Throat and Barrel Life Concerns. 7mm PRC + New Outlier Barrel + N570

[Corey75]

Just recently installed a new barrel that has now fired 100 rounds total. Running n570, brand new Peterson brass, cci 250's, and various 180s during my load tinkering. Every load was a a grain or two below Bergers book max. Following Boretechs instructions, I cleaned the barrel with Eliminator for two rounds. It still looks pretty nasty and I'm seeing some fire cracking at the throat already, and some other odd spots. I'm going to attach a few photos if anyone would care to take a look for me. I'm fairly new to the precision rifle world so I would appreciate some input on exactly what you guys are seeing.

 

[TxLite]

This is why I don’t bother using a bore scope. Ignorance is bliss

N570 is not known for being kind to barrels.

 

[Corey75]

I agree. Lived that mindset up until a couple of months ago but now that I have a borescope, i can't stop looking haha

 

[flyfisher117]

Shoot it until it doesn’t shoot anymore.

My Remington 700s bore is atrocious looking. Shoots good though.

 

[wapitibob]

I would be more concerned with what looks like a gouge down the length of that one land.

My experience with N570 is that you'll be able to measure throat erosion about every 20 shots in a PRC.

 

[Corey75]

Okay

I would be more concerned with what looks like a gouge down the length of that one land.

My experience with N570 is that you'll be able to measure throat erosion about every 20 shots in a PRC.

I'm very concerned about the gouge.

I just didn't know if it was build up of some sort or a gouge. I can confirm that it was not there when I installed it so i'm wondering what I did to cause it

 

[wapitibob]

Could be a visual anomaly. I don't borescope unless the barrel is clean, which I haven't done on this new prc barrel.

 

[Corey75]

Could be a visual anomaly. I don't borescope unless the barrel is clean, which I haven't done on this new prc barrel.

Which part may be the anomaly? I borescoped it when new because it was my first new barrel. Wanted to see some fresh rifling. Those photos are after two cleaning sessions after about 50 rounds without a cleaning.

 

[DangerRanger]

Honestly I think you should throw the borescope in the can and shoot the gun man, if it shoots it’s fine

 

[Corey75]

It shoots pretty damn good, surprisingly. You’re right!

 

[Dave Thomas]

If it's shooting good don't worry about it. Use the borescope after cleaning to check your progress. Make sure the carbon ring isn't getting out of hand and that your getting most of the fouling out but don't worry about getting it perfect. Every barrel will get firecracking. Just shoot it until it doesn't shoot to your standards anymore.

 

[TheCoyote]

Could send a picture of that gouge to the barrel manufacture and see what they say.
It might be an illusion. I have seen things that look like gouges that turn out to be nothing, its a weird way that borescopes make things look sometimes.

This was a borescope pic that I took. I thought for sure it was someting bad. After a dry patch it turned out to be nothing.