DeplorabusUnum
Member
^This is a good question. That would explain the wad of unburnt powder and the squib from the primer blast.
Bowling pin shoot gun fail
- Thread starter jkmo
- Start date
^This is a good question. That would explain the wad of unburnt powder and the squib from the primer blast.
That's a type III wadcutter.
It loads/seats the same as the 429421 swc. That 17.5 gr load is actually well below minimum recommended weight of 19.xx gr.
Some of the different wc's/hbwc's for the 44cal's. The top right (200gr) and bottom right (245gr) cast wc's are the type III wc's.
We REALLY need to know......
...did the bullet for sure come out on the first shot? It seems that it did. So I'm going with the notion that it did and the bullet jumped crimp so that when the second shot was fired, the gases went around the bullet, didn't have enough containment for a complete burn and stuck the squib in the barrel.
...did the bullet for sure come out on the first shot? It seems that it did. So I'm going with the notion that it did and the bullet jumped crimp so that when the second shot was fired, the gases went around the bullet, didn't have enough containment for a complete burn and stuck the squib in the barrel.
I have a feeling that only part of the powder was contaminated. If the primer set off the un-contaminated powder and pushed the bad powder and bullet into the forcing cone/barrel area then the ignited powder would have to escape through the gap giving the extra loud bang.
Just a guess.
Just a guess.
Baltimoreed11754
Member
A couple of questions for the op. Do you deprime your brass before cleaning and how do you clean them? Wet or dry? Do you prime on the press? Wondering if there was a buildup of something in the case, the case got primed and reloaded. When it was fired the primer went off and moved the plug, powder and bullet out of the case into the barrel. At some point part of the powder detonated in the cylinder gap as opposed to the case which made the boom. Just my wag.
JJackson
Member
Just tagging in as this is intriguing.
Very interesting situation.
Hope your gun is OK jkmo.
Very interesting situation.
Hope your gun is OK jkmo.
I'm not going to say what happened 1 way or the other.
I have from personal experience had something similar happen. I used to tumble my cases using corn cob media. A piece of corn cob got stuck in the flash hole. (no idea how with the recapping pin didn't remove it). Anyway:
The corn cob blocked the flash hole
The primer blew it out and only ignited part of the powder
What little powder burned had enough pressure to un-crimp the bullet
The bullet went forward like a squib load and stuck in the bbl
The powder had a secondary burn and there was no stop-gap/resistance from the bullet.
The cylinder gap let the pressure/noise out and the rest of the un-burnt powder simple went every
No different than a delayed reaction/burn after the bullet lodges in the leade/bbl in a rifle. The only difference is that the revolver has a gap between the bbl/cylinder.
Experienced the same thing using match ammo in a 22lr/ 20* temperatures. That's why they make special ammo for cold weather.
Again, not saying this is what happened. But I've personally experienced similiar events.
I have from personal experience had something similar happen. I used to tumble my cases using corn cob media. A piece of corn cob got stuck in the flash hole. (no idea how with the recapping pin didn't remove it). Anyway:
The corn cob blocked the flash hole
The primer blew it out and only ignited part of the powder
What little powder burned had enough pressure to un-crimp the bullet
The bullet went forward like a squib load and stuck in the bbl
The powder had a secondary burn and there was no stop-gap/resistance from the bullet.
The cylinder gap let the pressure/noise out and the rest of the un-burnt powder simple went every
No different than a delayed reaction/burn after the bullet lodges in the leade/bbl in a rifle. The only difference is that the revolver has a gap between the bbl/cylinder.
Experienced the same thing using match ammo in a 22lr/ 20* temperatures. That's why they make special ammo for cold weather.
Again, not saying this is what happened. But I've personally experienced similiar events.
Last edited:
cmj8591
Member
Light bullet with a slow powder. The powder needs increasing pressure to properly burn. With a heavy bullet, the pressure builds until the resistance caused by the weight of the bullet is overcome and it starts down the bore along with the burning powder. In this microsecond, the powder begins to consume itself and continues to do so all of the way down the bore and even after the bullet leaves the bore. That's why you see muzzle flash. Not all of the powder burns. Sometimes you can see some of it remaining in the barrel after the shot. On heavily used indoor ranges you can sweep up the unburnt powder in front of the firing positions. In this particular case, the primer pressurized the case and started the powder closest to it burning. Because the bullet was light and the powder was slow, there was not enough resistance to build enough pressure to ignite the entire charge. What pressure did build pushed the remaining powder and the bullet into the bore. When the pressure reached the gap it was vented out of the gun, the pressure dropped and the bullet and remaining powder stopped in the barrel.
Was there a lot of smoke?
Put a new bolt in as it was kinda sticky going back and forth. Might have got peened some and he does occasionally shoot some hot ones.
Of course the bolt plunger went flying and lost so had to order that too.
Recoil shield and forcing cone had much gunked gun powder
Of course the bolt plunger went flying and lost so had to order that too.
Recoil shield and forcing cone had much gunked gun powder
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