Feed Issues, Rock-ola James River Armory - Page 3 - M14 Forum

M14 Forum


Feed Issues, Rock-ola James River Armory

This is a discussion on Feed Issues, Rock-ola James River Armory within the Modern M14 forums, part of the M14 M1A Forum category; Originally Posted by masspatriot here's what was removed I clean my gas system after every range trip. Just with the 2 drill bits, nothing more. ...


Go Back   M14 Forum > M14 M1A Forum > Modern M14

47Thanks
Reply
 
LinkBack Moderator Tools Display Modes

Old April 21st, 2017, 05:04 PM   #31
Lifer
 
Capona's Avatar
 
Join Date: Jul 2013
Location: Illinois
Posts: 3,319
Quote:
Originally Posted by masspatriot View Post
here's what was removed
I clean my gas system after every range trip. Just with the 2 drill bits, nothing more. It takes me maybe 3 minutes to do.
Never a problem.

Capona is online now  
Remove Ads
Old April 21st, 2017, 05:18 PM   #32
Lifer
 
Wasted ammo's Avatar
 
Join Date: Dec 2016
Location: GA
Posts: 3,671
Refer back to post # 2 and read it and comprehend it. This is a battle rifle. I believe Art said dismantle clean and grease. Like I said in post 3 nothing else to say. I hope this fixes your problem.

Thanks from nicholst55
Wasted ammo is online now  
Old April 21st, 2017, 05:19 PM   #33
Super Moderator
 
Join Date: Feb 2013
Location: N/A
Posts: 4,642

Awards Showcase

Quote:
Originally Posted by masspatriot View Post
7.62 mm NATO, BALL, 150 grain FMJ by Isrsaeli Military

7.62 mm x 51mm M80 147 grain FMJ by ZQI ammunition

Bolt is not stripping the next round from the magazine.
Rounds are being ejected at about 3 o'clock



Thanks
IMI is bad ammo and ZQI is no better. Pick up some XM80 That is lake city NATO Ball ammo.

TheShooter is offline  
 
Old April 21st, 2017, 05:33 PM   #34
Lifer
 
Wasted ammo's Avatar
 
Join Date: Dec 2016
Location: GA
Posts: 3,671
Quote:
Originally Posted by TheShooter View Post
IMI is bad ammo and ZQI is no better. Pick up some XM80 That is lake city NATO Ball ammo.
Thanks for that I was just fixing to order some. I'll stick with the Hirt I have been shooting.

Wasted ammo is online now  
Old April 21st, 2017, 05:36 PM   #35
Lifer
 
POLACK's Avatar
 
Join Date: Aug 2016
Location: south east Florida
Posts: 2,819
mass make sure the new extractor has a nice dimple for the extractor pin to set in and it does not hang below the bolt body

POLACK is online now  
Old April 22nd, 2017, 05:23 AM   #36
Super Moderator
 
Join Date: Feb 2013
Location: N/A
Posts: 4,642

Awards Showcase

don't change more then 1 thing at once or you'll never fix this problem. first clean the whole gas system then test the rifle for function. tilt test.

TheShooter is offline  
Old April 22nd, 2017, 06:05 AM   #37
Lifer
 
tokiwartooth's Avatar
 
Join Date: May 2011
Location: Northport, NY
Posts: 2,613
Quote:
Originally Posted by KurtC View Post
I suspect the action simply isn't getting enough power.

1. The gas cylinder isn't lined up correctly.
2. The spindle valve is dirty or not fully open.
3. There is a grooved piston in it.
4. The gas plug is loose.
5. The ammo was not designed for an M14.

As stated above. Insert a loaded magazine, pull the oprod handle all the way to the rear and release it. Repeat. If each round chambers and extracts, then it is one of the issues I mentioned.
I assume you mean not going into battery? Could be a short stroke and not enough inertia to load a new round.

1. Do a tilt test. Make sure there is no op rod binding. Could be on the barrel (if it's med or heavy weight), out of spec channel, etc.

2. Get a drill bit and check the gas cylinder/barrel hole alignment. Someone remind me the size of bit to use. You may have to shim it.

3. Check for burrs on the receiver bridge.

5. Check to make sure the bolt isn't hanging up on burrs on the underside of the receiver heel. I had this happen with an LRB that was roughly machined,

tokiwartooth is offline  
Old April 22nd, 2017, 06:35 AM   #38
Snappin In
 
Join Date: Feb 2017
Location: North Chelmsford, MA
Posts: 29
Tilt test works fine. Waiting on the part I lost in disassembly. What is a good online source of LC Ammo? Real PIA because I live in the only state where ammo can't be shipped, knives too.
Last year our great AG said that the Mass Compliant AR's purchased in the last 18 years are all illegal.
Moving south next year and retiring. MASS will not get my future 401 tax money.

Thanks from RDS
masspatriot is offline  
Old April 22nd, 2017, 06:46 AM   #39
Dodgin' The Reaper
 
Join Date: Oct 2008
Location: NJ
Posts: 5,061

Awards Showcase

This is the best stuff around for the M1A. It was specifically designed for it. Clean burning and accurate, it is loaded with 4064. You can often find it for $150-170 per 200 rd case.

https://estore.thecmp.org/Catalog/Item/4C308FM1A-200

Current Lake City M80 is made for the M60 and M240 machine guns. It works in the M14 platform, but isn't terribly accurate or clean burning. It contains a crushed type of ball powder.

