Reviving this thread.
Last time I fired this rifle was in november '11, and it still has the same problems with type 2 malfunctions.
I stuck it in the closet and bought an AR10 and an AK...
I dug it out a couple of days ago, loaded up the 5 round ruger magazine and decided to see if it was a magazine problem.
Not so. Even with the ruger mag, I was able to replicate the problem my ejecting the rounds manually. About 3-4 times in 60 rounds.
I went to the range today and fired 55 rounds, with 2 jams.
Up until now I have exchanged the extractor. Apparantly this did not help much.
Soooo,
I headed over to my friends house. I have a 581 and he has a 582.
His rifle functions and has always functioned 100%.
So we pulled out his ejector bolt stop and my ejector bolt stop, and sure enough, there is a visible difference between them.
The lever that sticks out of the bolt stop and acts as the ejector is visibly more bent on his ejector bolt stop, causing it to engage ride higher in the slot that is cut in the bolt for the ejector. I hope this is making sense.
So we put his ejector in my rifle. Cycled 60 rounds through a Promag, without a hiccup. Could not replicate the problem.
Put in my ejector, and I'm back to square one. Type 2 malfunctions all over the place.
I ordered a new ejector from Numrich, but this is not at all made to fit the 580+ series. The lever that acts as the ejector is about 1/8" shorter than the lever on both the ejector bolt stops on mine and my buddies rifle.
The lever is so short that it doesnt even contact the rounds that are extracted.
Hence, the lever doesnt engage squat, and no rounds are ejected what so ever.
That's the only ejector bolt stop I've found so far and it didnt fit, so I was a bit stumped on what to do.
Frustrated and annoyed, I did the only thing I could do:
Brought out the hammer.
Stuck my ejector in a vice and hammered away until it was shaped like the ejector in my buddies rifle.
Results was... confusing.
While I earlier was able to replicate the problem by manually cycling rounds slowly (looking through the empty magwell I can see the ejector start to engage the round, and then the round slip past it),
this is now a non-issue. The rifle ejects violently when I singleload it and rack it.
However, if I stick a loaded mag in the well (Both Promag and Ruger), every time I cycle the action the ejector fails to eject the round.
Dump the mag, single-load a round and rack it, and the round is flying towards the next county. Insert loaded mag and rack it, and the round doesn't leave the extractor.
To me this makes about as much sense as.. Well I don't know.