Calguns.net  

Home My iTrader Join the NRA Donate to CGSSA Sponsors CGN Google Search
CA Semiauto Ban(AW)ID Flowchart CA Handgun Ban ID Flowchart CA Shotgun Ban ID Flowchart
Go Back   Calguns.net > FIREARMS DISCUSSIONS > Centerfire Rifles - Semiautomatic or Gas Operated
Register FAQ Members List Calendar Mark Forums Read

Centerfire Rifles - Semiautomatic or Gas Operated Centerfire rifles, carbines and other gas operated rifles.

Reply
 
Thread Tools Display Modes
  #1  
Old 06-15-2010, 5:13 PM
CoyoteHunter555's Avatar
CoyoteHunter555 CoyoteHunter555 is offline
Senior Member
 
Join Date: Oct 2009
Location: Orange County, CA
Posts: 1,288
iTrader: 29 / 100%
Default AR 15 Failure to Feed??

I shot my ar 15 (stag model 6L)for the first time using 4 different types of ammo. 69 and 77 grain Black Hills HPs, 62 Grain American Tactical FMJs, and Federal 55 grain FMJs. All cycled perfectly except for the 62 grain American Tactical FMJs. I released the bolt for the first round and it loaded fine. After firing the first shot I squeezed the trigger and got a 'click'. I opened the chamber and the next round failed to feed and didn't even change position in the magazine. This happened probably around once in every three shots. I use Magpul PMAGs by the way. My guess is it has something to do with the recoil not throwing the bolt back far enough every time to pick up the next round. Here are my velocities though at 4 yards then 26 yards averaged over 5 shots each. The point is the velocities are up there so why wouldn't it work then?? I can't figure it out

BH 69- 2845, 2798
BH 77- 2824, 2766
*AT 62- 3191, 3143
FED 55- 3202, 3165
__________________
-Jared
Reply With Quote
  #2  
Old 06-15-2010, 5:25 PM
BSlacker BSlacker is online now
Senior Member
 
Join Date: Dec 2003
Location: SoCal
Posts: 922
iTrader: 6 / 100%
Default

What is your buffer and spring?
Reply With Quote
  #3  
Old 06-15-2010, 5:26 PM
CoyoteHunter555's Avatar
CoyoteHunter555 CoyoteHunter555 is offline
Senior Member
 
Join Date: Oct 2009
Location: Orange County, CA
Posts: 1,288
iTrader: 29 / 100%
Default

Stock Stag A2 set up
__________________
-Jared
Reply With Quote
  #4  
Old 06-15-2010, 6:32 PM
97F1504RAD's Avatar
97F1504RAD 97F1504RAD is offline
Veteran Member
 
Join Date: Dec 2008
Location: Nor Cal-East Bay Area
Posts: 4,769
iTrader: 71 / 100%
Default

Do you have that bolt good and lubed? Also does it cycle if you manually pull back the charging handle each time?
__________________
Shop @ Amazon via link to Donate to CGF:
Reply With Quote
  #5  
Old 06-15-2010, 6:34 PM
CoyoteHunter555's Avatar
CoyoteHunter555 CoyoteHunter555 is offline
Senior Member
 
Join Date: Oct 2009
Location: Orange County, CA
Posts: 1,288
iTrader: 29 / 100%
Default

Quote:
Originally Posted by 97F1504RAD View Post
Do you have that bolt good and lubed? Also does it cycle if you manually pull back the charging handle each time?
Yea I think so. It cycled well for all the other rounds. Yea it loads a round every time I do it manually
__________________
-Jared
Reply With Quote
  #6  
Old 06-15-2010, 7:30 PM
quig's Avatar
quig quig is offline
Senior Member
 
Join Date: Dec 2009
Posts: 774
iTrader: 85 / 100%
Default AR 15 Failure to Feed??

Upgrade the extractor. I just went through this. Some ammo may work better than others, as do the mags. You can either not use that ammo, or get it working with all types of ammo; I chose the latter.
Reply With Quote
  #7  
Old 06-15-2010, 7:37 PM
socal-shooter's Avatar
socal-shooter socal-shooter is offline
Senior Member
 
Join Date: May 2010
Posts: 1,520
iTrader: 12 / 100%
Default

im having the same intermittent problem..

my rifle is still new and probably just needs to be broken in more..


i imagine if i lubed the bolt better it wouldve happened less..

i'll just have to wait and see til my next trip to the range
Reply With Quote
  #8  
Old 06-15-2010, 10:40 PM
Norm222's Avatar
Norm222 Norm222 is offline
Member
 
