Is it possible....???

[voola]

B"H

Hello guys I was watching a video on youtube where the AR blows up in this guys face, and a guy who commented on that video said "....this fool had TWO (2) bullets up the bore! That's what's also known as a barrel obstruction!" Is it really possible for that to happen ? ( 2 bullets in a bore )? how do you avoid it?
Thank you

[mrnyman]

Yes it happens all the time, you avoid it by paying attention to what you are doing, if you fire a round and didnt see or hear an impact you know you still have that round.

Very prevalent with cheap ammo. Hardly ever happen with quality ammo but it can, pay attention , an AR is an Aluminum gun that fires a high pressure round dishing out a whopping 56,000 cup. That is over 3 times the pressure of a .45 acp round to give you a reference point.

[Noah_Zark]

. . . an AR is an Aluminum gun that fires a high pressure round dishing out a whopping 56,000 cup . . .

True, but not the whole truth.

The barrel, barrel extension, and bolt are all steel. Those parts happen to be attached to an alloy receiver. In an AR, the the barrel, barrel extension, and bolt are the components that take the stress of a cartridge firing. For example, witness the 50 BMG guns built on AR platforms using scaled-up uppers. It's still the barrel, barrel extension, and bolt that take the stress of firing.

As to "two bullets in the barrel," that is what happens with a squib or misfire; the cartridge pushes the bullet into the rifling far enough such that another cartridge can be chambered and the bolt go into battery. Firing the chambered cartridge behind a stuck bullet is somewhat akin to firing the cartridge with a bullet that's twice the mass of what it should be -- a significant overcharge with a resulting (using the technical term) kaboom.

When shooting, and especially on paper or other non-reactive targets, the shooter must be at all times aware of his or her weapon's "normal" sounds and behavior. If a particular cartridge doesn't "sound" or "feel" right -- weak report, low recoil, high recoil, etc., OR if there's unusual behavior -- smoke and gas coming out the receiver, lots of partially burned powder are both giveaways for a squib round -- STOP FIRING and open and inspect the weapon for problems, INCLUDING barrel obstructions.

Noah

[fritz1]

True, but not the whole truth.

The barrel, barrel extension, and bolt are all steel. Those parts happen to be attached to an alloy receiver. In an AR, the the barrel, barrel extension, and bolt are the components that take the stress of a cartridge firing. For example, witness the 50 BMG guns built on AR platforms using scaled-up uppers. It's still the barrel, barrel extension, and bolt that take the stress of firing.

As to "two bullets in the barrel," that is what happens with a squib or misfire; the cartridge pushes the bullet into the rifling far enough such that another cartridge can be chambered and the bolt go into battery. Firing the chambered cartridge behind a stuck bullet is somewhat akin to firing the cartridge with a bullet that's twice the mass of what it should be -- a significant overcharge with a resulting (using the technical term) kaboom.

When shooting, and especially on paper or other non-reactive targets, the shooter must be at all times aware of his or her weapon's "normal" sounds and behavior. If a particular cartridge doesn't "sound" or "feel" right -- weak report, low recoil, high recoil, etc., OR if there's unusual behavior -- smoke and gas coming out the receiver, lots of partially burned powder are both giveaways for a squib round -- STOP FIRING and open and inspect the weapon for problems, INCLUDING barrel obstructions.

Noah

Good advice Noah and good explanation.