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Discussion Starter · #1 · (Edited)
ACR Kaboom (ETA Pictures on Pg 2)(Pg 4 update on repair quote)

Well my ACR blew up, just after getting my ACR sighted in on the ACOG, Micro T-1, and iron sights and just as I was beginning to have fun.

I can't tell whether it was the Winchester soft points I was shooting that is the culprit or the rifle itself because I picked up a few rounds of LC brass that I think are mine that have evidence of high pressure: flattened primers and smeared head stamps.

Lucky to have all my fingers. Goggles protected my eyes. But I have a few fragments just under the skin of my left hand.

My poor Morrigyn was barely stretching her legs when she blew. :(

ETA: I'll have pictures up as soon as I'm able.
 

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Sad to hear, I am assuming that you are ok and only the rifle suffered the damage.

Please post what ever you can about what happen when you can. Information is our best tool to keep it from happening again!
 

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Glad you are ok,i guess they owe you a new one.
 

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Discussion Starter · #4 ·
Quick review of the visible damage:

Bolt cracked through the face, dividing the bolt face in half then running down the length of the bolt.

Extractor bent outwards.

Cartridge case still in bore. Case head split down the middle through primer pocket and spit the half case head out. The other half remains attached to the partially liquified cartridge. Bore is clear of obstruction.

Magazine base blown off, remaining rounds scattered over God's creation. Follower and spring remains in the bowed out mag body.

No immediately obvious damage to trunion, barrel, or recievers.
 

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Glad it didn't get worse than it was. Good you had eye pro on. It was basically an over charge from the factory ? Do you have the ammo lot number saved? We look forward to seeing what happens from this. Hope you get a replacement in a hurry without them giving you a hard time.
 

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Glad you are ok. Sounds like a bad round. Post pics and the lot # of your ammo.
 

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Sounds like the rifle contained the blast fairly well concidering. Did the bolt carrier sustain any damage? Its a beast and I bet it faired better then an AR bolt carrier would.

Did you suffer any ill effects from the episode? Hand burns or anything like that? (hope not)
 

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Discussion Starter · #8 ·
I don't see any damage to to the carrier at all. And some minor carbon blackening my hands, a few slivers of case material, and the joints of my fingers all ache but otherwise, I'm fine.

'fraid my camera took a crap so it'll be tomorrow before I can get any good pictures.
 

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Whoever the engineers are now for this rifle, they might want to see your rifle and you might be able to work an angle to get a replacement. If that doesn't work you may have to get some of the rounds from the same lot as the culprit round and work through the ammo manufacturer to get them to comp you(I have seen this before with lesser ammo manufacturers). Just my experience/opinion, it's worth about what you paid for it.

Mike
 

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Yeah they'd deffinatly want it mailed in. Don't know if you have insurance on your rifles but I hope Bm replaces it rather than make you wait several weeks while they dissect it and test it. Also hope they don't turn their noses up and point the finger at the ammo and not want anything to do with it. Did you say you fire right or left handed? Think it was an overall length or case length issue? Headspace maybe ? but it cycled fine before that one round im sure.
 

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you mentioned LC headstamps and soft point bullets were these reloads by chance?
 

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glad to hear your ok, the good thing is the receivers survived the ordeal and didnt grenade on you, hopefully bm will hook you up though
 

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...I can't tell whether it was the Winchester soft points I was shooting that is the culprit or the rifle itself because I picked up a few rounds of LC brass that I think are mine that have evidence of high pressure: flattened primers and smeared head stamps...
Winchester soft points? LC brass? Evidence of high pressure? Reloads?
 

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Wow. Glad you're okay. Agreed all around that it sounds line bad ammo, but who knows. You've gotta give a go at getting it replaced through BM. Couldn't hurt... At least not any more than it did when it blew up. Thank God you had your eyes on.
 

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Like I said good you had protecive eyewear. Im guessing you fire right handed? Were all anxious to see how they take care of you.
 

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Discussion Starter · #16 ·
Here are all the parts...


The bolt and carrier...





Barrel and stuck case. I couldn't find the other half of the case head and I don't see any obvious damage in the barrel...



Reciever and trunion. Again, I don't see any immediately obvious damage...



And my hand. Not much to see after a few days but those little black specks are bits of case material, I'm sure.
 

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Discussion Starter · #17 ·
My friend handed me the last few rounds out of a Winchester white box. I should have paused when I noticed the soft points and check the headstamps but I was enjoying the day and I trusted my friend.

It turns out that he didn't remember where or when he got that ammo. He doesn't reload but he doesn't remember buying from anyplace like a gunshow. All we know is that it's old since some of the headstamps we recovered are from the Twin Cities plant with headstamps of 1971.
 

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did you contact BM?
 
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