PDA

View Full Version : AK feeding issues. Suggestions?


chead
02-16-2012, 12:19 PM
I've got a new WASR-3 that's having problems feeding. It seems to run fine but about 3/100 rounds will get caught by the bolt on the way to the chamber. Pulling the bolt back a little to let it clear the case will usually let it hop right up and chamber.

I've tried both a East German steel a Bulgarian poly mag, with American Eagle and PMC Bronze. Both exhibit the same behavior. Sometimes you can run 100 rounds and it won't have a problem, sometimes it's the first mag out. It doesn't fail to feed at any particular round count from the mag.

It doesn't seem to be over-gassed since it's not banging off the back trunnion. I can't figure out why it would be under-gassed, either. There's no abnormal wear on the bolt, carrier, or rails.

I'm kind of out of ideas at this point and would love some input.

http://i.imgur.com/ipAXRl.jpg (http://imgur.com/ipAXR)
http://i.imgur.com/yd2Xvl.jpg (http://imgur.com/yd2Xv)
http://i.imgur.com/ArZ7xl.jpg (http://imgur.com/ArZ7x)
http://i.imgur.com/JlgLwl.jpg (http://imgur.com/JlgLw)

sd_shooter
02-16-2012, 1:58 PM
Just a guess, but since it's new, perhaps it just needs to be broken in some more?

When they were brand new, on both of my AKs the carrier would "stick" in the rear position if I cycled them slowly by hand. My solution was to lube the hammer and the underside of the bolt carrier and eventually it worked itself out.

But in this case of severe sticking perhaps there are some burrs or machining marks preventing smooth operation. Polish any rough spots and apply lube.

ott1
02-16-2012, 2:01 PM
I've heard stories about feed ramp problems. Probably need to shape it a little bit.

chead
02-16-2012, 2:18 PM
Shape it in what way? I'm not sure what I would do to a 5.56 feed ramp.

ott1
02-16-2012, 2:57 PM
Shape it in what way? I'm not sure what I would do to a 5.56 feed ramp.

I'm no expert. You'll have to see how each round is trying to enter the chamber. From the left side of the mag and the right side. Depending on the angle, sometimes when the ramp is too shallow, the tip of the round would hit the bottom of the breech.

Similar problem to yours but Bulgarian instead of Romanian.
http://www.ak47.net/forums/t_4_76/106540_5_56_Feed_Ramp_Fix.html

Hopefully, others would chime in about your WASR feeding problems.

mod1217
02-16-2012, 3:05 PM
I think the lip of the cartridge (where the cartridge meet the bullet) is getting snag on your feed ramp try running your finger up the feed ramp to see if it has sharp edge specially where the feed ramp is closest to the magazine if it does polish it a little bit. Or try using steel case ammo case through it steel is harder than brass and would polish that ramp faster than brass case. It just need breaking in

SJgunguy24
02-16-2012, 3:16 PM
I hate 556 AK's, this is one of the reasons.

scotthmt
02-16-2012, 7:02 PM
I hate 556 AK's, this is one of the reasons.

agreed, your magazine is sitting a hair low. Make it sit higher, do what you have to in order to make that happen.

chead
02-16-2012, 9:46 PM
What's the best way to do that? I've got some M90 mags in the mail, and I'll do a thorough clean and lube and put another few boxes through it and see what happens.

chead
02-16-2012, 10:04 PM
Should I just swap out the mag catch?

SJgunguy24
02-17-2012, 5:44 AM
Should I just swap out the mag catch?

Do whatever it takes to get that mag to as high as possible. The nature of the 556 case makes the best feed angle almost straight in. The lack of taper in the case design makes it a PITA for AK's. I HATE 556 AK's. The only one I own feeds from AR mags. I have the parts to build a Polish Beryl, that's a 556 gun. My clone will not be a 556, did I mention I hate 556 AK's?

Mail Clerk
02-17-2012, 5:49 AM
I've got a new WASR-3 that's having problems feeding. It seems to run fine but about 3/100 rounds will get caught by the bolt on the way to the chamber. Pulling the bolt back a little to let it clear the case will usually let it hop right up and chamber.

I've tried both a East German steel a Bulgarian poly mag, with American Eagle and PMC Bronze. Both exhibit the same behavior. Sometimes you can run 100 rounds and it won't have a problem, sometimes it's the first mag out. It doesn't fail to feed at any particular round count from the mag.

It doesn't seem to be over-gassed since it's not banging off the back trunnion. I can't figure out why it would be under-gassed, either. There's no abnormal wear on the bolt, carrier, or rails.

I'm kind of out of ideas at this point and would love some input.

http://i.imgur.com/ipAXRl.jpg (http://imgur.com/ipAXR)
http://i.imgur.com/yd2Xvl.jpg (http://imgur.com/yd2Xv)
http://i.imgur.com/ArZ7xl.jpg (http://imgur.com/ArZ7x)
http://i.imgur.com/JlgLwl.jpg (http://imgur.com/JlgLw)

chead,

What your having is a simple timing issue. Your magazine springs get weak due to usage over time the spring can't force the ammo up to the lips fast enough.

Try this..... If you can remove the bottom of the mag give it a good cleaning and oiling. Maybe the inside the mag body is just dirty. If that doesn't help you then just toss the mag for a new one and in the future don't fill your mag to full capacity if you can.

Mail Clerk

atakacorp
02-17-2012, 3:08 PM
I had same problem with my PSL(ak on steroids:)) Do you see from witch side of the mag it usually have a problem? ,get a pliers and pull the mag’s lip up a little ,try it. do it again if needed ,fixed all of my mags
Good luck bud:43:

Mail Clerk has a good point there, clean and grease those mags