AR Sponsor
Posted: 2/7/2012 2:47:34 PM EDT
| What would happen to an AR-15 if such were to happen followed by a good round? |
|
Quoted:
What would happen to an AR-15 if such were to happen followed by a good round? Well, in any gun if the bullet lodged in the barrel the next shot would be a KABOOM. That's why after a squib you shut everything down, unload and verify that the chamber/bore is clear. I would also set that batch of ammo aside and deal with it in the appropriate manner. |
|
Quoted:
Quoted:
What would happen to an AR-15 if such were to happen followed by a good round? Well, in any gun if the bullet lodged in the barrel the next shot would be a KABOOM. That's why after a squib you shut everything down, unload and verify that the chamber/bore is clear. How would you know you had a squib say in the middle of a shooting competition/fire fight? Would you get a full cycle of the bolt to load a fresh round? |
|
Quoted:
Quoted:
Quoted:
What would happen to an AR-15 if such were to happen followed by a good round? Well, in any gun if the bullet lodged in the barrel the next shot would be a KABOOM. That's why after a squib you shut everything down, unload and verify that the chamber/bore is clear. How would you know you had a squib say in the middle of a shooting competition/fire fight? Would you get a full cycle of the bolt to load a fresh round? The squibs I've had were very noticeable "duds". |
|
Well, tell me what you think arfcom:
Finished a 3gun stage, last rifle stage of the day, go to clear my rifle and the bolt is jammed shut. Smack the butt against a hard barrier downward and pull the charging handle. Bolt breaks free, clear my weapon. I notice little specs, turns out to be grains of gun powder, wasn't sure at the time when I pop the take-down pin look inside the receiver everything appears fine cept grains of powder all over and then I case my rifle because we had to hurry to the last stage and was running out of time. Grains of powder were also on the outside of the receiver, seemed to congregate around my take-down and pivot pins (maybe due to some oil around them). Cleaning my rifle now, bullet lodged in barrel near the throat. Popped out with an easy tap on the clean rod just using my hand on the handle and holding the receiver with my other hand. So, a squib OR the bullet just got jammed up to the rifling, stuck, and then separated from the casing spilling powder all over the inside of my receiver? |
|
Even during competition, listen to the sound of the round, Squibs have a distinctive sound, and in competition, its worth stopping, RO may stop it if they are paying close attention.
I also had a squib in a pistol and couldn't load the magazine, tried two of them and we stopped and determined it was a squib that fortunately didn't go too far down the barrel. Quoted:
Quoted:
Quoted:
What would happen to an AR-15 if such were to happen followed by a good round? Well, in any gun if the bullet lodged in the barrel the next shot would be a KABOOM. That's why after a squib you shut everything down, unload and verify that the chamber/bore is clear. How would you know you had a squib say in the middle of a shooting competition/fire fight? Would you get a full cycle of the bolt to load a fresh round? |
|
it would'nt cycle. someone not payin attention may eject the empty and chamber a fresh round. For the BIG KABOOM!
That crap Indian surplus 7.62x51 years back did in a few rifle. OHM 89 headstamp! it was enough to lodge the bullet in the bore ahead of the chamber allowing another round to be racked in. If something doest'nt sound or feel right check your rife! |
| It depends how far the bullet travels down the barrel. I had a KB on one of my pistols using a friend reload. The bullet was lodged half way in the pipe. We did not know because it cycled the slide and the next shot was louder than normal. Also it locked up the slide up and still locked the slide up after the next round. It puzzled me until I teared it down and looked in the barrel to find a nice big ring in there. Lesson learned. |
|
Quoted:
Well, tell me what you think arfcom: Finished a 3gun stage, last rifle stage of the day, go to clear my rifle and the bolt is jammed shut. Smack the butt against a hard barrier downward and pull the charging handle. Bolt breaks free, clear my weapon. I notice little specs, turns out to be grains of gun powder, wasn't sure at the time when I pop the take-down pin look inside the receiver everything appears fine cept grains of powder all over and then I case my rifle because we had to hurry to the last stage and was running out of time. Grains of powder were also on the outside of the receiver, seemed to congregate around my take-down and pivot pins (maybe due to some oil around them). Cleaning my rifle now, bullet lodged in barrel near the throat. Popped out with an easy tap on the clean rod just using my hand on the handle and holding the receiver with my other hand. So, a squib OR the bullet just got jammed up to the rifling, stuck, and then separated from the casing spilling powder all over the inside of my receiver? I'd say maybe a weak crimp on the round. I'm sure the leade in the chamber would be quite long enough that the bullet could'nt contact the rifling unless it worked it's way out of the case mouth first. |
|
Quoted:
OR the bullet just got jammed up to the rifling, stuck, and then separated from the casing spilling powder all over the inside of my receiver? I believe that when your bolt was stuck while you were unloading, it was pulling on a cartridge that had its bullet stuck in the throat. You pulled the case off the bullet when the bolt finally broke free. The neck of the cartridge must not have been sized properly to grip the bullet.. Edit: A Wylde chamber may not be the best choice for lotsa rounds between cleanings. (less tolerant of residue buildup) I would be tempted to run a 5.56 reamer into that chamber for what you are doing. |
|
Quoted:
Quoted:
OR the bullet just got jammed up to the rifling, stuck, and then separated from the casing spilling powder all over the inside of my receiver? I believe that when your bolt was stuck while you were unloading, it was pulling on a cartridge that had its bullet stuck in the throat. You pulled the case off the bullet when the bolt finally broke free. The neck of the cartridge must not have been sized properly to grip the bullet.. Edit: A Wylde chamber may not be the best choice for lotsa rounds between cleanings. (less tolerant of residue buildup) I would be tempted to run a 5.56 reamer into that chamber for what you are doing. It gets cleaned between each shooting most of the time, pretty sure I cleaned it since the time before this. Tops there would have been <500rds through since last cleaning. ETA - when I do clean it is nearly spotless. I don't know that I would question JP using a Wylde chamber for 3gun barrels, unless I shouldn't be running M193 ammo in it. |
