Fire cracking

[Blackdirt Cowboy]

I'm new to bore scopes and looking down barrels and need some advice on how bad this fire cracking is. It's on a 7mm Weatherby magnum. Round count is unknown. I purchased the gun used and put 200 rounds down it so far. Previous owner didn't know round count. For what it's worth, the cracking extends about 10" down the barrel getting lighter as you move away from the chamber. What do y'all think. Is there any life left in the barrel?

 

[J E Custom]

That looks bad, but if it still shoots, keep using it. That much fire cracking is normally caused by excessive heat. At this point there is nothing you can do the stop/prevent it
so use it as long as the accuracy holds to some exceptable level then replace the barrel.

J E CUSTOM

 

[sable tireur]

At this point there is nothing you can do the stop/prevent it
so use it as long as the accuracy holds to some exceptable level then replace the barrel.

This is the thinking most of us use when assessing a barrel. As long as it meets your requirements for accuracy, keep shooting.

The drawback which does occur with this kind of damage is accumulation of copper and fouling which can get to be difficult and time consuming to remove.

 

[Mram10us]

Definitely want some copper to fill those gaps and smooth it out