Re: Odd AR15 Problem




On Mon, 8 Aug 2005 01:16:11 +0000 (UTC) Eric B <ericb@xxxxxxxxxxxxxx>
wrote:

>Got a odd problem, maybe one of you gentlmen can point me in the right
>direction?

>DPMS AR15 w/ bull barrel. No mods, well maintained, clean, less than
>1000 rounds. With no ammo, weapon performs function check flawlessly.
>All components apear to be within spec, no excessive wear or obvious
>problem. Weapon shoots fine. No function problems at all with a
>variety of ammo. No problems shooting rapid fire.

>However. If I pull back the charging handle and load a live round,
>once I release the charging handle, I cannot clear the weapon. The bolt
>is locked forward and will not unlock unless I either fire it, in which
>case it will cycle fine and load the next round in the mag, or I shotgun
>it and use a tool to leverage the bolt back.

>I have removed the upper in order to clearly see the action while
>loading. Placing a dummy round into the chamber and riding the bolt
>forward, it appears that the bolt stops before fully locking. If I press
>down on the bolt with substantial pressure, it will lock. It will then
>stick and I am unable to unlock it by simply pulling back on the bolt.

>Any ideas?

Odd problem? I don't think so. That type of problem can be found with
other types of rifles. Either the cartridge fits too tightly to the
chamber wall or the locking recesses are holding the locking lugs too
tightly when a cartridge is chambered. I used to have the same problem
with an un-issued milsurp bolt-action rifle that I acquired. The rifle
has matching serial numbers on the receiver, barrel and bolt. I fixed it
simply forcing a slightly oversized wire chamber brush into it and
turning it very slowly for about five minutes. After doing that I was
able to unlock a loaded chamber and extract the cartridge very smoothly
and easily simply by operating the bolt in the normal manner. BTW, this
rifle shoots great. I get very tight groups right in the center of the
bullseye. No sight adjustments required when I took it to the range to
zero it. It is a Russian made Mosin-Nagant type 44 carbine.

Q.

What do you mean by the phrase "shotgun it"?

Sam Heywood
--
NTReader v0.32w(O)/Beta (Registered) in conjunction with Net-Tamer.



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