|
Quoted:
Quoted:
Quoted:
What would happen to an AR-15 if such were to happen followed by a good round? Well, in any gun if the bullet lodged in the barrel the next shot would be a KABOOM. That's why after a squib you shut everything down, unload and verify that the chamber/bore is clear. How would you know you had a squib say in the middle of a shooting competition/fire fight? Would you get a full cycle of the bolt to load a fresh round? no gas pressure would make it to the gas port to cycle the action in an autoloader. but like I said if the shooter did'nt pay attention and the squib got past the chamber and they jacked another round in behind it. not good! Those of us who reload for AR's don't always crimp our rounds. I don't crimp most of my hunting ammo. I've loaded enough over the years that I can feel my neck tension when I seat my bullets. Sometimes I use bushing dies also.Alot of time I'll use the forward assist so I'm not letting the bolt slam home. If you take a pole in the reloading section you'll find about a 1/3 don't crimp there AR loads. I NEVER let anyone use my ammo! |
|
Quoted:
Quoted:
Quoted:
OR the bullet just got jammed up to the rifling, stuck, and then separated from the casing spilling powder all over the inside of my receiver? I believe that when your bolt was stuck while you were unloading, it was pulling on a cartridge that had its bullet stuck in the throat. You pulled the case off the bullet when the bolt finally broke free. The neck of the cartridge must not have been sized properly to grip the bullet.. Edit: A Wylde chamber may not be the best choice for lotsa rounds between cleanings. (less tolerant of residue buildup) I would be tempted to run a 5.56 reamer into that chamber for what you are doing. It gets cleaned between each shooting most of the time, pretty sure I cleaned it since the time before this. Tops there would have been <500rds through since last cleaning. ETA - when I do clean it is nearly spotless. I don't know that I would question JP using a Wylde chamber for 3gun barrels, unless I shouldn't be running M193 ammo in it. Well, I would want to identify the cause for certain. You might contact JP and see what they say. Let them do the diagnosis. Don't let on, but they should offer to do a chamber casting. (or re-ream it and check headspace) Do the contact via email so that there is a record. |
|
Quoted:
I would maybe consider doing that. Wouldn't I have ran into this issue before though? yes. I did'nt see where you said how many rounds you have through this rifle. My honest guess would be in the ammo poor crimp out of spec bullet, brass. you have to understand what the leade is of a chamber or freebore as some folks call it. this is one were 223, and 5.56 chambers differ along with hybrid chambers. A longer leade or freebore before the bullet meets reistance allows the pressure to drop off a bit more. this is where you might here people say there popping primers shooting 5.56 ammo in there AR. someone will usually reply they have a short chamber or 223 chamber. 5.56 chambers have a longer leade than 223. among other things. I'll tell you right now theres noway a loaded round that will fit in a standard AR magazine will come in contact with the lands of that rifle barrel! unless that bullet eased out of that case mouth when you droppped the bolt. you would have been poppin primers! A very poor practice would be to say drop the bolt on the same round 3-4+ times. you know chamber a round, clear the weapon pick up the round and put in back in the magazine, repeat. this with loosen any crimp over time. |
| The real question is can a bullet so low on pressure just make it past the gas port and still have enough to chamber a new round? The thing can't load a new round if it didn't and I haven't seen a kaboom that was out of that area. I think manya kabooms were operator error or bad ammo and the only thing to blame is a squib round, as who'd actually admit to it. |
|
you said the bullet was just forward of the chamber so there is no way the rifle could have cycled from that round since it has not reached the gas port. Your thought on the round coming apart is the only logical answer. Not an issue for JP, and not about your Wylde chamber, it is a ammo thing. If you are doing competition I assume you are using decent ammo, therefor it is just that one in 500,000 that wasn't quite right. keep shooting and you eventually encounter more. Just always be smart enough to stop when you sense a problem, as you did this time.
|
|
Quoted:
Well, tell me what you think arfcom: Finished a 3gun stage, last rifle stage of the day, go to clear my rifle and the bolt is jammed shut. Smack the butt against a hard barrier downward and pull the charging handle. Bolt breaks free, clear my weapon. I notice little specs, turns out to be grains of gun powder, wasn't sure at the time when I pop the take-down pin look inside the receiver everything appears fine cept grains of powder all over and then I case my rifle because we had to hurry to the last stage and was running out of time. Grains of powder were also on the outside of the receiver, seemed to congregate around my take-down and pivot pins (maybe due to some oil around them). Cleaning my rifle now, bullet lodged in barrel near the throat. Popped out with an easy tap on the clean rod just using my hand on the handle and holding the receiver with my other hand. So, a squib OR the bullet just got jammed up to the rifling, stuck, and then separated from the casing spilling powder all over the inside of my receiver? What happened was there was oil or something in the casing that messed up some of the powder. Happennd with me once. The round was nearly subsonic. It left a trail or powder down the barrel and in the receiver. It didn't cycle the bolt. 
|
|
I think my shells are getting hot while in battery and the casing is just on the larger side of spec and expanding. At the finish of two short range rifle stages I had to give a little extra help extracting to clear my weapon but the bullet and casing stayed together with no noticeable difference in bullet seating. Finish the long range stage, not so many shots a little more time between shots and shell came out no prob. Hopefully get to test in a week or two to see what it does. Run a few rounds fast like a match.
ETA - fairly certain it wasn't a squib. |
AR Sponsor