What are the errors here (Jam explosion) - Page 3
You are Unregistered, please register to use all of the features of FirearmsTalk.com!    
Firearm & Gun Forum - FireArmsTalk.com > Long Guns > Auto & Semi-Auto Discussion > AR-15 Discussion > What are the errors here (Jam explosion)

Reply
 
LinkBack Thread Tools Display Modes
Old 10-21-2013, 10:21 PM   #21
Moderator
FTF_MODERATOR.png
Feedback Score: 1 reviews
 
robocop10mm's Avatar
 
Join Date: Jul 2007
Location: Austin,Texas, by God!!
Posts: 10,737
Liked 3357 Times on 1738 Posts
Likes Given: 354

Default

#1. It is called a FORWARD ASSIST, not a forward FORCE! The heel of your hand should never contact the forwad assist. Think of it as a thumb button. As jjfuller pointed out, it helps lock the bolt when the action was cracked open. In the jungle, the rifle can become submerged in water. To drain the water from the barrel and gas tube, one must poinit the muzzle down and crack open the bolt breaking the seal. To get the bolt to lock, you must use the forward assist to HELP.

Anyone who told you to "slap" it closed with the heel of your hand is not your friend.

I saw a Colt A-3 come apart like that several years ago. Our investigation surmised it was caused by an improperly handloaded cartridge.

One mistake that can cause doom to any rifle is failure to trim the brass. 5.56 brass is on the long side when new. Once fired, resized, WAY TOO LONG. Long case jambs into the forcing cone causing pressures to sky rocket in a millisecond. You will not see a catastophic failure like that from just an over charged round. There is not enough room in the case to put that much powder in (assuming a proper powder for the case).
__________________
In life, strive to take the high road....It offers a better field of fire.
"Robo is right" Fuzzball
robocop10mm is offline  
Axxe55 Likes This 
Reply With Quote
Old 10-21-2013, 10:57 PM   #22
FTF_SUPPORTER.png
Feedback Score: 0 reviews
 
KJG67's Avatar
 
Join Date: Jan 2013
Location: Chicagoland
Posts: 1,428
Liked 996 Times on 509 Posts
Likes Given: 708

Default

Quote:
Originally Posted by purehavoc View Post
I have never in my 30+ years of shooting seen a squib in person until this weekend. We had our IL CCW class and I was helping on the firing line since we had 42 people to zip through . I was watching my end of the firing line and I heard a PSSSHHHHH two people down . The guy knew he had a malfunction and they were instructed in the class to stop and raise their hand if they had a malfunction and we would come assess the situation . I took his firearm , opened the cylinder and sure enough a big wad of wet powder just inside the bore and a .38 hunk of lead in the barrel about .75" up the barrel . Everyone was supposed to be using factory ammuntion and this guy decided to sneak in a few of his own rounds he hand reloaded back in 1978 ???? WTF . The instructor could have sent him packing but let him off the hook . IT really could have been a mess . The guy in the above video had someone looking over his shoulder several times . but if you continue to be a dumb ass what can you expect . If you have a issue like above with the AR it takes 10 seconds to push out the pin pull the BCG and give it a visual inspection . Stupid is as stupid does .
So will dumba$$ be using reloads to defend himself too, or did he get the picture? Did he at least yell 'Bang?'
__________________
.
I'm not dumb. I just have a command of thoroughly useless information.
- Bill Watterson, "Calvin", It's a Magical World
KJG67 is offline  
2
People Like This 
Reply With Quote
Old 10-21-2013, 10:57 PM   #23
Moderator
FTF_MODERATOR.png
Feedback Score: 0 reviews
 
c3shooter's Avatar
 
Join Date: Feb 2008
Location: Third bunker on the right,Central Virginia
Posts: 17,999
Liked 10549 Times on 4555 Posts
Likes Given: 1691

Default

Would call to your attention- In a GAS operated automatic, IF the bullet does not make it beyond the gas port, then the action will not cycle semi-auto, since no gas made it to the moving parts.

IF you fire, round does not eject, you MANUALLY eject it, and there is no bullet in the cartridge case- STOP RIGHT THERE. Odds are very high that you have a bullet lodged between chamber and gas port. Fire a live round with a bore obstruction, and it will not end well.

Unless I am in a firefight with the 3rd Godless Horde (Mechanized), I will stop and run a rod down the barrel to determine if it is clear.

And a question- show of hands, please- how many of you go to the range WITHOUT A ROD IN YOUR RANGE BOX? God knows enough folks have asked to borrow one of mine over the years.
__________________
What we have here is... failure- to communicate.
c3shooter is offline  
Axxe55 Likes This 
Reply With Quote
Old 10-21-2013, 11:19 PM   #24
Feedback Score: 0 reviews
 
jjfuller1's Avatar
 
Join Date: Jun 2011
Location: a place between here and there.
Posts: 4,632
Liked 1244 Times on 809 Posts
Likes Given: 792

Default

Quote:
Originally Posted by c3shooter View Post
Would call to your attention- In a GAS operated automatic, IF the bullet does not make it beyond the gas port, then the action will not cycle semi-auto, since no gas made it to the moving parts.

IF you fire, round does not eject, you MANUALLY eject it, and there is no bullet in the cartridge case- STOP RIGHT THERE. Odds are very high that you have a bullet lodged between chamber and gas port. Fire a live round with a bore obstruction, and it will not end well.

