BORE WORMS-WORM TRACKS

[moondog]

Frank addressed this issue awhile back. Humid areas, interacts with carbon or residual cleaning chemicals if I recall.

 

[Precisionhunter417]

Copper + Steel + Condensation = https://armoloy.com/understanding-galvanic-corrosion-causes-prevention-and-solutions/

If storing a rifle at the end of a season I recomend cleaning to bare metal, applying a corrosion inhibitor such as OneShot, store in a dry climate or patch out moisture regularly. Thats a lot of work needed to 90% gaurentee this doenst effect your barrel.

 

[crookedc]

I can definitely see them with the naked eye when I shine a flashlight from the breech end and look at it from the muzzle end. They appear as tiny dots or lines in my case.

Because mine is only in a small area 1-2 inches from the muzzle, I used a thin needle to lightly rub around these wormtracks while looking at it with the borescope with mirror detached. I could not feel any resistance at all and it feels exactly as smooth as any other part of the bore so it's a bit of a consolation. Of course it's entirely possible these do have some depth to it but it doesn't seem to be enough for me to feel it through touch.

 

[DShortt]

Shoot they where there new out the box when this thing was caked full of grease ... Those aren't gouges either there raised up

That looks like a hammer forged barrel with scratches on the mandrel to me. Why they used it ....... no idea.