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Help-Won't pick up and feed new round |
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colreed
Grunt Joined: Feb 15 2016 Location: Hockley, TX Status: Online Points: 450 |
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Posted: Mar 09 2016 at 11:31am |
My carbine fires and ejects OK, but will not strip and feed new round from mag. Bolt closes normally on empty chamber. It does this on multiple mags (at least 5 different ones). I checked the ejector, extractor, and main spring. All seems OK. Any suggestions would be much appreciated.
Thanks Colreed colreed1@hotmail.com
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New2brass
Moderator Group Dan Pinto, Photo Editor Joined: Nov 29 2015 Location: CT Status: Offline Points: 4627 |
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this is commonly caused by magazine spring being installed backwards. The spring should have the longest dimension facing the rear of the magazine.
Reed, I am sure you have checked what I am about to say, but put it here for future searches on failure to feed. Check that the nibs on the back of the magazine are not worn. Clean and inspect the magazine catch to ensure magazine is being fully inserted
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colreed
Grunt Joined: Feb 15 2016 Location: Hockley, TX Status: Online Points: 450 |
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Dan,
Will do and thanks. I think I'll change out the mag catch while I'm at it. May be worn just ever so slightly. Will take a couple weeks to report back. Unfortunately, the range is not in my immediate future. |
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wd4ngb
On Point Joined: Feb 17 2016 Location: Tennessee Status: Offline Points: 121 |
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Pick up a couple Snap Caps, and try feeding them from the mags with a flat tip screw driver to see what is the problem.
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colreed
Grunt Joined: Feb 15 2016 Location: Hockley, TX Status: Online Points: 450 |
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thanks for the suggestion. I'll add it to my list of things to do.
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Charles
Grunt Joined: Mar 21 2016 Location: Maryland Status: Offline Points: 587 |
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I found that some of my newer mags was the problem ejecting rounds. If you put a known good mag next to a known faulty mag and look very carefully, notice a difference of those ears where the bullet exits the mag, the faulty mag will have longer and misshaped ears with sharp edges. You will find you can't push rounds out easily with your thumb nail. The bullet case is catching on those sharp edegs. Remove the spring. With a half round metal file , very carefully file the ears to soften the sharp edge until you can easily push a round out. Reinstall the spring making sure the full rounded part of the spring is in the back under the primer. Be sure to clean the mag thoroughly when finished.
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Charles
Co B 1st Batl.115 Inf. Reg. 29th. Divi. 4.2 Heavy Mortar Co Retired Life member NRA |
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colreed
Grunt Joined: Feb 15 2016 Location: Hockley, TX Status: Online Points: 450 |
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Great tip, Charles.
I have often encountered mags that were more difficult to strip with thumbnail than others but never considered why. Will now tweek them as you suggest. Thanks. Reed
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"Rescuing one animal may not change the world, but for THAT animal, THEIR world is changed forever"
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BEBIII
On Point Joined: Feb 12 2017 Location: South East MA Status: Offline Points: 85 |
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Most of my feeding issues have been directly related to the magazine I'm using. G.I. mags seem to work best, but I've even had issues with some of them. The newly manufactured ones I've bought, in my opinion, aren't worth a damn.
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colreed
Grunt Joined: Feb 15 2016 Location: Hockley, TX Status: Online Points: 450 |
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I bought 50 NOS G.I. surplus mags from a fellow in Europe several years ago. Pristine and VERY SWEET. Thanks again for your inputs.
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"Rescuing one animal may not change the world, but for THAT animal, THEIR world is changed forever"
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RClark9595
On Point Joined: Oct 30 2017 Location: WVC Utah Status: Offline Points: 136 |
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Can anyone post pictures as to the correct orientation of the spring to the follower. Also, is it a good idea to lightly oil the inside if the mag for smoother follower operation?
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Ron
USAF 4535 CCTS F4 Combat Crew Training Vietnam era Vet. |
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Charles
Grunt Joined: Mar 21 2016 Location: Maryland Status: Offline Points: 587 |
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It is not a good idea to oil the inside of a mag. That will attract dust and dirt. Just wipe it clean.
As far as the mag spring is concerned, there are many demonstrations on the internet, in a search box, type M1 carbine magazine maintenance and repair. |
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Charles
Co B 1st Batl.115 Inf. Reg. 29th. Divi. 4.2 Heavy Mortar Co Retired Life member NRA |
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New2brass
Moderator Group Dan Pinto, Photo Editor Joined: Nov 29 2015 Location: CT Status: Offline Points: 4627 |
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bonnie
Recruit Joined: Aug 28 2016 Location: N.C. Status: Offline Points: 89 |
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This manual is worth saving for future reference. Go to page 97 of the manual and see figure 68 for correct spring orientation for a fifteen round magazine and figure 69 for a 30 round magazine. If you lightly oil the inside of a magazine wipe it out before assembly. I just pull a oily rag through once and call it done and do that only rarely. http://www.90thidpg.us/Reference/Manuals/TM9-1276_1947.pdf |
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RClark9595
On Point Joined: Oct 30 2017 Location: WVC Utah Status: Offline Points: 136 |
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Thank you bonnie and all who responded, my questions were answered, here is what I got from that really good manual, and I did download it.
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Ron
USAF 4535 CCTS F4 Combat Crew Training Vietnam era Vet. |
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RClark9595
On Point Joined: Oct 30 2017 Location: WVC Utah Status: Offline Points: 136 |
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I noticed on my 15 round GI magazines that the top spring coil is slightly narrower than the bottom spring coil, I assume this is to orient the spring correctly as to top and bottom, although I see no mention of this anywhere.
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Ron
USAF 4535 CCTS F4 Combat Crew Training Vietnam era Vet. |
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