Join Date: Feb 2010
Location: San Diego
Posts: 180
iTrader: 15 / 100%
Default

The same thing happened to me on my new build. Just keep it lubed and keep shooting. Mine cleared up on my second trip to the range ~200 rounds.
Reply With Quote
  #9  
Old 06-15-2010, 11:41 PM
Dhena81's Avatar
Dhena81 Dhena81 is offline
Veteran Member
 
Join Date: May 2010
Location: San Diego
Posts: 4,487
iTrader: 33 / 100%
Default

Is the 62 grain American Tactical FMJs 5.56 or .223 whats your chamber 5.56 or .223 keep that bolt lubed up really good.
Reply With Quote
  #10  
Old 06-15-2010, 11:53 PM
Linus's Avatar
Linus Linus is offline
Senior Member
 
Join Date: Dec 2007
Location: Davis
Posts: 1,202
iTrader: 26 / 100%
Default

Quote:
Originally Posted by CoyoteHunter555 View Post
Yea I think so. It cycled well for all the other rounds.
Don't upgrade the extractor.

Doesn't sound like you lubed it enough, run it wet next time and try some different mags. I've had this happen with new uppers when I didn't lube the BCG or used crappy mags.
__________________
NRA Member

Reply With Quote
  #11  
Old 06-16-2010, 9:40 AM
CoyoteHunter555's Avatar
CoyoteHunter555 CoyoteHunter555 is offline
Senior Member
 
Join Date: Oct 2009
Location: Orange County, CA
Posts: 1,288
iTrader: 29 / 100%
Default

Yea thinking about it I need to run it more lubed more than likely. I appreciate the help fellas and will post an update
__________________
-Jared
Reply With Quote
  #12  
Old 06-26-2010, 8:55 AM
MarCay08's Avatar
MarCay08 MarCay08 is offline
Member
 
Join Date: Jan 2010
Location: Vallejo, CA
Posts: 482
iTrader: 22 / 100%
Default

any update on the issue?

I ran into some cycling issues on my first build. bought new extractor, extractor spring upgrade, bolt, accuwedge, lubed it more than it needed. I was dang near ready to give up and almost brought the thing to a gunsmith. but for the money they were gonna charge me I decided to buy the tools needed to correct the issue and for future builds. Come to find out it was the following,

1.---Gas port was out of spec-------(returned it to the seller and he gave me a new barrel. 2 weeks later he calls me up to tell me all the barrels sent to him had out of spec gas ports)

2.---a slight misalignment of the gas block from the gas port

I read somewhere that misalignment can cause cycling issues as the barrel heats up.

Hope my experience helps out and others. I have built 1 more for me and built 4 more for friends and never again did I have issues...

Last edited by MarCay08; 06-26-2010 at 8:59 AM..
Reply With Quote
  #13  
Old 06-26-2010, 9:09 AM
CoyoteHunter555's Avatar
CoyoteHunter555 CoyoteHunter555 is offline
Senior Member
 
Join Date: Oct 2009
Location: Orange County, CA
Posts: 1,288
iTrader: 29 / 100%
Default

Quote:
Originally Posted by MarCay08 View Post
any update on the issue?

I ran into some cycling issues on my first build. bought new extractor, extractor spring upgrade, bolt, accuwedge, lubed it more than it needed. I was dang near ready to give up and almost brought the thing to a gunsmith. but for the money they were gonna charge me I decided to buy the tools needed to correct the issue and for future builds. Come to find out it was the following,

1.---Gas port was out of spec-------(returned it to the seller and he gave me a new barrel. 2 weeks later he calls me up to tell me all the barrels sent to him had out of spec gas ports)

2.---a slight misalignment of the gas block from the gas port

I read somewhere that misalignment can cause cycling issues as the barrel heats up.

Hope my experience helps out and others. I have built 1 more for me and built 4 more for friends and never again did I have issues...


Thanks a lot for the info and reply. Never thought of that. Update at this point is I sold the ammo that wouldn't cycle well and have kept the 3 different types that my AR likes. I am shooting it again next Saturday and will see how it performs. If something else goes wrong I will look into it with the help you posted. Thanks again
__________________
-Jared
Reply With Quote
  #14  
Old 06-26-2010, 9:10 AM
ar15barrels's Avatar
ar15barrels ar15barrels is offline
I need a LIFE!!
 