Unless I am in a firefight with the 3rd Godless Horde (Mechanized), I will stop and run a rod down the barrel to determine if it is clear.

And a question- show of hands, please- how many of you go to the range WITHOUT A ROD IN YOUR RANGE BOX? God knows enough folks have asked to borrow one of mine over the years.
Number one answer.. And yes I do have a cleaning rod with me at the range. Hehe
__________________
I have been a silent witness
to all of America's finest hours.
But my finest hour comes
when I am torn into strips and used as bandages
for my wounded comrades on the battlefield,
When I fly at half-mast to honor my soldiers,
Or when I lie in the trembling arms
of a grieving mother
at the graveside of her fallen son.
jjfuller1 is offline  
Axxe55 Likes This 
Reply With Quote
Old 10-22-2013, 09:45 AM   #25
Feedback Score: 0 reviews
 
Byron0022's Avatar
 
Join Date: Nov 2011
Posts: 622
Liked 42 Times on 36 Posts
Likes Given: 6

Default

Quote:
Originally Posted by purehavoc
I have never in my 30+ years of shooting seen a squib in person until this weekend. We had our IL CCW class and I was helping on the firing line since we had 42 people to zip through . I was watching my end of the firing line and I heard a PSSSHHHHH two people down . The guy knew he had a malfunction and they were instructed in the class to stop and raise their hand if they had a malfunction and we would come assess the situation . I took his firearm , opened the cylinder and sure enough a big wad of wet powder just inside the bore and a .38 hunk of lead in the barrel about .75" up the barrel . Everyone was supposed to be using factory ammuntion and this guy decided to sneak in a few of his own rounds he hand reloaded back in 1978 ???? WTF . The instructor could have sent him packing but let him off the hook . IT really could have been a mess . The guy in the above video had someone looking over his shoulder several times . but if you continue to be a dumb ass what can you expect . If you have a issue like above with the AR it takes 10 seconds to push out the pin pull the BCG and give it a visual inspection . Stupid is as stupid does .
He would have been sent packing if I was the boss. Lesson learned, maybe??
Byron0022 is offline  
 
Reply With Quote
Old 10-22-2013, 09:45 AM   #26
Feedback Score: 0 reviews
 
BigBizz87's Avatar
 
Join Date: Mar 2013
Location: Back Woods N.H.
Posts: 451
Liked 42 Times on 39 Posts
Likes Given: 1

Default

Quote:
Originally Posted by jjfuller1 View Post

Number one answer.. And yes I do have a cleaning rod with me at the range. Hehe
+1 always have a cleaning rod and shell extractor just in case something goes wrong.
__________________
Work Hard Play Hard
BigBizz87 is offline  
 
Reply With Quote
Old 10-22-2013, 10:29 PM   #27
Feedback Score: 0 reviews
 
Garadex's Avatar
 
Join Date: May 2011
Location: Kalifornia
Posts: 1,267
Liked 225 Times on 176 Posts
Likes Given: 228

Default

What an idiot; it would've been worth the time trying to see what went wrong rather then have your gun blow up.
__________________
I'm gonna stop you right there, you just said an AR-15 is a high-powered rifle. It is obvious you don't know anything about guns and I shall ignore anything you say from this point on.
Garadex is offline  
Axxe55 Likes This 
Reply With Quote
Old 10-23-2013, 02:57 PM   #28
Feedback Score: 0 reviews
 
purehavoc's Avatar
 
Join Date: Oct 2011
Location: Not where I wanna be
Posts: 4,803
Liked 1150 Times on 746 Posts
Likes Given: 2040

Default

Quote:
Originally Posted by Byron0022 View Post
He would have been sent packing if I was the boss. Lesson learned, maybe??
I doubt it , I know the guy and he will probably shoot the rest of them and hope he doesnt have a oops
__________________
Criminals Prefer Unarmerd Victims....


And Dictators Prefer Unarmed Citizens
purehavoc is offline  
 
Reply With Quote
Old 10-23-2013, 04:50 PM   #29
Feedback Score: 0 reviews
 
longunner's Avatar
 
Join Date: Jun 2012
Posts: 1,174
Liked 188 Times on 149 Posts
Likes Given: 108

Default

Scary. If I was him I at least would have checked the case he ejected to see if there was a bullet still seated.
__________________
Marlin Model 60
Mossberg Maverick 88-12 GA
Mosin Nagant 91/30
Stag Model 2
Savage Model 11
Saiga 7.62x39
Mossberg MVP Varmint
Chinese T53 Mosin Nagant X2
53 Springfield M1 Garand
longunner is offline  
 
Reply With Quote
Old 10-23-2013, 08:08 PM   #30
Feedback Score: 0 reviews
 
Join Date: Sep 2012
Location: The Great North Woods
Posts: 2,565
Liked 2055 Times on 1074 Posts
Likes Given: 392

Default

is it just me or does he pull his charging handle back too many times?

either way, when I see a nervous acting dude like this I stay the hell away, or in the case of RSO duty, ask him to settle the f*&k down
chloeshooter is offline  
 
Reply With Quote
Reply

Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Firearms Forum Replies Last Post
TANNERITE explosion MachineHead General Rifle Discussion 2 01-03-2013 03:30 PM
Tiny errors, HUGE CONSEQUENCES bkt Legal and Activism 14 05-29-2011 09:19 PM
Common Post-Shooting Errors SecPro The Club House 11 10-16-2010 08:39 PM



Newest Threads