Chamber job- borescope view

[Dusty Stevens]

Its pretty bad

 

[marchx]

Its pretty bad

pls kindly elaborate.

 

[WSnyder]

would you kindly stop complaining about carbon. I am interested in your view on the reamer job.

These responses already pretty much covered it. I'll agree it's not the finest job I've seen, it is a bit rough and certainly not something I'd turn loose.

OK the chamber could be polished a little more, . If the reamer is a little dull it will begin to tear the steel a little in the shoulder areas you see in the pictures.

Throat looks pretty concentric.
Tooling marks on the counterbore? As said could be better,

 

[LVLAaron]

pls kindly elaborate.

You know why. It looks like shit, was cut with a dull reamer, and again, looks like shit. What else do you want people to tell you?

 

[Dusty Stevens]

A nice finish comes with pride of doing a good job. Turning something out like that shows way too many shortcuts taken and zero pride in doing things right. This can come from laziness, inexperience, lack of proper tools, etc. Nobody that does more than single barrel shotgun repair would let that get out with their reputation attached.

 

[gme]

I'd never let that out of my shop

 

[Judd]

That's called a carbon ring.

Thanks, I’m an idiot…that’s exactly what I meant lol. Thanks Dave.

 

[NorCalMikie]

Been fired yet??? What does your target say?? That should be the first thing to see.
If it shoot bug holes, get rid of the bore scope.
Only when it won't shoot do you look with a bore scope.
LOTS of barrels have been trashed by looking at them with a bore scope.

 

[marchx]

You know why. It looks like shit, was cut with a dull reamer, and again, looks like shit. What else do you want people to tell you?

That's exactly I wanted to know, Sir. If at least 3 people tells you it looks like shit, it indeed looks like shit.

 

[marchx]

I'd never let that out of my shop

That's what my old gunsmith told me.

 

[marchx]

Been fired yet??? What does your target say?? That should be the first thing to see.
If it shoot bug holes, get rid of the bore scope.
Only when it won't shoot do you look with a bore scope.
LOTS of barrels have been trashed by looking at them with a bore scope.

Yes, I fired 300 rounds and there is accuracy problem there. That's main reason I looked into the barrel with a borescope. If the barrel shot amazingly (as it should) it would not interest me that much, how the chamber was drilled.

 

[338 dude]

Man thats awful. This is why we always say usps and ups runs everywhere- just because you can use local doesnt mean you should (if thats what happened here). That is also an awful looking barrel, like a real bad factory barrel. Have you been using eliminator in there?

 

[clowdis]

I will reiterate that this isn't the best chamber reaming job I've ever seen, but it isn't bad enough to cause accuracy problems. All the roughness in the chamber is behind the bullet. It is concentric and the throat looks good. Any accuracy problem that I see is probably caused by carbon deposits and poor cleaning, even though that isn't what you want to hear.

 

[LVLAaron]

I'd never let that out of my shop

If that was my first chamber I think I'd push my lathe into a lake.

 

[Will Henry]

So, set it back a thread or two and re-cut it. At the same time, do a better job on the counterbore and polish the face. These two won't help performance any but you can make it look pretty under magnification. Then, don't shoot it with dirty ammunition or ammo with lube on it. Recutting the chamber will give you an opportunity to get a smooth finish, so your cases will extract more easily. WH

 

[Bill K]

How is it shooting ? Good grouping and all. If so then why worry about the chamber, shoot it, enjoy it, until it is time to re=barrel.