Thanks from WaM14gunner
KurtC is offline  
Old April 22nd, 2017, 01:24 PM   #40
Lifer
 
Buelligan's Avatar
 
Join Date: Dec 2008
Location: Georgia
Posts: 4,843
Quote:
Originally Posted by KurtC View Post
Current Lake City M80 is made for the M60 and M240 machine guns. It works in the M14 platform, but isn't terribly accurate or clean burning. It contains a crushed type of ball powder.
How current? I got some LC 14 I was going to try. I was hoping it was going to be better than the RA 65 I tried a few weeks ago. That stuff was terrible.

Buelligan is offline  
Old April 22nd, 2017, 01:31 PM   #41
Rifleman
 
Huey Guns's Avatar
 
Join Date: Jul 2016
Location: Arkansas
Posts: 68
Not enough gas, short stroking. does it leave a crease on side of the mis-fed cartridge?

Huey Guns is online now  
Old April 22nd, 2017, 01:45 PM   #42
Professional Slacker
 
ripsaw's Avatar
 
Join Date: Dec 2009
Location: Mississippi
Posts: 2,287
Hi Mass Patriot,
When you get your bolt parts in and get it reassembled, clean the liberal, or extra grease and oil out of and off the rifle. No amount of lube is going to fix this problem, or help it. If it won't run dry, something is wrong, then you can lube, sparingly after it is running right.

Number 1, you need to know what your chamber headspace is, especially if you are going to be shooting "foreign" milsurp ammo. If your chamber headspace is 1.632 or below with that chromed lined barrel, or the chamber was roughly reamed before chroming, and shows visible lines in it or the bottleneck area especially, they have a tendency to hang the brass after firing, as it swells in an almost molten state, into the voids left by the rough lines in the chamber. This very miniscule amount of hanging can and does rob enough gas pressure to cause short cycling. I've seen it a hundred times with foreign milsurp and tighter chambers.

I'm pretty sure from what you described, that unless the gas plug was loose or gas port was restricted, it was the carbon fouling and build-up that was causing the short stroke problem.

But, the partially stove piped round is a bit alarming.....and that usually is indicative of a hanging round in the chamber in the M14 design. Also make sure your mags are latched well and completely, but being a match shooter, I'm sure you know that already.

It should run fine with gas system cleaned, but if it doesn't, look to that chamber for smoothness and get some gauges to find your headspace. Don't shoot foreign milsurp anymore until you know what the chamber headspace is for sure.

The only other thing that hasn't been covered yet or maybe I missed it, is something internally on the receiver, restricting the bolt in it's travel, which can also rob the much needed gas to operate properly. Let us know how she runs....and target pics too please.

Thanks from TheShooter
ripsaw is offline  
Old April 22nd, 2017, 01:47 PM   #43
Dodgin' The Reaper
 
Join Date: Oct 2008
Location: NJ
Posts: 5,061

Awards Showcase

Quote:
Originally Posted by Buelligan View Post
How current? I got some LC 14 I was going to try. I was hoping it was going to be better than the RA 65 I tried a few weeks ago. That stuff was terrible.
I don't believe an M14 has been part of the NATO test protocol since about 1970.

That doesn't mean that it won't work in an M14, it's just that M80 ammunition is no longer being manufactured with the M14 as it's primary recipient. I doubt that the terms "clean" and "accurate" are part of the requirement.

If you find US made M80 that comes in bandoleers of 5 round stripper clips, you know for sure it was manufactured for the M14. If it comes loose in cans or repackaged in white boxes, it was made for the M60 and M240. Fodder from other countries was designed around their specific rifles, such as the G1 (FAL) and G3 (HK).

M118LR and Mk 316 Mod 0 are specifically manufactured for the M14 DMR, as well as other quality rifles. They are cleaner burning, more accurate and more expensive.

KurtC is offline  
Old April 22nd, 2017, 03:30 PM   #44
Lifer
 
POLACK's Avatar
 
Join Date: Aug 2016
Location: south east Florida
Posts: 2,819
find yourself a good case gauge and check all ammo to be safe.plus,if you have ammo issues,a chronograph will tell you if the ammo is up to speed or not

POLACK is online now  
Old May 19th, 2017, 08:55 AM   #45
Snappin In
 
Join Date: Feb 2017
Location: North Chelmsford, MA
Posts: 29
Finally able to test cleaning and new parts, still short cycling

Fired 60 rounds, three different types of ammo and four magazines. New extractor, ejector and spring, thourough cleaning of entire gas system. Can't cycle 4 rounds in a row.
I called Jame River Armory, very friendly. We went over a lot of items. Diagnosed as either gas piston or gas cylinder. They suggested Sadlak NM with coating. On order. Will update after installing and test firing. It is very accurate, I must say.

masspatriot is offline  
Reply

  M14 Forum > M14 M1A Forum > Modern M14

rockola feed issue

Moderator Tools
Display Modes


Similar M14 Forum Discussions
Thread Thread Starter Forum Replies Last Post
James River Armory move to NC Earie Steel and Wood 27 June 29th, 2015 05:51 AM
RCMP answers to questions about their High River breakins. Sweets Gun Rights 8 February 22nd, 2014 06:29 PM
James River M1A Rifles grndpndr Modern M14 8 January 24th, 2010 10:34 AM
James River Armory Forged Receivers Hawk The M14 38 February 20th, 2008 10:56 AM
A Question About Rock Island Armory Carbines Hannibal Steel and Wood 3 December 2nd, 2004 04:35 AM



Top Gun Sites Top Sites List