USB Borescope from Amazon

[waldo1979]

Thought i'd post some pictures of the $18.50 USB borescope available from amazon:
http://amzn.com/B00N4L5N4A

It has LEDs that light the camera. There is a wheel adjustment for the LED brightness. I find that shining a flash light down the muzzle end gives you a slightly better picture. Overall the image quality is a bit poor (focus is about 1/4" away) but it will show you carbon / copper fouling and probably throat erosion.

The pictures below are from my 24" .308WIN Benchmark Barrel. It has 3R rifling and a 1:10 twist. Currently there is around 1300 rounds through it. Seems to be showing some wear on the shoulder area but other than that its fine. Still shooting strong.

Slightly Dirty Bore (light carbon):

Clean Bore:

Chamber:

Flash Hider and crown:

 

[Ggmac]

The only thing I see ? Is it looks like your chamber is not cut centered with the bore .
Did you get the 90 deg mirror with it ? It helps . With Lymans borecam for $230 . It's a worth while investment . I've got the Hawkeye , 3 of the Amazon specials , and a Acutel . Modified they all work as good as the Lyman , but modifying them requires times , expertise , and patience .
The least expensive , easiest mod to kind you have is to make a 1/2 extension that will acomadate the mirror . Again you want the mirror about 1/2" from the end . It limits your field of view , but it's sharp focused pic .

 

[waldo1979]

The only thing I see ? Is it looks like your chamber is not cut centered with the bore .
Did you get the 90 deg mirror with it ? It helps . With Lymans borecam for $230 . It's a worth while investment . I've got the Hawkeye , 3 of the Amazon specials , and a Acutel . Modified they all work as good as the Lyman , but modifying them requires times , expertise , and patience .
The least expensive , easiest mod to kind you have is to make a 1/2 extension that will acomadate the mirror . Again you want the mirror about 1/2" from the end . It limits your field of view , but it's sharp focused pic .

You're seeing an offset view which is why the bore doesn't look concentric to the chamber. This isn't a $230 camera, it's an $18 camera.

 

[Ggmac]

Yes I know , I've got a few of them as mentioned in posts from 3-4 yrs ago . I was politely pointing out the near useless pictures that aren't in focus . It lead you to assume light wear on shoulders . Which by the way I've never encountered in 35+ years of riflesmithing . 15 of which having a real Borescope .
The Amazon specials are hit or miss in function , but can be made to work almost as good as the Lyman borecam . But , it's only worth it if you can do it yourself . When the Lyman came out ,it eliminated the need for a portable , less fragile Borescope . I had many of the Amazon specials , even the one you have , had to return 2 just because the camera was off center and field of view was crescent shape . It is a $20 camera that can be upgraded to near Lyman specs but it's no longer worth the time .
Try the 90 deg mirror with the extension ( you have to make the adapter )

 

[waldo1979]

Good to know thank you

 

[waldo1979]

@Ggmac, I ended up purchasing a Lyman borecam. Thanks for the recommendation.