M1A feeding problems - M14 Forum

M14 Forum

M1A feeding problems

This is a discussion on M1A feeding problems within the The M14 forums, part of the M14 M1A Forum category; My M1A is having problems with feeding by short stroking. I checked the gas plug it feels tight so I removed the op spring and ...

Go Back   M14 Forum > M14 M1A Forum > The M14

LinkBack Moderator Tools Display Modes

Old April 24th, 2011, 02:08 PM   #1
Join Date: Apr 2011
Location: Indiana
Posts: 4
M1A feeding problems

My M1A is having problems with feeding by short stroking. I checked the gas plug it feels tight so I removed the op spring and ran the bolt back and forth to look for any excess friction. I found a lot so much that the bolt will not slide freely on its own. The bottom of the bolt appears to be getting stuck on the hammer and the top of the hammer is showing sings of wear. Is this normal and if it is what’s causing my problem how should I fix it. I think adding heavy grease to the area might help but I would like to think that my rifle would work without it.

shooter78 is offline  
Remove Ads
Old April 24th, 2011, 02:21 PM   #2
Automatic Rifleman
Join Date: May 2009
Location: Washington
Posts: 131
The bolt needs to contact the hammer to reset the trigger. That being said maybe u can use a polishing stone to smooth it out, thats what my uncle did to my AR bcg cause it rides over the brass casings and was getting fouled up. Just throwing it out there, dunno if it would mess with the bolt integrity or not. Btw I'm having the same problem, but it seems to mot happen when I use heavier ammo 168gr etc.

SubSonicSOPMOD is offline  
Old April 24th, 2011, 02:43 PM   #3
Fire Team Leader
Join Date: Sep 2010
Location: Texas
Posts: 219
Grease it

I hate to assume you have not greased your rifle, but it sounds like you have not. Go to the Reference section here and look for the post by Tonyben on lubricating the M14.

Redraider is offline  
Old April 24th, 2011, 03:43 PM   #4
Join Date: Apr 2011
Location: Indiana
Posts: 4
I know that the bolt resets the hammer but should it be making contact when the hammer is already down? I been greasing the bolt roller, rails, and bolt area but not on the hammer.

shooter78 is offline  
Old April 24th, 2011, 03:55 PM   #5
Old Salt
Join Date: Feb 2004
Location: Colorado
Posts: 1,299
Yes, the underside of the bolt will slide in the grooved section at the front corner of the hammer; it pushes the hammer down that far to ensure that the disconnector captures the hooks. I lightly grease that bolt contact point on the hammer. You'll need to remove the trigger assembly to get a true idea of how much the bolt & op rod are binding, if at all.

liftrat22 is offline  
Old April 24th, 2011, 03:58 PM   #6
Master Gunner
Join Date: Apr 2009
Location: USA
Posts: 974
The bolt should contact and depress the hammer some when the hammer is held by the disconnector. When fired the trigger is holds the hammer after the bolt pushes it down. When the trigger is released the hammer takes a slightly higher position and is caught by the disconnector. The disconnector will hold the hammer slightly higher than the depressed trigger. The bolt has to push the hammer far enough for trigger to catch it when firing, therefore the disconnector must hold the hammer slightly higher because the depressed trigger hook is lower than the free disconnector. If the bolt didn't contact and push the hammer when it is being held by the disconnector, the depressed trigger would never be able to catch the hammer while firing. You can hold the trigger back and pull the op rod back to cock the hammer. Keep hold on the trigger, do not release it. Then see how much the bolt contacts the hammer. It should still contact it and depress it but not as much as when the trigger is not held and the hammer is held by the disconnector. Also check for free movement with the trigger housing removed.

John Coleman is offline  
Old April 24th, 2011, 05:21 PM   #7
Professional Slacker
ripsaw's Avatar
Join Date: Dec 2009
Location: Mississippi
Posts: 2,286
Does your M1A have a Springfield synthetic stock on it ? There have been a few problems as of late, with stock fitment issues. Trigger group issues also. If the stock overall thickness is too shy, it might cause more drag. The TG should bottom out in the receiver at the splineway, and have very little gap at the top of the TG to receiver fit. If for some reason, yours is out of spec in this meeting area, the entire TG would ride higher in the receiver, and also cause more contact or drag. The other place to look, would be the curved roof of the receiver, or bolt raceway. See if the bolt is dragging on the top of the receiver excessively. See if the bolt saddle at the receiver safety bridge is cut too low or too high and letting the bolt ride lower or higher also. I have been seeing a lot of SAI's lately with 1.631 chambers and the least bit of fouling has been causing feed and eject problems. What kind of ammo are you shooting ?

ripsaw is offline  
Old April 24th, 2011, 07:17 PM   #8
Join Date: Apr 2011
Location: Indiana
Posts: 4
I thinking more and more it’s the ammo causing the short stroking.
I was using 42 gr of AA 2520 with match 168 gr Noslers. I know other people who use this load so I’m guessing its the brass. I used a partial resizing method that appeared to work find when testing.

shooter78 is offline  
Old April 24th, 2011, 08:04 PM   #9
Squad Leader
bad-andy's Avatar
Join Date: Mar 2009
Location: The Great State of Mississippi
Posts: 236
problem solved

Perhaps Rip has steered you in the right direction for answering / solving your own problem.

Your brass should be at least full length sized, whether you use a small base / x die is up to you.

bad-andy is offline  

  M14 Forum > M14 M1A Forum > The M14

Search tags for this page
airsofft m14 feeding issues
feed problem springfield m1a
m-14 feeding problems
m14 feeding problems
m1a bolt feeding problem new rifle
m1a carbine springfield failure to feed

m1a feeding problems

m1a not feeding
m1a problems
my m1a is having feeding issues
sprinfield m1a feeding issues
troubleshooting m1a bolt slide back
Click on a term to search for related topics.

Moderator Tools
Display Modes

Similar M14 Forum Discussions
Thread Thread Starter Forum Replies Last Post
AR feeding problems Whatsinaname181 M16 AR15 21 February 11th, 2012 02:18 PM
M1A Loaded Standard Problems. falfriend The M14 13 July 12th, 2008 05:51 AM
New M1A owner, 2 problems chuckM1A The M14 6 September 27th, 2007 08:44 PM
problems w my m1a learjet The M14 8 April 22nd, 2006 10:09 PM
Devine ID UAWMAN The M14 9 February 19th, 2006 11:23 PM

Top Gun Sites Top Sites List