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Posted: 10/24/2005 5:02:17 PM EDT
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Just finished my AMD-65 build on an OOW recvr. Everything went well with the exception that when bolt pulled to the rear, it does not want to go into battery without a nudge from a plastic small mallet. hmmm, bolt rails need some work? Thanks anyone for some assistance. My Maadi is a bit sticky after all these years, but never fails to go boom, but this gal is too sticky to go boom. Run some flitz on the rails and work the action while watching Wild Geese? |
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As you said the rails may need a little tweekeing. Or, the trunion could be set too far to the rear allowing the carrier to climb out of the top rail. This happens a lot. The OOW receivers are just a bit too long. When the rear trunion is flushed out with the rear of the receiver, it does this. The only "fix" without a lot of work is to add a buffer to take up the extra space You can check for this by putting the bolt/carrier assembly and the recoil rod assembly in and drawing it to the rear. Now see if you can lift the carrier out of the receiver. Hope this helps, Mike |
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You should also check to see that the barrel is in line with the reciever. I had one that everything ran great till finalm fit up. At that time the bolt/carrier would go almost closed. I had to tap it on the bolt pull back arm to get it to close. The bolt ran wonderfully by itself. The bolt carrier ran well by itself. When I put the 2 together, it bound up right after the bolt rotated and locked in place (as viewed from mag well). It seems that the barrel and reciever assembly were perhaps a few degrees off. You would not see it unless you were looking for it. I had spent hours adjusting, blueing, filing, fitting etc. I finally got pissed. I threw the barrel/reciever/bolt/carrier on the work bench. I then proceeded to whack the top of the bolt carrier (in closed up config.) with a dead blow hammer. This was not a measure to adjust anything. It was a venting of frustration. WHen I hit it, the carrier jumped back. It had not done this before. The bolt/carrier now ran free and easy all the way. The reciever was resting on the back edge and a lug on the barrel was the other resting spot. When I hit the bolt carrier, I suppose that the reciever/barrel/trunion was able to adjust their relationship just enought to allow stuff to align correctly. Sauramen |
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