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+--- Thread: Stove pipes. (/showthread.php?tid=1850)
Stove pipes. - turbotech - 01-02-2012
Hello all. This if my first post here. Been a member for a while now.
I've got an Alexander Arms 6.5 complete upper taht I have shot about
60 rds through. Using the factory 10rd mag and a C-Products 5rd mag.
I have had about 10 rds stove pipe on me. The first outing with the rifle
it happened several times so I disassembled the BCG and ultrasonic cleaned all parts.
Went back together with CLP. Took it out again yesterday and put about 40 rds
through it. Same issues. Is this a common thing or am I doing something wrong?
The lower is an AMMO Surplus with a RRA parts kit with match trigger.
Any help would be greatly appreciated.
Thanks
Stove pipes. - RStewart - 01-02-2012
What buffer spring do you have?
Stove pipes. - jwilson1985 - 01-02-2012
check the feed ramps,make sure all is ok there ,also as stated above buffer and spring are an area to look
Stove pipes. - LRRPF52 - 01-02-2012
Welcome! What ammo, barrel length, gas system length, gas block type, buffer weight? When you say "stove pipe", do you mean a spent case is trapped between the bolt carrier group and the ejection port, sticking out like a "stove pipe" at a 90 degree angle from the upper?
Stove pipes are usually caused by short-stroking, which is usually caused by gas leakage, or too fast of a powder for the projectile, and a downward spiraling pressure curve situation that is required to run the bolt carrier group sufficiently. Any excess over or under the optimum gas impulse for running the system can result in stove pipes. It's a balancing act.
Stove pipes. - Mutt - 01-02-2012
Are you using factory ammo or reloads?? I would assess a brand new rifles function with factory ammo. I run factory till it gets broken in. That takes your reloading skills out of the equation.
It's new ..... and you are probably running it too dry. Lube the hell out of it. Run it wet. This should get better after about 150-200 rounds.
Stove pipes. - davidj - 01-02-2012
It's new. It is supposed to work. Same thing happened to mine. I wasted a lot of ammo before sending it back. I was amazed at what they had to do to get it working.
Save yourself the frustration. Call AA and get a return authorization. Then send it back.
Stove pipes. - turbotech - 01-03-2012
Well thank you for all of the input. Iam runing a Factory Rock River A2 operator stock with the buffer and spring taht came with it as a package deal at the gunshow. The ammo is Alexander Arms 123Gr HP Lapua Scenar.
That is all that has ever been through it. This is AA's Entry completed upper that I have. 19.5" barrel with the WCI muzzle brake. I did lube the BCG when I went back together with it, but may have not used enough.
My thought was that too much oil and it would gum up.
Stove pipes. - Mutt - 01-03-2012
On a new rifle, sometimes the surfaces and finish is a little rough. Many times, these parts can be a little stiff till the finish or surface area is used and becomes smooth and more shiney. As this happens, the parts will run smoother and smoother over time. Now, let these same parts dry out and the friction between them increases. Running them "wet" (especially the BCG) .... with a visible amount of oil on the surface, can help alleviate this. As the parts break in and smooth out, they won't need as much oil to run smoothly.
Next time your are at the range, take out your BCG and spray it with oil till it is starting to drip off. Give the BCG a shake to get rid of the excessive dripping and stick it in the upper. See if this solves your problem. Too many people want to resort to cutting springs and other drastic measures when they typically aren't neccessary. If running it wet doesn't help with the issue, then come back and let us know.
Oh ..... yes, running it wet will slop things up and make it messy. But, you don't have to run it like that foreever. And, it clean up easily enough.
Stove pipes. - turbotech - 01-04-2012
Mutt, Thanks for the advise. I'll try that. I work the gunshow this weekend soit will be next before I get to the range.
Stove pipes. - Rust - 01-07-2012
Check to make sure the gas block is set in the right position. It's possible it was installed canted or set to far back on the barrel and is restricting gas flow. There should be a small gap behind the gas block before it hits the shoulder of the barrel.
Stove pipes. - noobshooter - 01-08-2012
Things like making sure the buffer in the tube is a rifle buffer in an A2 stock and not a carbine buffer and checking for gas port alignment make more sense than lubing a bolt 'til it's wet and firing rounds off to break the action in. Getting excess oil on rounds from a wet BCG can cause higher chamber pressures. Mechanical problems require mechanical solutions.
Stove pipes. - Mutt - 01-08-2012
By all means ...... check the buffer and make sure the gas port is lined up correctly. It's good to know your own weapon. But, when (or if) you find that everything seems fine, just put some oil on it and see if that helps.
Simply cycling the action by hand can help. Holding the clip on the charging handle open so it doesn't keep catching the upper reciever and locking (and tearing up the notch), pull the charging handle 150-200 times (which only takes about 10 min) will usually wear in the parts enough to smooth them out and let them slide easier. It mimics shooting the rifle 200 times ..... without using up ammo.
Since the OP admits that he didn't oil it much ..... I'm guessing that's the issue. I'll wait till the OP goes back to the range and proves me wrong .... before getting into with anyone about what's wrong with it.
Stove pipes. - Darkop - 01-08-2012
Check the Ejector and spring and make sure it moves freely, oil it. Check the Extractor and make sure there are no brass shavings caught under there. Which Extractor spring and insert are in the bolt now?
Until that day,
Darkop
Stove pipes. - Bill Alexander - 01-08-2012
davidj Wrote:It's new. It is supposed to work. Same thing happened to mine. I wasted a lot of ammo before sending it back. I was amazed at what they had to do to get it working.
Save yourself the frustration. Call AA and get a return authorization. Then send it back.
Pay attention to this guy. It is supposed to work. We most likely have a slightly sharp extractor which needs the edge nocked off.
Call!
Stove pipes. - davidj - 01-09-2012
Thanks Bill. I might add that it has worked flawlessly since it was returned.
Stove pipes. - noone - 01-10-2012
I tracked my stovepipes back to an over powerful extractor spring. The spring would press the case onto the opposite side of the bolt with such force that the ejector couldn't push it off quickly enough during cycling. Once I swapped out the extractor spring for one without so much power, everything started working just like it should.
I love cheap and easy fixes. It is just another thing to consider when you start sorting through all the suggestions you receive here.