I may have put some life back into this barrel.  From my previous posts months ago and issues with accuracy I discovered this barrel was loaded with copper after I swapped it out with a DD CHF/CL barrel.  I did two treatments with Shooter's Choice copper remover per the directions and it came out better than expected.  

Just for giggles I scrubbed the hell out of it with a brass and plastic brush and it literally made no change before the copper remover.

Once I used the copper remover it was very fast.  Scrubbed with solution, let set, rinsed with brake clean, and re-checked, duplicated and final clean and rinse.

Before:  




After(Disregard my kids Phone.  He loves to do what dad's doing)

Shooter's Choice bore cleaner and copper remover are my go-to products for cleaning the bore.  While stinky, they work great.

Barrel looks button rifled with alot of tooling marks... who made it?

Might be a candidate for FinalFinish bullets.

Button rifled barrels usually have very smooth finishes. It's an economy barrel, for sure.

No doubt.

No way that is an CHF barrel.

He said he swapped it out with a CHF bbl.

Topic Moved

OP, what borescope are you using? Thanks

I'd use some abrasivs on it now. JB or Remington RBC.

B