KABOOM! It happened to me.

[Rat Finkenstein]

I'm a joke computer-wise. I've never posted pics or sent them e-mail.
When I first got the computer I'm using right now my e-mail wouldn't work because of the anti-virus software, or so I was told by the cable company.
Maybe I'll try my Daughter's computer Monday.

As far as my rifle getting dirt in the barrel, it was just a long bare sloping hill, and my rifle was basically port arms.

Thanks for everyones concern.Patrick

Go to photobucket.com and upload the pics to their server, then you can post them here or links to them.:thumbup:

 

[Spinnerblade]

pics have arrived.

 

[zpaulg]

Looking at the damage primarily based around the chamber I would guess you had had a light load. In other words not enough powder in the round, in this scenario instead of getting a progressive pressure wave which forces the bullet down and out of the barrel, the initial primer ignition is able to jump over the top of the insufficient powder load lighting it at both ends. The resultant damage when both pressure waves meet in the middle, and effectively explode, are typified in your photos. As Sid said you're lucky not to be picking pieces out of your face, or worse....

 

[Spinnerblade]

CMMG finally returned my rifle today.

The earlier pics.

[/IMG]

The ammo importer Century Arms issued the check for the replacement upper fairly quickly.
CMMG took their time getting it back to me:grumpy: . Patrick

 

[SIFU1A]

Patrick,

Sorry to hear about your experience (especially as it was with a British product!)

Is it possible that - in running over broken ground - you inadvertently let the muzzle of your rifle touch the ground, thereby obstructing the bore with soil?

maximus otter

i dont think so otter, if the bbl was obstructed like ya say imho it would have blown out the bbl right behind the obstruction, not way back at the rec'r,

glad they could fix the rifle.

 

[bigkahunasix]

I'm a little late to the party but I would say you had an "out of battery discharge". Basically the weapon fired the round before the round was fully chambered.
Could have been caused by any one of several things- partial case separation from the previous round, dirt (Radway is dirty ammo) holding the firing pin forward (could have been partially caused by flaking sealant from around the primer), a non-fully seated primer, improper headspace from factory (very possible).
Been gunsmithing about 20+ years. Just my .02. Bigk6

 

[mp510]

WOW

I had an overpressure round shooting a .22. Luckily it didn't damage the weapon, but the extra bang and the bolt getting locked back (there was 8 more rounds in the mag) were a definite shock.

 

[xanax]

I used to spend around 70-100 dollars a week on ammo. All was factory fresh, I have never shot a single reload in any of my guns. A buddy of mine at the time ran gun shows in Cali. He told me I was wasting my money and to shoot his reloads. He claimed he never had a problem and had shot countless rounds. A few weeks later he told me he blew up his 9mm Sig Sauer. It was from a re-manufactured round.Two weeks later we were at the range together and he was still ticked, because he had to get a new gun. But still decided to shoot the same ammo from the same batch he had on hand. I was standing to the right of him when bam! He hit me in the face 15' away with his brand new sig's ejector. He still used reloads, I never will.