AR Sponsor
Posted: 9/25/2006 6:46:20 AM EDT
| This is my first AR, and I am experiencing difficulty when clearing a live round. The bolt and charging handle are super tight to pull back, I have to use 2 hands to pull it back. It fires and ejects spent cases with no problems. I took it home and cleaned it thoroughly, oiled it up and it still is the same. By the way it is a DPMS 24" bull barell. Any help would be greatly appreciated.hinking.gif I should also add tha with out a round chambered it operates very smoothly. |
If his is factory ammo, Then the bolt just needs to mate with the barrel extension. In the mean time, give the butt stock a bump off the ground while pulling down on the charging handle. The bump will help you clear the round until every smoothes out. If this is with reloads, Suspect that you are over crimping the bullets, and the excess pressure is slightly flaring out the case shoulder, causing the bind. Bottom line, with just the upper in hand, insert a live round into the chamber, use a wooden dowel and give the back of the case a few taps to make sure you have seated the round fully in the chamber, then turn the muzzle straight up, which should cause the live round to fall out of the chamber. If the live round falls out, your golden and just need to go shoot the rifle some more to break it in. P.S. Welcome to the site!!! |
The round sticking in the chamber is a bad thing (bullet embedding into the rifling on loading), but don’t lose it yet if the ammo that is sticking is 55gr. If the chamber is short throated, and the barrel just happens to be something like a 1-8 or 1-7, get your hands on some 69 gr ammo and retest the free drop. The long ogive bullets need to have a shorter headspace for less jump to lands when loaded normal OAL, and you may have lucked out with such a barrel over one that which was normal head spaced (read less jump of the bullet to embedment at ignition, the more accurate it will be). Note: if the game plan is to shot the 55/62 bullets (or what you have), then the barrel needs to be back to have the chamber corrected. Bottom line is the bullet must jump to the lands at ignition (even if .001), since an embedded bullet at ignition causes a working barrel pressure spike at ignition (read a bad thing). |
AR Sponsor