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4/24/2005 5:49:52 PM EDT
When I try to load a clip into the receiver the bolt comes forward before the clip is down in the magazine all the way.Shouldnt  the op rod handle be pushed forward once a fresh clip is inserted to chamber a round. also when rifle is fired the elevation knob moves when set at 1 to 2 hundred yards. Will replacing the elevation knob fix this problem. Any help would be appreciated......thanks.
4/24/2005 5:55:56 PM EDT
[#1]
Are you pulling the op rod all the way back so it  locks and doesn’t just hang up.
use the knife edge of your right hand to hold the op rod back while you insert the clip with the fingers of your right hand.  Sometimes the op rod will move forward on it's own but sometimes it requires a bump to get it started.  

Elevation knob, make sure everything is tight.
Maybe disassemble and reassemble and recheck
4/24/2005 6:49:02 PM EDT
[#2]
Make sure the bolt is pulled ALL the way back until it catches. Some people will only pull it back so far, to where the bolt catches on the thing-a-majig (I can't think of the correct term right now. Alzhimers kicking in you know). Slide follower....thats it!! The bolt will release as soon as the slide follower is pushed down a bit.

Some rifles will need to be given the M1 "bump" to chamber the first round, others won't.

If the elevation knob is moving (rotating), you need to tighten the screw, while holding the knob. Of course you should sight in/adjust your sights before doing so.
4/26/2005 4:40:27 PM EDT
[#3]
It's rare for a M1 to close, or even start to close before the clip is fully seated in the magazine and pressure is released from the top cartidge.  As the parts wear they become less and less likely to release and older rifles need a bump of the oprod to close the bolt.

As noted, besure the bolt is fully to the rear -- and that all parts inside are clean and lightly lubricated.

The tension on the elevation knob of the M1 and M14 is controlled by the screw in the center of the windage knob.  All the screw in the elevation knob does is keep the range scale from slipping.  Bring the sight all the way up and grip the stock with the fingers of one hand while you push on the top of the sight with the thumb (same motion as loading a clip).  If the sight slips tighten the screw (the fully looking screw) in the center of the windage knob one (1) click.  Repeat (one click at a time) until the sight won't depress with your thumb.  Don't shortcut this with 2 clicks as you don't want to overtighten this setting.

-- Chuck
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