JMArguien Posted July 30, 2013 Report Share Posted July 30, 2013 I'm sure that this a redundant thread, but it seemed faster than sifting through 38 pages to find my exact problem. So without further ado, here I go. I have had the rifle for approx. two years and it has been a continuous evolution as I have upgraded parts. I only shoot factory new ammo, typically Federal/American Eagle. The rifle has approx. 1000rds through it. When loaded with a full mag the weapon double feeds on nearly every shot. When I have only a single round in the mag the bolt DOES successfully lock to the rear but the casing is left sitting on top of the empty magazine (In one instance the casing had turned 180 degrees and was resting backwards on the empty mag). So I feel it is safe to rule out the extractor. I have recently put a Seekins adjustable gas block on the rifle, but the rifle worked fine for approximately 100rds before the problem presented itself. The rifle has a JP enterprise Silent Captured Spring buffer system, so I don't imagine that buffer weight is my issue. The ejected rounds (on the rare occasion that they do eject!) have a dent midway down the casing, two lug scratches on the neck and land at approximately 3:00 o'clock. I believe that my problem may be connected to an ejector malfunction. The spring is stout but when I place a live round or a spent casing under the extractor on the bolt face and apply tension, the round does not readily fly off the bolt. It seems to bind and the ejector is not flush with the bolt face but rather recessed a bit. Sorry for the length of the post. Any advice would be very welcomed at this point. Thanks in advance. Quote Link to comment Share on other sites More sharing options...
planeflyer21 Posted July 30, 2013 Report Share Posted July 30, 2013 The rifle has a JP enterprise Silent Captured Spring buffer system, so I don't imagine that buffer weight is my issue. That's what jumped out at me right there. Others will be along shortly but you will probably get the recommendation to switch to a Spike's Heavy Buffer. Quote Link to comment Share on other sites More sharing options...
JMArguien Posted July 30, 2013 Author Report Share Posted July 30, 2013 Well, perhaps someone on this forum has had a similare experience with the JP SCS. Quote Link to comment Share on other sites More sharing options...
unforgiven Posted July 30, 2013 Report Share Posted July 30, 2013 Welcome from Indiana brother JMArguien,lots of infor to be had.I take it by the stripes you served.THANK YOU for you'r service. Quote Link to comment Share on other sites More sharing options...
survivalshop Posted July 30, 2013 Report Share Posted July 30, 2013 (edited) Did you ever have a std. buffer spring in the rifle & if so , did it have the same problems ? Edited July 30, 2013 by survivalshop Quote Link to comment Share on other sites More sharing options...
JMArguien Posted July 30, 2013 Author Report Share Posted July 30, 2013 It did have a standard buffer system originally and I have had issues like this off and on, but I thought that I had fixed them. I have had the JP SCS for sometime now and up until recently have had no problem. I could be wrong but I don't think the JP SCS is the issue. Those guys at JP Ent are pretty spot on with their gear. Quote Link to comment Share on other sites More sharing options...
JMArguien Posted July 30, 2013 Author Report Share Posted July 30, 2013 Welcome from Indiana brother JMArguien,lots of infor to be had.I take it by the stripes you served.THANK YOU for you'r service. Thank you Sir. It is a pleasure to be among you gentlemen. Quote Link to comment Share on other sites More sharing options...
washguy Posted July 31, 2013 Report Share Posted July 31, 2013 Hi Jm thank you sir for your service! If i make a change and have a problem i always go back to basics again. So you changed out the gas sysem in effect.....first the adj gas block and then the buffer system... you have a cycling problem for sure....backtrack......but you also said you shot american eagle ammo? that stuff is underpowered in my opinon......get you something else for ammo just for kicks :) Wash Quote Link to comment Share on other sites More sharing options...
Zebra644 Posted July 31, 2013 Report Share Posted July 31, 2013 (edited) What kind of mags are you running the metal DPMS type or Magpul? Is it only on one mag or all of your mags? If the mag spring is causing the follower to tilt at an odd angle that could cause the brass to get bent up and really drag them on the feed ramps. It could also casue the ejector to not bite onto the case correctly combined with a gas or buffer / spring issue give you the issue you are having. The Magpull mags are the only mag I have seen on the SR-25 / DPMS pattern that solve 100% of the issues FYI. Edited July 31, 2013 by Zebra644 Quote Link to comment Share on other sites More sharing options...
Robocop1051 Posted July 31, 2013 Report Share Posted July 31, 2013 I say take the bolt apart. Sounds to me like you crushed/broke your extraction spring. Pull the bolt apart and go over the small parts. This may be a less than $1 fix. Ps. While JP parts are really nice, they were designed to be used in THEIR rifles, in conjunction with THEIR parts. Even JP acknowledges their competition parts aren't 100% reliable. Hence the separation between LMOS and full mass rifles. Quote Link to comment Share on other sites More sharing options...
washguy Posted July 31, 2013 Report Share Posted July 31, 2013 What Robo said! ^^^^^^ Wash Quote Link to comment Share on other sites More sharing options...
Rsquared Posted July 31, 2013 Report Share Posted July 31, 2013 Welcome aboard JM. And Robo beat me too it. I'd go with tearing down the bolt. Quote Link to comment Share on other sites More sharing options...
survivalshop Posted July 31, 2013 Report Share Posted July 31, 2013 (edited) What kind of lubricant are you using & how much & how often ? What stock are you running ? Check you chamber if its a DPMS barrel & as said , check & use different manufactures Mags. Edited July 31, 2013 by survivalshop Quote Link to comment Share on other sites More sharing options...
