TexasCHLforum.com

That will do it

Beiruty wrote: Sun Apr 14, 2019 9:41 am

kayt00 wrote: Sun Apr 14, 2019 8:51 am

Beiruty wrote: Sat Apr 13, 2019 9:46 pm Update:
Use science, a few sec of super chilled compressed "air in a can", sprayed on the case head, made the mission way easier. One bang and it just came out.
Photos:
https://photos.app.goo.gl/8uKwduy1N7Wop ... 13OHfLBs5o
Chamber was polished too, too much black stuff came out
Photos:
https://photos.app.goo.gl/Z83ZGuc72GQoV ... 90NDHJhJJ0

Because science, glad that worked out. Any idea what caused the problem?

This is why it did not chamber:
https://photos.app.goo.gl/YBMcuyALqRo5XbJJ7

Wow! That bulge on the shoulder is alarming. Did you give the chamber a good cleaning? Also, any ideas of what caused the bulge? It might be useful to examine the next couple of dozen ejected cases to see if there’s any incipient signs of any problems

mojo84 wrote: Sun Apr 14, 2019 7:48 am Would something like liquid wrench orPB Blaster have worked? Would that be damaging to the chamber?

I used quite good amount of super slick stuff can. The idea was to disable the primer/powder. I still had to use the chilling air in a can.

The Annoyed Man wrote: Sun Apr 14, 2019 2:09 pm

Beiruty wrote: Sun Apr 14, 2019 9:41 am

kayt00 wrote: Sun Apr 14, 2019 8:51 am

Beiruty wrote: Sat Apr 13, 2019 9:46 pm Update:
Use science, a few sec of super chilled compressed "air in a can", sprayed on the case head, made the mission way easier. One bang and it just came out.
Photos:
https://photos.app.goo.gl/8uKwduy1N7Wop ... 13OHfLBs5o
Chamber was polished too, too much black stuff came out
Photos:
https://photos.app.goo.gl/Z83ZGuc72GQoV ... 90NDHJhJJ0

Because science, glad that worked out. Any idea what caused the problem?

This is why it did not chamber:
https://photos.app.goo.gl/YBMcuyALqRo5XbJJ7

Wow! That bulge on the shoulder is alarming. Did you give the chamber a good cleaning? Also, any ideas of what caused the bulge? It might be useful to examine the next couple of dozen ejected cases to see if there’s any incipient signs of any problems

I will keep an eye. The case was like that when chambered. Why it was like that, who knows. It is a factory ammo. I cleaned and polished the chamber. See the photos in my above post.

Beiruty wrote: Sun Apr 14, 2019 3:15 pm

The Annoyed Man wrote: Sun Apr 14, 2019 2:09 pm

Beiruty wrote: Sun Apr 14, 2019 9:41 am

kayt00 wrote: Sun Apr 14, 2019 8:51 am

Beiruty wrote: Sat Apr 13, 2019 9:46 pm Update:
Use science, a few sec of super chilled compressed "air in a can", sprayed on the case head, made the mission way easier. One bang and it just came out.
Photos:
https://photos.app.goo.gl/8uKwduy1N7Wop ... 13OHfLBs5o
Chamber was polished too, too much black stuff came out
Photos:
https://photos.app.goo.gl/Z83ZGuc72GQoV ... 90NDHJhJJ0

Because science, glad that worked out. Any idea what caused the problem?

This is why it did not chamber:
https://photos.app.goo.gl/YBMcuyALqRo5XbJJ7

Wow! That bulge on the shoulder is alarming. Did you give the chamber a good cleaning? Also, any ideas of what caused the bulge? It might be useful to examine the next couple of dozen ejected cases to see if there’s any incipient signs of any problems

I will keep an eye. The case was like that when chambered. Why it was like that, who knows. It is a factory ammo. I cleaned and polished the chamber. See the photos in my above post.

In some of the photos from before polishing it almost looked like the chamber might have a micro-crack in it. Was that a concern as well?

