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Is it possible for a Barrett M99 to have an OOBD?
6/8/2011 12:32:49 PM
Was reading up on some .50 BMG kabooms and it seems like it's typically limited to boutique-shop type .50 BMG's with the exception of at least one M82A1. However, never seen or heard of any kabooms with Barrett M99's (or M95's for that matter). With the design, is it even possible?
6/8/2011 12:38:15 PM
Nothing is unpossible.
The AR platform is technically "not possible" to have an OOBD, even though it does happen. Typically a faulty firing pin, crud, FOD, etc.
The AR platform is technically "not possible" to have an OOBD, even though it does happen. Typically a faulty firing pin, crud, FOD, etc.
6/8/2011 1:03:41 PM
Ok... well, let me phrase another question then: Has there ever been a known incident of an OOBD (or even a kaboom) with a Barrett M99?
6/8/2011 1:08:18 PM
Originally Posted By jtb33:
Ok... well, let me phrase another question then: Has there ever been a known incident of an OOBD (or even a kaboom) with a Barrett M99?
Ok... well, let me phrase another question then: Has there ever been a known incident of an OOBD (or even a kaboom) with a Barrett M99?
That's painful just thinking about it.
6/8/2011 3:21:20 PM
I think I understand the concept (protruding firing pin) but what does OOBD stand for specificly?
6/8/2011 3:23:28 PM
Originally Posted By JJ1234567:
I think I understand the concept (protruding firing pin) but what does OOBD stand for specificly?
I think I understand the concept (protruding firing pin) but what does OOBD stand for specificly?
Out of battery discharge; the round firing off before the bolt is completely closed.
6/8/2011 3:27:45 PM
Gotcha, that does not sound fun.
6/8/2011 8:04:28 PM
The only M82A1 I remember reading about wasn't a typical OOBD.... it was a hangfire that the operator immediately ejected. The round finally lit off as it was being extracted.
That's why I _ALWAYS_ respect the 30-45 second rule when the gun goes CLICK instead of BANG... most always to realize that I lost count of the rounds, and just dropped the hammer on an empty chamber
That's why I _ALWAYS_ respect the 30-45 second rule when the gun goes CLICK instead of BANG... most always to realize that I lost count of the rounds, and just dropped the hammer on an empty chamber
6/8/2011 8:08:06 PM
Originally Posted By Tom488:
The only M82A1 I remember reading about wasn't a typical OOBD.... it was a hangfire that the operator immediately ejected. The round finally lit off as it was being extracted.
That's why I _ALWAYS_ respect the 30-45 second rule when the gun goes CLICK instead of BANG... most always to realize that I lost count of the rounds, and just dropped the hammer on an empty chamber
The only M82A1 I remember reading about wasn't a typical OOBD.... it was a hangfire that the operator immediately ejected. The round finally lit off as it was being extracted.
That's why I _ALWAYS_ respect the 30-45 second rule when the gun goes CLICK instead of BANG... most always to realize that I lost count of the rounds, and just dropped the hammer on an empty chamber
Pretty difficult to do that on a Barrett M99.
6/8/2011 10:28:39 PM
Originally Posted By jtb33:
Pretty difficult to do that on a Barrett M99.
Originally Posted By Tom488:
The only M82A1 I remember reading about wasn't a typical OOBD.... it was a hangfire that the operator immediately ejected. The round finally lit off as it was being extracted.
That's why I _ALWAYS_ respect the 30-45 second rule when the gun goes CLICK instead of BANG... most always to realize that I lost count of the rounds, and just dropped the hammer on an empty chamber
The only M82A1 I remember reading about wasn't a typical OOBD.... it was a hangfire that the operator immediately ejected. The round finally lit off as it was being extracted.
That's why I _ALWAYS_ respect the 30-45 second rule when the gun goes CLICK instead of BANG... most always to realize that I lost count of the rounds, and just dropped the hammer on an empty chamber
Pretty difficult to do that on a Barrett M99.
The part I hate is:
click......
.tick...tick....tick...tick......tick...tick...tick....
You can bet I am counting the seconds before that bolt goes back!!!
6/9/2011 12:08:13 AM
Don't make me post the pic of the mangled hand again. 
6/9/2011 8:53:03 PM
Originally Posted By ARsR4ME:
Don't make me post the pic of the mangled hand again.
Don't make me post the pic of the mangled hand again.
The mangled hand safety warning was because some dumb private wanted to use a 50 round for a hammer...not an OOBD :P
6/10/2011 8:29:36 AM
You can't have an OOBD in 99. The lug design prevents it. If you look at the interrupted thread pattern of the 99, the cartridge is held well out of battery before the firing pin can reach it.
The cam on the undersideof the bolt prevents the fp from reaching the primer unless the bolt is completely closed. It can not reach it.
