Factory or me?

[Fullbore92]

I recently purchased a bore scope and it was delivered today so I figured I'd play around with it a bit. I noticed this sort of gash or imperfection, not sure what to call it. Does this look like something from the factory or something I could have possibly caused? The mark in question is positioned at the start of the lands. Barrel is a carbon fiber from Bergara. It has 292 rounds fired through it. 6.5 Creed if that matters. Have not had any problems with the rifle. Very accurate. I'm not sure if there's mark has been there since I bought it or if it developed afterwards.

 

[Fullbore92]

 

[sedancowboy]

a lot of factory rifles will have those tool marks. If it shoots don't worry about it. Now if one of my custom barrels had that I would send it back.

 

[G19Jeeper]

Unless your ramming a hardened steel rod down the barrel id imagine that was from the manufacturing process. Would be worth a call. I had a Sauer .3006 with an "egg" in the barrel and it still shot close to an MOA. Sauer still warrantied it will a brand new rifle.

 

[Buffalobwana]

a lot of factory rifles will have those tool marks. If it shoots don't worry about it. Now if one of my custom barrels had that I would send it back.

Agreed.

I have a 260 that looks like someone used a 1994 Skill cordless drill to cut the chamber.

It shoots, so I solved the problem by not looking at the chamber.

Does it shoot? If so, getting a new barrel could put you in a worse position.

 

[lancetkenyon]

Regular cleaning will not do this. No matter what you are using (unless you used a hardened tool steel solid rod and a chipping hammer to drive it. My son-in-law has a .22LR that was so fouled I couldn't run a rod down the barrel. I looked and it was layered with lead deposits. I took a steel rod amd actually hammered it down the barrel to scrape the lead out. It took about 6 passes with chunks of lead coming out each pass. Finally got it cleaned after days of working it. Barrel looked rough but fine after all that torture. I ran JB bore paste down it about 50 times, and smoothed it right out. Shoots OK now.

The only way this could have been "you" is if you had foreign material like a loose SS chip in the bore and you fired a round down the barrel.

This is why I don't recommend a bore scope to the everyday person. If a rifle shoots well, you should never look down a barrel. This is all you are going to think about now.

Ignorance is bliss.

 

[Rflshootr]

So, would you like to elaborate on what you may have done to think you may have caused it?

 

[Gorill@]

I have the same issue except my marks are about half way down the barrel. Mine drives nails. I wouldn't worry about it.

 

[Rosebud]

I've got a Browning B78 in 25-06 built in 1987, it shoots amazing. But when you look down the tube with a bore scope it looks like tree bark,or fungus growing in the groves. If it shoots great stop worrying. Its amazing that rough barrels will shoot great. Sometimes its best not to look inside the bore of good shooters.

 

[Nomad8961]

It would take a hardened steal rod and a hammer to make something like that. It's probably marks from cutting the rifling. Some times when the tool gets dull shavings will drag and gouge the material your working. Just a guess

 

[Rflshootr]

It would take a hardened steal rod and a hammer to make something like that. It's probably marks from cutting the rifling. Some times when the tool gets dull shavings will drag and gouge the material your working. Just a guess

Or the end of an uncoated stainless steel cleaning rod that the brush or jag was slightly smaller and getting a tight patch stuck....especially right past the throat where most of the fouling is. That's one of the reasons coated rods came into existence years ago. Just a thought.

 

[longgun505]

First I would say that looks like button drag/chatter from a worn button cutter.
Second there is nothing in the average cleaning world I've ever seen that would cause that damage with a single pass. It is also highly improbable a rod and brush would follow that exact track each stroke, thus causing the level of damage in the pictures. That series of (potholes) neatly aligned occurred under extreme pressure and following a controlled path. The only other event I have witnessed remotely similar is firing a rifle with sand/hard debris in the bore. In the military we went to extremes keeping environmental debris out of our sniper rifles to avoid bore damage issues. But generally those events cause a crushed/sprayed mark much like the pattern left on cement by a water balloon when thrown down range. Point of origin/impact with an abrupt fanned out pattern.

 

[Rflshootr]

Buttons don't cut. They swage. Lack of lubrication during the rifling process maybe, but if that were the case, it would most likely run the length of the barrel.

 

[HRM Johnny]

I recently purchased a bore scope and it was delivered today so I figured I'd play around with it a bit. I noticed this sort of gash or imperfection, not sure what to call it. Does this look like something from the factory or something I could have possibly caused? The mark in question is positioned at the start of the lands. Barrel is a carbon fiber from Bergara. It has 292 rounds fired through it. 6.5 Creed if that matters. Have not had any problems with the rifle. Very accurate. I'm not sure if there's mark has been there since I bought it or if it developed afterwards.

Please let us know how the story ends. Which is to say, what you end up doing about it.