What Happens When Firing Case (Smokeless Powder) To Clear Barrel Obstruction.

[arakboss]

Imagine you have a projectile lodged half way down barrel and a primed case with appropiate load of powder is fired to try and blow it out. What do you think will happen?

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[Xaevian]

Imagine you have a projectile lodged half way down barrel and a primed case with appropiate load of powder is fired to try and blow it out. What do you think will happen?

Depends. Pressure is a wave. It will spike at the site of the obstruction. Mid barrel is not as sturdy as the chamber where this normally occurs. Too big of a spike, the barrel will bulge or burst as it tries to contain the sudden spike of pressure. The thinner the barrel taper, the higher chances of failure.

 

[Andy54Hawken]

If you have a barrel obstruction....do not try to shoot it out....it will be bad for you and your firearm

Also related....it is wise to load , use , and shoot your firearms as they were designed to be loaded , used or shot.....
Andy

 

[titsonritz]

If you have a barrel obstruction....do not try to shoot it out....it will be bad for you and your firearm

Isn't that one of the ten rules of firearm safety before it was whittled down to four for those who couldn't remember/count to ten?
I can't remember...

 

[VinnieBoomBah]

Also doubt the case will expand to the chamber walls on firing like it would with a bullet in the case so I would expect significant gas blowby coming out of the action

 

[ilikegunspdx]

Imagine you have a projectile lodged half way down barrel and a primed case with appropiate load of powder is fired to try and blow it out. What do you think will happen?

Explained in a high level of detail here FYI:

 

[Certaindeaf]

The "appropriate load of powder" would be zero since there's a bullet stuck in the barrel.

 

[Andy54Hawken]

Isn't that one of the ten rules of firearm safety before it was whittled down to four for those who couldn't remember/count to ten?
I can't remember...

Perhaps the reason why the 10 were whittled down to four were due to lost fingers while experimenting....
Andy

 

[arakboss]

What happened to The Crow star Brandon Lee? Story behind tragic accidental death of Bruce Lee’s son

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Edit: We know Brandon didn't survive the clearing of this obstruction but I wonder how the gun made out?

 

[CountryGent]

The "appropriate load of powder" would be zero since there's a bullet stuck in the barrel.

^. This. I don't know why this is even a question.

 

[No_Regerts]

If I could remove the barrel or had a straight shot from the breech, I'd just use a cleaning rod or dowel and push it out. Otherwise, get an auger attachment for your cleaning rod and screw it into the bullet. Then pull it out.

 

[TTSX]

Why don't you make a squib happen, then start your experiment, beginning at 1 grain and ending at kaboom. Be sure to let us know the results!

 

[arakboss]

^. This. I don't know why this is even a question.

We have breech loading methods which could be considered a bore obstruction near the chamber. Then we have assorted launchers that attach to muzzle end of barrels, which could be considered an obstruction near the muzzle. Those are generally accepted as safe. I am trying to understand why a barrel obstruction is dangerous when it occurs between the other two points that are safe?

 

[No_Regerts]

Why don't you make a squib happen, then start your experiment, beginning at 1 grain and ending at kaboom. Be sure to let us know the results!

In my head, I see a 300 Ultra Mag case filled to the neck with CFE Pistol.

 

[Xaevian]

why a barrel obstruction is dangerous when it occurs between the other two points that are safe?

One is by design, the other is not.

 

[No_Regerts]

We have breech loading methods which could be considered a bore obstruction near the chamber. Then we have assorted launchers that attach to muzzle end of barrels, which could be considered an obstruction near the muzzle. Those are generally accepted as safe. I am trying to understand why a barrel obstruction is dangerous when it occurs between the other two points that are safe?

Kata yes or Kata no. No so-so.

 

[CountryGent]

If I could remove the barrel or had a straight shot from the breech, I'd just use a cleaning rod or dowel and push it out. Otherwise, get an auger attachment for your cleaning rod and screw it into the bullet. Then pull it out.

Exactly. (I recently had a bullet stuck in an M1 Carbine. Pounding it out with a cleaning rod did the trick. And nothing went kaboom.)

We have breech loading methods which could be considered a bore obstruction near the chamber. Then we have assorted launchers that attach to muzzle end of barrels, which could be considered an obstruction near the muzzle. Those are generally accepted as safe.

This video might be of interest, concerning rifle grenade attachments.

 

[arakboss]

I want to put together a kit of cheap tools to use for clearing bore obstructions. What do you use or recommend? Home Depot availability would be best. I want the kit to cover calibers from 22 to 50cal.

 

[No_Regerts]

I'd get a couple of cleaning rods that have handles that allow the rod to spin, get a couple augers, a couple of jags, and a rubber mallet. For pistols, a wood dowel would probably work fine in the place of a cleaning rod.

 

[bionic knees]

Also doubt the case will expand to the chamber walls on firing like it would with a bullet in the case so I would expect significant gas blowby coming out of the action

THIS!!