The cam on the undersideof the bolt prevents the fp from reaching the primer unless the bolt is completely closed. It can not reach it.
6/10/2011 8:47:01 AM
Originally Posted By 50cal:
You can't have an OOBD in 99. The lug design prevents it. If you look at the interrupted thread pattern of the 99, the cartridge is held well out of battery before the firing pin can reach it.
The cam on the undersideof the bolt prevents the fp from reaching the primer unless the bolt is completely closed. It can not reach it.
You can't have an OOBD in 99. The lug design prevents it. If you look at the interrupted thread pattern of the 99, the cartridge is held well out of battery before the firing pin can reach it.
The cam on the undersideof the bolt prevents the fp from reaching the primer unless the bolt is completely closed. It can not reach it.
An AR15 prevents the firing pin from contacting until the bolt is fully in battery, no? Yet there have been OOBD in AR15s.
I'm just saying...I agree that is is extremely unlikely....but I would never state it is impossible.
6/10/2011 9:50:41 AM
Originally Posted By NAM:
An AR15 prevents the firing pin from contacting until the bolt is fully in battery, no? Yet there have been OOBD in AR15s.
I'm just saying...I agree that is is extremely unlikely....but I would never state it is impossible.
Originally Posted By 50cal:
You can't have an OOBD in 99. The lug design prevents it. If you look at the interrupted thread pattern of the 99, the cartridge is held well out of battery before the firing pin can reach it.
The cam on the undersideof the bolt prevents the fp from reaching the primer unless the bolt is completely closed. It can not reach it.
You can't have an OOBD in 99. The lug design prevents it. If you look at the interrupted thread pattern of the 99, the cartridge is held well out of battery before the firing pin can reach it.
The cam on the undersideof the bolt prevents the fp from reaching the primer unless the bolt is completely closed. It can not reach it.
An AR15 prevents the firing pin from contacting until the bolt is fully in battery, no? Yet there have been OOBD in AR15s.
I'm just saying...I agree that is is extremely unlikely....but I would never state it is impossible.
Imterestimg thread....my first M99 arrives at my dealer on Monday.
6/10/2011 10:43:33 AM
Originally Posted By 50cal:
You can't have an OOBD in 99. The lug design prevents it. If you look at the interrupted thread pattern of the 99, the cartridge is held well out of battery before the firing pin can reach it.
The cam on the undersideof the bolt prevents the fp from reaching the primer unless the bolt is completely closed. It can not reach it.
You can't have an OOBD in 99. The lug design prevents it. If you look at the interrupted thread pattern of the 99, the cartridge is held well out of battery before the firing pin can reach it.
The cam on the undersideof the bolt prevents the fp from reaching the primer unless the bolt is completely closed. It can not reach it.
I was waiting for you, in particular, to chime in. Thanks.
6/10/2011 12:39:10 PM
No problem. Glad to help.
6/10/2011 2:57:02 PM
Originally Posted By JJ1234567:
The mangled hand safety warning was because some dumb private wanted to use a 50 round for a hammer...not an OOBD :P
The mangled hand safety warning was because some dumb private wanted to use a 50 round for a hammer...not an OOBD :P
Well.... the round wasn't in battery, was it?
6/10/2011 3:32:27 PM
Originally Posted By Tom488:
Well.... the round wasn't in battery, was it?
Originally Posted By JJ1234567:
The mangled hand safety warning was because some dumb private wanted to use a 50 round for a hammer...not an OOBD :P
The mangled hand safety warning was because some dumb private wanted to use a 50 round for a hammer...not an OOBD :P
Well.... the round wasn't in battery, was it?
It probably was, but in a Mark 1 HAND, not a Barrett M99.
6/10/2011 6:03:47 PM
Originally Posted By NAM:
An AR15 prevents the firing pin from contacting until the bolt is fully in battery, no? Yet there have been OOBD in AR15s.
I'm just saying...I agree that is is extremely unlikely....but I would never state it is impossible.
Originally Posted By 50cal:
You can't have an OOBD in 99. The lug design prevents it. If you look at the interrupted thread pattern of the 99, the cartridge is held well out of battery before the firing pin can reach it.
The cam on the undersideof the bolt prevents the fp from reaching the primer unless the bolt is completely closed. It can not reach it.
You can't have an OOBD in 99. The lug design prevents it. If you look at the interrupted thread pattern of the 99, the cartridge is held well out of battery before the firing pin can reach it.
The cam on the undersideof the bolt prevents the fp from reaching the primer unless the bolt is completely closed. It can not reach it.
An AR15 prevents the firing pin from contacting until the bolt is fully in battery, no? Yet there have been OOBD in AR15s.
I'm just saying...I agree that is is extremely unlikely....but I would never state it is impossible.
