Magnet does not work on case
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Magnet does not work on case
Is it me or does the primer look proud on that first picture. I understand the case is warped badly.
[The Montana Gianni] Front sight and squeeze
A firing pin stuck forward in the bolt could caused it to fire the round before being fully seated in the chamber.
Good Shooting
Lindy
Next time debris could exit the ejection port.
With all the PCC's being shot in USPSA i wonder how much this is happening
What if you had a case that was a little shorter then normal. Maybe the bell was removed but you didn't get a bite into the boolit with the case mouth. Boolit got set back and pressure jumped above normal just enough to overcome the blowback design of your carbine and back the case out enough to swell the case and leak some gas to the rear to produce all that soot.
Not saying this is what happened but could be possible. The added thrust from higher pressure was just enough to slightly overcome the mass of the bolt and the spring pressure. There was enough pressure to obturate the case mouth and drag against the chamber wall and then when it finally dropped enough to allow sooty gas to blowback toward the shooter.
Will have to keep a eye on mine. Have shot thousands of rounds, mostly cast. I clean the action after several sessions of over 200 rounds. I use a lot of AA#7 which produces a lot of powder kernels. No issues yet.
jsizemore: I don't know if you've ever seen the bolt on the Scorpion but it is massive and the spring is very heavy. Wouldn't want to get a inadvertent finger caught in there when the bolt releases. When I run a patch thought the barrel, with the bolt locked back, I always use tweezers, to remove the patch.....
Most plausible reason, to me, is the firing pin not retracting. I have had mine go off in double tap mode, just from recoil.
Winelover
Many people think that because it is a carbine or subgun you can run hotter ammo in it. WRONG! There is NO locking system in the majority of these. If it is sole blowback you cannot hottrod it. It will do the same thing or worse. I have heard the same ole story for many years and I'm surprised so few people get hurt. Slow that load down a bit or change powder but quit shooting it in your scorpion finish them in a handgun ( locking system ).
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Was your daughter shooting at a target and was the impact markedly different?
[The Montana Gianni] Front sight and squeeze
I figured it was like the sten. Moved the bolt back far enough to extrude a bit of brass. I figured If the firing pin was so cruded up to cause it to stay extended that it would have happened again after a couple more mags. Did he ever say if he disassembled the bolt to check/clean it?Originally Posted by winelover
This load is not max! No one is Hot rodding anything. Where did you get this Idea from? Why do you post it in my thread?
You will not get a warm welcome here with these kind of post.
That is one strange looking piece of brass! I made a belted rimless rifle cartridge casing a couple of times, not on purpose though. Glad the casing didn't let go and nothing/nobody got hurt.
Charter Member #148
" I loaded the ammo. It was close to max with a 147 gr pc." You said it not me.
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Last edited by Bkingnsmth; 01-11-2019 at 11:12 PM.
I'm not getting in to a pissing contest. On your 4th post you are trolling.
Well, for what it's worth the load in mine was 4.0gr W231 and a Lee 124gr at 1.169col which comes in at 19,494 psi on the QuickLoad guess. With a SAAMI max pressure of 35,000 psi mine was just over half of the allowable pressure and it still bulged out a few cases and blew out one case from an obstruction in the receiver keeping the bolt from fully closing. Many pistol caliber blowback carbines do not have a trigger disconnect and rely on the shape of the bolt and hammer to only make full contact with the firing pin if the bolt is mostly closed. It's something to be aware of.
My late brother got a Tec-9 in a trade that did that with every round(balloon the case head) so we broke it down for parts and sold them. The plastic frame and some PVC pipe made a toy gun for my nephew.
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Owners manual says to use factory loads only.
I truly enjoy these "I loaded a bunch of ammo and something went wrong" threads.
Handloads always start their trail with the guy at the bench.
"Everyone has a plan, until they get punched in the face!" - Mike Tyson
"Don't let my fears become yours." - Me, talking to my children
That look on your face, when you shift into 6th gear, but it's not there.
You do realize you are on Cast boolits.com . here we cast our own and load them.
I cast and load my own because of the sorry factory ammo I've seen.
Nothing wrong with loading your own.
The point is, the OP has joined the ranks of the mishaps.
There's three things wrong with his process.
One of them is not using factory ammo in a firearm that says to do so.
Just because you can, doesn't mean you should.
Failure to recognize failure leads to accidents and negligence.
Life is tough, even tougher if you're stupid.
"Everyone has a plan, until they get punched in the face!" - Mike Tyson
"Don't let my fears become yours." - Me, talking to my children
That look on your face, when you shift into 6th gear, but it's not there.
I'm glad I didn't say that!
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