Got the Teslong bore scope. Is this rifle chamber cooked?

[AleksanderSuave]

Tikka t3x CTR. about 800 rounds down the pipe. Started getting issues recently with it heating up unusually after 20 rounds, POI shift as well, and groups started opening up as well.

Figured it was due time for a cleaning. Did my usual routine with hoppes, bore brush, relube, etc. Didnt make much of a difference.

Went back and picked up some SLIP 2000 carbon killer, let it soak inside and then ran bronze brushes through, and patches until patches came out clean.

I ordered a borescope out of curiosity and this is what I find in the length of the chamber:

so..did I completely miss cleaning the most important part like an idiot, or is that long line a stress fracture/crack?

The rifling/barrel after has a few streaks of copper and carbon from what I can see in the borescope but does not look anything like this..

Decided to try cleaning again after the above and not sure if Im seeing a difference (bore was bone dry first time I scoped it), now its a little wet after being recleaned (patched a few times again.

Seeing what I thought was a hair or leftover fabric from the patch now looking like a decent gash or worse (this is at the end of the long 'scratch' previously pictured, right before the barrel rifling becomes visible)

 

[46and2]

You need to adjust the light. Cant see anything.

 

[PigButtons]

Does the squiggly line you are talking about in the first few pics run around the barrel or along the length of the bore?

 

[Ggmac]

Adjust the light ! most of what I see is dust and fabric /hair . All but that unusual line picture 2,3,4,5. Need to lighten the image .

 

[Ggmac]

Dont forget to clean the lens very well . Any spec on the lens will look huge

 

[DaveTooley]

I have no idea what I'm seeing. It takes some time with a new tool to understand what you're seeing. With 30 years experience with a borescope I still see things I can't explain.

 

[AlNyhus]

Looks like a longitudinal scratch in the chamber. Whether it's significant or contributing to the issue...it's hard to say. -Al

 

[butchlambert]

Now you see why barrelmakers love borescopes. They sell a lot of barrels!

 

[AleksanderSuave]

Does the squiggly line you are talking about in the first few pics run around the barrel or along the length of the bore?

runs along length of the bore

 

[AleksanderSuave]

I have no idea what I'm seeing. It takes some time with a new tool to understand what you're seeing. With 30 years experience with a borescope I still see things I can't explain.

Working on getting a better shot of it. I apologize, this thing definitely has a learning curve

 

[powderbrake]

You need to screw the mirror in or out for focus for each caliber change. That way you get a sharp picture of the bore or chamber. + clean that mirror.

Here is a focused picture.

 

[AleksanderSuave]

this is about the best I was able to get. My brightness adjustment seems to go from only bright to off...

cleaned the mirror, checked inside, no hairs or fibers in either. These are the same areas I got the previous photos of.

 

[Ggmac]

Is your bore dry ? This is the chamber or rifling ?

 

[Ggmac]

All of those bright little dots still look like dust or some kind of foreign particles . I thought they may be dead pixels in the camera but they arent repeated . I would try focusing it still , a 1/4 turn will take you past the sweet spot but it takes a few turns to change from a 30 bore to a 22 .are you using moly bullets ? Just trying to figure out why little reflection

 

[Tokay444]

Looks like scratches in hard carbon.

 

[DangerRanger]

It’s fabrix/junk/hair

how does it shoot now that you cleaned it

 

[SSL]

this is about the best I was able to get. My brightness adjustment seems to go from only bright to off...

cleaned the mirror, checked inside, no hairs or fibers in either. These are the same areas I got the previous photos of.

As suggested, work on focusing your mirror and cleaning the mirror with a lens cloth. Turn your mirror in or out for focusing. Look closely at where the mirror butts up against the probe body. You will see a small nut (look real close) that you can loosen to allow the mirror adjustment. Once you have good focus you can run that nut up against the mirror to keep it in focus and not turn in the bore.

 

[AleksanderSuave]

I shined light on it from both sides, was able to see the fracture/cracking from another angle.

Also took it to a local gunsmith who confirmed that it needs to be sent back to tikka after inspecting the chamber.

 

[jelenko]

You need to screw the mirror in or out for focus for each caliber change. That way you get a sharp picture of the bore or chamber. + clean that mirror.

Here is a focused picture.
View attachment 1279585

It's also a clean throat!

 

[Ggmac]

Picture one is a stain , picture 2 is unknown but looks like fiber