Join Date: Jan 2006
Location: Van Nuys
Posts: 37,124
iTrader: 86 / 100%
Default

Quote:
Originally Posted by CoyoteHunter555 View Post
I shot my ar 15 (stag model 6L)for the first time using 4 different types of ammo. 69 and 77 grain Black Hills HPs, 62 Grain American Tactical FMJs, and Federal 55 grain FMJs. All cycled perfectly except for the 62 grain American Tactical FMJs. I released the bolt for the first round and it loaded fine. After firing the first shot I squeezed the trigger and got a 'click'. I opened the chamber and the next round failed to feed and didn't even change position in the magazine. This happened probably around once in every three shots. I use Magpul PMAGs by the way. My guess is it has something to do with the recoil not throwing the bolt back far enough every time to pick up the next round. Here are my velocities though at 4 yards then 26 yards averaged over 5 shots each. The point is the velocities are up there so why wouldn't it work then?? I can't figure it out

BH 69- 2845, 2798
BH 77- 2824, 2766
*AT 62- 3191, 3143
FED 55- 3202, 3165
How consistent were the velocities of the AT ammo?
Was it the slow shots that don't cycle the gun?
Perhaps that company uses a slightly faster burning powder and you are not getting proper gas port pressure to run the gun on the slower shots...
__________________
Randall Rausch

AR work: www.ar15barrels.com
Bolt actions: www.700barrels.com
Foreign Semi Autos: www.akbarrels.com
Glock, XD and M&P pistols, Benelli and Remington shotguns: barrel, sight, trigger and receiver work.
Most work performed while-you-wait, evening and weekend appointments available.
Founding member of the CAPRC
Reply With Quote
  #15  
Old 06-26-2010, 9:14 AM
CoyoteHunter555's Avatar
CoyoteHunter555 CoyoteHunter555 is offline
Senior Member
 
Join Date: Oct 2009
Location: Orange County, CA
Posts: 1,288
iTrader: 29 / 100%
Default

Quote:
Originally Posted by ar15barrels View Post
How consistent were the velocities of the AT ammo?
Was it the slow shots that don't cycle the gun?
Perhaps that company uses a slightly faster burning powder and you are not getting proper gas port pressure to run the gun on the slower shots...

Makes sense, I appreciate the reply and help. Here are the velocities at 14 ft then 27 yards:

-3193, 3193, 3180, 3205, 3183 /Avg.- 3191

-3120, 3185, 3123 /Avg.- 3143

Deviations seem pretty decent to me
__________________
-Jared
Reply With Quote
  #16  
Old 06-26-2010, 9:33 AM
Lead-Thrower's Avatar
Lead-Thrower Lead-Thrower is offline
Senior Member
 
Join Date: Oct 2009
Location: Sacramento
Posts: 780
iTrader: 0 / 0%
Default

I avoid ATI ammo like the plague. I have had jams, blown primers, case head separation, etc. with that stuff. I have found that my Stag 6 likes heavier bullets (68, 77 gr.) anyways...
Reply With Quote
  #17  
Old 06-26-2010, 9:35 AM
CoyoteHunter555's Avatar
CoyoteHunter555 CoyoteHunter555 is offline
Senior Member
 
Join Date: Oct 2009
Location: Orange County, CA
Posts: 1,288
iTrader: 29 / 100%
Default

Quote:
Originally Posted by Lead-Thrower View Post
I avoid ATI ammo like the plague. I have had jams, blown primers, case head separation, etc. with that stuff. I have found that my Stag 6 likes heavier bullets (68, 77 gr.) anyways...
That's what I've heard so count me in. I shoot black hills 69 and 77 grain bullets and it loves them. I also use federal 55 grain fmjs from walmart as my plinking ammo that don't do half bad
__________________
-Jared
Reply With Quote
  #18  
Old 06-26-2010, 1:27 PM
Josh3239's Avatar
Josh3239 Josh3239 is offline
Calguns Addict
 
Join Date: Dec 2006
Location: Ventura County
Posts: 8,769
iTrader: 53 / 100%
Default

Yep, I have heard nothing but bad things about ATI ammo. I wouldn't touch it.
__________________
Proud NRA Life Member As Of 2016


"The American people will never knowingly adopt socialism, but under the name of liberalism they will adopt every fragment of the socialist program until one day America will be a socialist nation without ever knowing how it happened." Norman Thomas, American socialist
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



All times are GMT -8. The time now is 8:49 AM.




Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Proudly hosted by GeoVario the Premier 2A host.
Calguns.net, the 'Calguns' name and all associated variants and logos are ® Trademark and © Copyright 2002-2016, Calguns.net an Incorporated Company All Rights Reserved.