Factory rounds sticking?

[WA Coyote]

I've got a 6 Creed that all of a sudden won't chamber factory 103s. I've shot hundreds of these rounds, some even from the same box that now are sticking bullets in the rifling. They're so stuck they'll pull out leaving an empty case and powder all over the place when I try to extract a live round, and the bullet is lodged… though it doesn't appear to be engaging the rifling. It's acting like the rounds are too long, but they're measuring ok.

It seemed to happen suddenly, and a good scrubbing of the bore didn't change anything.

Could it be a nasty carbon ring?

It's just weird, because this rifle has always been flawless. Barrel is a 1-8" Benchmark with about 1500 rounds through it.

Thoughts?

 

[Frog4aday]

You called it - a 'nasty' carbon ring. Bummer. But...fixable!

 

[sedancowboy]

Sounds like a carbon ring. Also I would imagine that your barrel throat is showing some signs of wear. A bore scope/camera will tell the tale. They are $50 on Amazon.

 

[Old Rooster]

The above posts got it right.
Just went through it 2 weeks ago. Ammo was hard to load and stiff bolt when shot. Bore scope showed a perfect carbon ring that was so thick it allowed gasses to bleed back into the chamber. Took a couple of hours to get it back to bare steel and shooting great again.
Used chamber brush and Iosso to get back to shinny clean again

 

[WA Coyote]

Thanks y'all….

I figured that's what it was, though I've never dealt with one causing rounds to chamber this rough.

 

[RichCoyle]

Can you use the chamber reamer to remove a carbon ring?

 

[Old Rooster]

I would not think so since all my carbon rings are at the beginning of my barrels. I may get carbon deposits in the chamber but it comes out pretty easily with Iosso or JB Bore Bright