Bitter Clinger wrote: Sun Apr 14, 2019 3:41 pm

Beiruty wrote: Sun Apr 14, 2019 3:15 pm

The Annoyed Man wrote: Sun Apr 14, 2019 2:09 pm

Beiruty wrote: Sun Apr 14, 2019 9:41 am

kayt00 wrote: Sun Apr 14, 2019 8:51 am

Beiruty wrote: Sat Apr 13, 2019 9:46 pm Update:
Use science, a few sec of super chilled compressed "air in a can", sprayed on the case head, made the mission way easier. One bang and it just came out.
Photos:
https://photos.app.goo.gl/8uKwduy1N7Wop ... 13OHfLBs5o
Chamber was polished too, too much black stuff came out
Photos:
https://photos.app.goo.gl/Z83ZGuc72GQoV ... 90NDHJhJJ0

Because science, glad that worked out. Any idea what caused the problem?

This is why it did not chamber:
https://photos.app.goo.gl/YBMcuyALqRo5XbJJ7

Wow! That bulge on the shoulder is alarming. Did you give the chamber a good cleaning? Also, any ideas of what caused the bulge? It might be useful to examine the next couple of dozen ejected cases to see if there’s any incipient signs of any problems

I will keep an eye. The case was like that when chambered. Why it was like that, who knows. It is a factory ammo. I cleaned and polished the chamber. See the photos in my above post.

In some of the photos from before polishing it almost looked like the chamber might have a micro-crack in it. Was that a concern as well?

https://texaschlforum.com/viewtopic.php ... 5&start=30
Yes, I saw that. I am not certain if it was a crack or just kind of "hair" from the cleaning pad. After Polishing there was nothing. I will double check.

Beiruty wrote: Sun Apr 14, 2019 4:04 pm

Bitter Clinger wrote: Sun Apr 14, 2019 3:41 pm

Beiruty wrote: Sun Apr 14, 2019 3:15 pm

The Annoyed Man wrote: Sun Apr 14, 2019 2:09 pm

Beiruty wrote: Sun Apr 14, 2019 9:41 am

kayt00 wrote: Sun Apr 14, 2019 8:51 am

Beiruty wrote: Sat Apr 13, 2019 9:46 pm Update:
Use science, a few sec of super chilled compressed "air in a can", sprayed on the case head, made the mission way easier. One bang and it just came out.
Photos:
https://photos.app.goo.gl/8uKwduy1N7Wop ... 13OHfLBs5o
Chamber was polished too, too much black stuff came out
Photos:
https://photos.app.goo.gl/Z83ZGuc72GQoV ... 90NDHJhJJ0

Because science, glad that worked out. Any idea what caused the problem?

This is why it did not chamber:
https://photos.app.goo.gl/YBMcuyALqRo5XbJJ7

Wow! That bulge on the shoulder is alarming. Did you give the chamber a good cleaning? Also, any ideas of what caused the bulge? It might be useful to examine the next couple of dozen ejected cases to see if there’s any incipient signs of any problems

I will keep an eye. The case was like that when chambered. Why it was like that, who knows. It is a factory ammo. I cleaned and polished the chamber. See the photos in my above post.

In some of the photos from before polishing it almost looked like the chamber might have a micro-crack in it. Was that a concern as well?

https://texaschlforum.com/viewtopic.php ... 5&start=30
Yes, I saw that. I am not certain if it was a crack or just kind of "hair" from the cleaning pad. After Polishing there was nothing. I will double check.

hhhmmmm….so while it could have been a temporary surface feature, couldn't the polishing also have filled it in and possibly obscured it? I would want to check further, maybe dye penetrant or some other form of NDT? Cannot be too careful after an incident such as this one IMHO.

I will have a further look with my bore snake cam

I am late to the party - but the case bulge and the rim snapped off looks like you may overgassed and possibly underbuffered. The gas pressure starts moving the casing before it has had time to shrink after firing, sometimes causing the bolt to move and tear off a chunk of case rim. Maybe...

couzin wrote: Tue Apr 23, 2019 8:34 pm I am late to the party - but the case bulge and the rim snapped off looks like you may overgassed and possibly underbuffered. The gas pressure starts moving the casing before it has had time to shrink after firing, sometimes causing the bolt to move and tear off a chunk of case rim. Maybe...

The case failed to chamber, the case rim was sheared when I was trying to get the bolt carrier out.

A little water or oil down the barrel with a tight fitting dowel rod.

Several inches off liquid in thee barrel, insert the dowel and smack it sharply with a hammer.

The liquid won't compress but it will seek the path of least resistance creating a space between the round and the chamber and forcing it out.

Beiruty, I saw this earlier today, although I haven’t watched the whole thing. Has to do with head spacing issues in a Sig M400 due to heat buildup. It might be worth watching.

https://youtu.be/l_W3sXQYxkc