .177 air gun

[bearbar]

I was just asking if anyone found a good bore scope for the .177. I would like one with a side view mirror.
I tried the ones listed below from Amazon and none of these would work with the side view mirror.
I do not want to pay much more than $250.00.
Any help would be apricated.

Vividia GB-460 USB Digital Manual Focus Gun Barrel Borescope Endoscope Videoscope Inspection Camera with 4mm Diameter and 24" (60 cm) Long Insertion Tube (Without WiFi Box) for PC Mac Android Devices​

Wireless Rifle Borescope, 0.177inch Rifle Bore Scope NIDAGE Barrel Gun Endoscope with 3.28ft Cable and Side View Mirror for Bore Cleaning Inspections​

0.15 Inch Industrial Endoscope Camera with 6 Light Zealtron Borescope Inspection Camera IP67 Waterproof Snake Sewer Camera with 4.5" IPS Screen 32GB Card, Travel Case​

 

[Rawroots]

You probably already know this , i also hoped that a cheap one thru amazon would work, it was almost useless but playing with indirect lighting at opposite end of barrel made it usefull. Just thought I'd share.

 

[Airgun-hobbyist]

I have had a few bore scopes, though sightly bigger diameter, that I have to modify the periscope attachment to focus them in. I use a wrap or two of clear box tape to move the mirror out. Would you be able to make a similar periscope in similar fashion?

 

[bigHUN]

I have a borescope from amazon as well, but the focusing is useless for .25, maybe for some duct work in the future...

 

[Geezerhood]

You probably already know this , i also hoped that a cheap one thru amazon would work, it was almost useless but playing with indirect lighting at opposite end of barrel made it usefull. Just thought I'd share.

I don't like the way the image looks using the built in light on bore scopes. Too harsh and with too much reflection. Even the high resolution Teslong looks significantly better with reduced brightness and indirect light. Sadly the Teslong only works with 20 cal and larger. What has worked for me is a fairly long lighted knitting needle that I borrowed from my wife. I will sometimes add some translucent tape over the light to diffuse it even more for less glare. This #6 size knitting needle set is 0.16x" thick and just shy of 12" long which allows you to illuminate a 24" plus barrel, as long as you have full access to the chamber area as well as the muzzle crown which requires removing the barrel for most guns. Having the lighted end of the needle farther away from the lens seems to work better than right next to it.

There might be other ways to provide a separate light source like a long fiber optic light of some kind.