JMArguien Posted August 1, 2013 Author Report Share Posted August 1, 2013 Apologies all around for my delay in responding. After reading through the advice I pulled apart my bolt and found that my ejector spring had...snapped? It sheared near where the ejector contacts the spring. A couple bucks later and I have a new one coming. I am hoping that this accounts for the loss of ejection. I also noticed that there was brass shaving in the ejector pin hole; is this normal? Quote Link to comment Share on other sites More sharing options...
JMArguien Posted August 1, 2013 Author Report Share Posted August 1, 2013 What kind of mags are you running the metal DPMS type or Magpul? Is it only on one mag or all of your mags? If the mag spring is causing the follower to tilt at an odd angle that could cause the brass to get bent up and really drag them on the feed ramps. It could also casue the ejector to not bite onto the case correctly combined with a gas or buffer / spring issue give you the issue you are having. The Magpull mags are the only mag I have seen on the SR-25 / DPMS pattern that solve 100% of the issues FYI. I am only using Magpul mags. Quote Link to comment Share on other sites More sharing options...
JMArguien Posted August 1, 2013 Author Report Share Posted August 1, 2013 What kind of lubricant are you using & how much & how often ? What stock are you running ? Check you chamber if its a DPMS barrel & as said , check & use different manufactures Mags. I am using BreakFree CLP and I run the weapon pretty wet. I have a Troy battle axe stock, I will be visiting my gunsmith when the new spring comes and I will check the chamber. Quote Link to comment Share on other sites More sharing options...
Robocop1051 Posted August 1, 2013 Report Share Posted August 1, 2013 Apologies all around for my delay in responding. After reading through the advice I pulled apart my bolt and found that my ejector spring had...snapped? It sheared near where the ejector contacts the spring. A couple bucks later and I have a new one coming. I am hoping that this accounts for the loss of ejection. I also noticed that there was brass shaving in the ejector pin hole; is this normal? In the humblest way possible, I'd like to point out to all of you that I was right!! Lol Kidding aside, I'm glad you checked this before spending lots of money on parts and labor. Check the tip of your firing pin for burrs or edges. Sometimes a sharp pin will hit a primer like a cookie cutter. It pulls little pieces of brass into the bolt. Those little pieces can jam up the extractor spring and start breaking stuff. This is exactly what happened to my 7.62x39 build. Quote Link to comment Share on other sites More sharing options...
Zebra644 Posted August 1, 2013 Report Share Posted August 1, 2013 I don't mind being wrong ( :ifly: ) .when its a simple fix glad you found out what the problem is. Quote Link to comment Share on other sites More sharing options...
JMArguien Posted August 1, 2013 Author Report Share Posted August 1, 2013 I ordered a bolt repair kit. It wasn't very expensive and I figured what the hell, I like extra parts. When it arrives I will replace the firing pin as well. I noticed that my firing pin is being crushed by the hammer. I assume that this is do to the Wolffe heavy power spring that I installed. I was getting soft primer strikes when I first bought the rifle. Not sure if this symptom is a relevant issue, but it can't hurt to replace the part. Quote Link to comment Share on other sites More sharing options...
JMArguien Posted August 1, 2013 Author Report Share Posted August 1, 2013 I will follow-up after I get the rifle out to the range. Hopefully it will be this weekend. Thanks again for all the advice! I am coming to realize that Lr.308s may resemble AR-15s but they seem much more finicky. Quote Link to comment Share on other sites More sharing options...
washguy Posted August 1, 2013 Report Share Posted August 1, 2013 daaamn... I missed that one completely! soo I dont deserve to own all my 308's....ill be taking them to the police buy back program! :binkybaby: Wash Quote Link to comment Share on other sites More sharing options...
blue109 Posted August 1, 2013 Report Share Posted August 1, 2013 I will follow-up after I get the rifle out to the range. Hopefully it will be this weekend. Thanks again for all the advice! I am coming to realize that Lr.308s may resemble AR-15s but they seem much more finicky. The problem is that there is no standard so the aftermarket is just doing its own thing. I know jp stuff is good when it works...but its picky and seems to like certain combinations. it is possible to build a balls out reliable 308 if that is your goal. Quote Link to comment Share on other sites More sharing options...
unforgiven Posted August 1, 2013 Report Share Posted August 1, 2013 Hey brother Jeff,hell with the give back.Send that stuff to me I'll dispose of it my way. >:D Quote Link to comment Share on other sites More sharing options...
JMArguien Posted August 2, 2013 Author Report Share Posted August 2, 2013 Range Report. The new ejector did nothing to fix the problem. On a wild hair I removed the Phase Five Extended Bolt Release (v2/308) and put the standard bolt catch back in. The rifle now cycles perfectly....then my Troy battle Axe stock broke and the main pin for the compartment latch fell to the ground. Some days it just doesn't pay to get out of bed. Troy is sending me the new parts to fix the stock and I am returning the Phase Five EBR. I don't know how it was affecting the bolt only that is casing a failure to eject resulting in consisten double feeds. Does anyone have any negative expereinece with Phase Five EBR v2/308? Quote Link to comment Share on other sites More sharing options...
Robocop1051 Posted August 2, 2013 Report Share Posted August 2, 2013 I just installed one on mine. Now you're making worry! Quote Link to comment Share on other sites More sharing options...
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