Powder ring in barrel

[Sports1]

A 6.5 PRC with a powder ring in Christensen BBL. Only 1000 rounds through it in last three years.. Will this continue to do this after a good scrub? any help out there

 

[SigWig]

Barrel life for 6.5 prc is between 1000 and 1500 rounds before accuracy drops off.

Clean it, give it a try...

Start planning a new barrel

 

[DinduNuffin]

Some calibers and rifles are more prone to it....I have a 7 PRC that develops a carbon ring that causes pressure issues after about 40 rounds. To remove it I soak a bore mop in Bore Tech C4 and place it in the throat area of the chamber over night with the muzzle pointed down. The next day use an oversize nylon bore brush(.30 cal in my case) on a chamber rod and shove it into the throat area until resistance if felt and twist about 30 times. Borescope to check. It is also important to note that if you reload don't over trim your brass, it makes a carbon ring more likely to develop.

 

[Hitzy]

Oddly, with my 300 Win mag Bartlien barrel, I get a carbon ring about half way down the barrel after a few sessions, rest of the bore is shiney, couple passes with JB paste it's gone, but it keeps coming back in the same spot.

 

[Buck1950]

Hitzy, is there a slight 'loose spot' (bulge) there when you run a patch thru ? Could be letting C-debris 'collect' there ? Cleaning with JB could be 'expanding' that ? WAG