Sounds that way. It must be fun to know everything.
XCR-L out of battery discharge
- Thread starter Canadian_Zuk
- Start date
Sounds that way. It must be fun to know everything.
Canadian_Zuk
CGN Ultra frequent flyer
- Location
- Pickering, Ontario
I will take that bet and your money. I already said this was after a mag change with an empty chamber. I was on my 6th mag. Inserted the mag, racked the charging handle and it went boom in my hand. Witnessed by others. Why the hell would I lie about it? Its not like Im crying foul or looking for compensation. Sh!t happens. Sh!t happened to me. Now your sh!tting in my thread. Go find someone else to troll.
Last edited:
Just going from what the guys at wolverine told me when I took it in to get it repaired. there was damage to the bolt as well that I didnt mention
Canadian_Zuk
CGN Ultra frequent flyer
- Location
- Pickering, Ontario
I've been picking brass shards out of my palm for 4 days now. Still lots of little bits of brass and powder imbedded under the skin, I will now be adding shooting gloves to my "required" PPE while shooting. I'd post a pic of my reverse racoon face (thank you safety glasses), but I'm too ugly and this is a family oriented site 
Zuk, you're fortunate all your digits still wiggle . Hope the gun goes bang again real soon.
I'll admit that I don't wear my eyes nearly enough. You got me re-thinking.
Fwiw, I almost always wear gloves, cause that's what operators do.
. Hope the gun goes bang again real soon. I'll admit that I don't wear my eyes nearly enough. You got me re-thinking.
Fwiw, I almost always wear gloves, cause that's what operators do.
Hey guys, help me out here. I'm not understanding something, when you rack the action back, there should be nothing that contacts a round in the mag right? Its when you release it that the round is chambered and the firing pin is primed and now it is in battery? So what happened possibly is that the firing pin was stuck in a forward position during the process of chambering the round and thus setting it off?
Canadian_Zuk
CGN Ultra frequent flyer
- Location
- Pickering, Ontario
correct. Had the cartridge been fully into chamber with the bolt locked into place (in battery) the round would have gone down range. The bolt is what strips the cartridge from the mag, the firing pin is spring loaded to prevent it from protruding from the bolt face until the hammer falls. Mine must have been stuck forward, igniting the round as it was stripped from the mag. A harder primer would have most likely just pushed the firing pin back into the bolt.
Any idea what causes a firing pin to stick open? Would it have stuck open from the last rnd fired in previous mag or from racking the charging handle? The reason I ask ,is I'd like to know what to watch for. Thanks. Also glad you weren't hurt.
Canadian_Zuk
CGN Ultra frequent flyer
- Location
- Pickering, Ontario
No idea yet. I packed the parts into the rifle case, went home and haven't opened it since. It's been a busy week for me, Club board meeting, AGM on Sunday, work sh!t, etc.... I wouldn't put too much thought or worry into it, I've run thousands of rounds through this gun in various calibers and every kind of ammo you can think of. I bought it used to begin with as well, so the round count could very well be approaching the 10K mark. They are tough as nails. People complain they are too heavy, right now I'm very glad to have had that extra beef in the upper. I'd be willing to bet if this had been an AR platform I would still be in the hospital.
So, I gather that the XCR is unlike an AR15 in that:
in an AR15, the firing pin cannot physically protrude past the face of the bolt (aside from if the cam pin or firing pin is broken) unless the bolt is locked into battery.
More to the point, can someone take their XCR bolt and rotate it while putting pressure on the firing pin to see if it's actually possible to have the firing pin protrude past the bolt face before it's rotated to the in-battery position.
Often, on AR15s, people mistake case head failures with OOB explosions.
in an AR15, the firing pin cannot physically protrude past the face of the bolt (aside from if the cam pin or firing pin is broken) unless the bolt is locked into battery.
More to the point, can someone take their XCR bolt and rotate it while putting pressure on the firing pin to see if it's actually possible to have the firing pin protrude past the bolt face before it's rotated to the in-battery position.
Often, on AR15s, people mistake case head failures with OOB explosions.
Canadian_Zuk
CGN Ultra frequent flyer
- Location
- Pickering, Ontario
The firing pin moves independent of the cam pin. The cam pin is fixed to the bolt body, and has no influence on the firing pin at all. All it does is rotate the bolt to lock as the bolt carrier is pushed forward.
Edit: my last pic shows the bolt with the damaged cam pin. It is one piece with the bolt body, completely different from the AR. It's more like an AK bolt than an AR bolt.
Sorry, I think maybe I wasn't clear
I realize that the cam pin is part of the bolt on the XCR. What I was getting at is that when the bolt on an AR rotates into the unlocked position, it extends so that the firing pin bottoms out inside the carrier and cannot protrude past the bolt face. When you rotate it to locked, the firing pin only starts to protrude once it is in a fully locked position
So, when the XCR bolt is in the unlocked position, can you physically push the firing pin forward enough to protrude past the bolt face or does it bottom out. Conversely, as you rotate it into the locked position, will it protrude before it's rotated into the locked position, or will it start to protrude before then.
Canadian_Zuk
CGN Ultra frequent flyer
- Location
- Pickering, Ontario
Sorry, I think maybe I wasn't clear
I realize that the cam pin is part of the bolt on the XCR. What I was getting at is that when the bolt on an AR rotates into the unlocked position, it extends so that the firing pin bottoms out inside the carrier and cannot protrude past the bolt face. When you rotate it to locked, the firing pin only starts to protrude once it is in a fully locked position
So, when the XCR bolt is in the unlocked position, can you physically push the firing pin forward enough to protrude past the bolt face or does it bottom out. Conversely, as you rotate it into the locked position, will it protrude before it's rotated into the locked position, or will it start to protrude before then.
if you push on the back of the firing pin, it will protrude regardless of it's position within the carrier. I'll upload pics later. I have other calibers for this gun that haven't exploded yet
if you push on the back of the firing pin, it will protrude regardless of it's position within the carrier. I'll upload pics later. I have other calibers for this gun that haven't exploded yet
Interesting. Seems like not a very wise design feature. :/
