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newfalguy101
June 22, 2007, 23:01
I have a new DPMS Lite-16 Ar-15.

While shooting last weekend I had two fail to feed experiences ( the cartridge chambers far enough for the hammer to fall but NOT contact the primer) ..........as I was tugging on the charging handle a guy walks over and tells me to drive the cartridge into the chamber with the forward assist, pop the take-down pin, open the action, manually cock the hammer, close the action, and fire the cartridge.

I ended up doing that twice.................then on the way home it occurs to me:

1) if the cartridge wont chamber with spring pressure, do I REALLY want to fire it??

2) That seems like an awful lot of work to clear a jam, way too much work in fact for a military design.

Soooooooo, what is the correct way to clear a fail to feed???

Can I use the "FAL pogo" ???

thanks

Survey Punk
June 24, 2007, 06:20
Bump the forward assist with the heel of your hand then try the charging handle. After it's clear clean and dry the chamber, bolt lugs and bolt lug engagement areas. Very lightly oil the lugs and try it again.
Too much oil gums things up and attracts gunk.
Need to wear some of the new off of it. Watch a war movie and work the action a thousand timed, or so, clean, re-lube, and try again.

JB

PowderDriver
June 24, 2007, 08:40
Exactly.

Try using a thin coat of Break-Free CLP on all the moving parts.

What kind of ammo are you shooting?

TheOtherChris
June 24, 2007, 11:47
Originally posted by newfalguy101
...if the cartridge wont chamber with spring pressure, do I REALLY want to fire it??



Excellent question!
The forward assist should only require thumb pressure. If that won't chamber the round, eject it and check the case.
Here is a thread (http://www.falfiles.com/forums/showthread.php?s=&threadid=205430) with a great argument for not forcefully smacking the forward assist to chamber a round in an AR.

I have seen the following cause this malfunction:
Reloading untrimmed cases;
Dry buffer spring and/or dirty buffer tube;
Dirty chamber;
Missalligned gas tube;
Dirty bolt.

Good luck,

newfalguy101
June 24, 2007, 13:43
Originally posted by PowderDriver
Exactly.

Try using a thin coat of Break-Free CLP on all the moving parts.

What kind of ammo are you shooting?

I was running, or rather trying to run commercial re-loads, brass cased, 55gr FMJ.

I am beginning to suspect its a combination of things as alluded to by TheOtherChris.

a dry gun, chamber getting dirty, and just a new gun break in


When running Wolf, I have had zero problems, well except group size :tongue:



When the upper gets back from DPMS ( ran out of windage adjustment, so goin back under warranty ) I will clean thoroughly, oil, and try again.


Thanks

shootist87122
June 24, 2007, 15:26
Originally posted by newfalguy101


I was running, or rather trying to run commercial re-laods, ...

Until proven otherwise, that's your problem. Use a chamber check gauge and compare to new US factory or NATO spec ammo.