AR Sponsor
Posted: 3/9/2014 9:47:47 PM EDT
| i took my dpms ar 15 223/5.56 out today for the first time. the rifle would not chamber the second round or even grab the round from the mag at all. after firing the chambered round the action would cycle but failed to grab and chamber the next round. if i cycle the action by hand it ejects and chambers the next round flawless. i am using surplus ammo and have not tried any other as of yet but i feel that this should not matter due to it is army surplus and should work. anyone see this problem before? could it be that these surplus rounds don't have enough energy to cycle the action back far enough to grab the next round? or something else? |
| When you "hand cycle" the rifle are you pushing up on the magazine? If so then you need to tighten the magazine release. You do this by pushing the magazine release button then grabbing the magazine retaining bar on the left side of the rifle and screwing it in one complete turn, then check if you are able to get rounds to feed without pushing up on the magazine. Good luck. |
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Quoted:
i took my dpms ar 15 223/5.56 out today for the first time. the rifle would not chamber the second round or even grab the round from the mag at all. after firing the chambered round the action would cycle but failed to grab and chamber the next round. if i cycle the action by hand it ejects and chambers the next round flawless. i am using surplus ammo and have not tried any other as of yet but i feel that this should not matter due to it is army surplus and should work. anyone see this problem before? could it be that these surplus rounds don't have enough energy to cycle the action back far enough to grab the next round? or something else? Would help to know what surplus you are running, and if you have tried some USA new factory brass ammo to weed out the surplus. But if this is a factory built DPMS rifle, would dare to guess that the problem if related to not correctly cleaning the rifle (including using a chamber brush with CLP to scrub the chamber) and correctly CLP lubing the upper bearing areas of the rifle before it was fired by you for the first time out. Also out help to know what mags you are using, and if you pulled them down and CLP cleaned them as well. |
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Don't use junk ammo to break a new gun in, or expect junk ammo it to fire and function correctly in your particular gun if you haven't tried it with good results previously.
New guns need to be broken in before you can expect them to go bang reliably. Guns are usually regulated to function with Federal/Lake City M193 or M855, not the cheap foreign junk ammo that you find on shelves which may not generate the correct pressure or pressure curve to make the gun function properly. |
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