Nam,
The AR-15 bolt and carrier has NOTHING to do with one of the 50 BMG uppers pinned to an AR-15 lower. It depends on the design of each one of the uppers and its bolt / firing pin. When I was looking at a BOHICA upper. Chris cut a slot in the bolt wall for the hammer to swing through to gain access to the firing pin. But it did not at that time (and I dont know if it has changed or not) the firing pin has no active means of retracting the firing pin. I own a Ferret 50 and can tell you that there is a camming system that actively pulls the firing pin back and will not allow the hammer to force it forward till the bolt is about 90% closed or there about.
6/10/2011 6:43:03 PM
Originally Posted By Max-Paul:
Nam,
The AR-15 bolt and carrier has NOTHING to do with one of the 50 BMG uppers pinned to an AR-15 lower. It depends on the design of each one of the uppers and its bolt / firing pin. When I was looking at a BOHICA upper. Chris cut a slot in the bolt wall for the hammer to swing through to gain access to the firing pin. But it did not at that time (and I dont know if it has changed or not) the firing pin has no active means of retracting the firing pin. I own a Ferret 50 and can tell you that there is a camming system that actively pulls the firing pin back and will not allow the hammer to force it forward till the bolt is about 90% closed or there about.
Nam,
The AR-15 bolt and carrier has NOTHING to do with one of the 50 BMG uppers pinned to an AR-15 lower. It depends on the design of each one of the uppers and its bolt / firing pin. When I was looking at a BOHICA upper. Chris cut a slot in the bolt wall for the hammer to swing through to gain access to the firing pin. But it did not at that time (and I dont know if it has changed or not) the firing pin has no active means of retracting the firing pin. I own a Ferret 50 and can tell you that there is a camming system that actively pulls the firing pin back and will not allow the hammer to force it forward till the bolt is about 90% closed or there about.
Well aware of it. I own a Ferret .50 as well.
I was simply pointing out that, although unlikely, there is always a possibility. In theory, the AR15 CANNOT fire out of battery. But it has happened.
6/11/2011 2:13:29 AM
Give all the wrong circumstances at the wrong time, it's possible for any rifle to have an OOBD...Out Of Battery Detonation. Open the bolt on a hanfire and you've got an OOBD. Jam the firingpin forward with crud and ram the bolt home and you can have an OOBD. I've read about OOBDs in FALs, M14s, AKs, a Barrett M82, and yes, AR-based 50BMGs. I've witnessed AKs and the ALS OOBD.
Anything human made is subject to failure. Murphy is a bitch. But most the time, if you pay attention, you won't have an OOBD. All the stars have to line up for that to happen on almost any rifle.
-David
Edgewood, NM
Anything human made is subject to failure. Murphy is a bitch. But most the time, if you pay attention, you won't have an OOBD. All the stars have to line up for that to happen on almost any rifle.
-David
Edgewood, NM
6/11/2011 10:25:01 AM
Originally Posted By NAM:
Well aware of it. I own a Ferret .50 as well.
I was simply pointing out that, although unlikely, there is always a possibility. In theory, the AR15 CANNOT fire out of battery. But it has happened.
Originally Posted By Max-Paul:
Nam,
The AR-15 bolt and carrier has NOTHING to do with one of the 50 BMG uppers pinned to an AR-15 lower. It depends on the design of each one of the uppers and its bolt / firing pin. When I was looking at a BOHICA upper. Chris cut a slot in the bolt wall for the hammer to swing through to gain access to the firing pin. But it did not at that time (and I dont know if it has changed or not) the firing pin has no active means of retracting the firing pin. I own a Ferret 50 and can tell you that there is a camming system that actively pulls the firing pin back and will not allow the hammer to force it forward till the bolt is about 90% closed or there about.
Nam,
The AR-15 bolt and carrier has NOTHING to do with one of the 50 BMG uppers pinned to an AR-15 lower. It depends on the design of each one of the uppers and its bolt / firing pin. When I was looking at a BOHICA upper. Chris cut a slot in the bolt wall for the hammer to swing through to gain access to the firing pin. But it did not at that time (and I dont know if it has changed or not) the firing pin has no active means of retracting the firing pin. I own a Ferret 50 and can tell you that there is a camming system that actively pulls the firing pin back and will not allow the hammer to force it forward till the bolt is about 90% closed or there about.
Well aware of it. I own a Ferret .50 as well.
I was simply pointing out that, although unlikely, there is always a possibility. In theory, the AR15 CANNOT fire out of battery. But it has happened.
Ok, if just injecting the AR-15 in .223 for a minute. Then I agree with the bolt blocking the hammer till it is in battery. But that still leaves the FP in a passive position (aka has nothing pulling it back). If crud builds up or a ruptured primer wields it in the forward position. Then even the AR-15 can have a OOBD. I agree and think that David summed it up. Only thing David, these rifles have neither tits or wheels. So, how can this be?
