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Posted: 11/1/2014 3:24:46 PM EDT
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Well I gone and done it. A few weeks back I put a Burris pistol scope on my Ruger GSR but after several range sessions I think I got a NIB QC escapee. After the first range session I removed everything from the scope rings all the way down to taking the rail off the barrel. I wasn't in the best mood when I did this and I think when I reassembled everything I grabbed a red bottle of loctite instead of the blue one. Now the rear two screws of the rail won't move (front two came out as they should). It's my own stupid fault for having both bottles in front of me but now I can't get the rail off. I dont know that I grabbed the wrong bottle but it's the only thing I can come up with as to why two of the screws came out and the other two are seized up.
I've already used a solder gun to heat the screws (held on one for 10 minutes) and still they won't budge. I already boogered the head of one of these screws (I guess on the bright side I know the rail isn't moving). But I need to take the rail off to mount a conventional scope which I'd like to do to confirm it's the Burris scope that is messed up and not the rifle that is shooting all over the place. Any suggestions on how to get these screws to break loose without destroying everyone? I'm already planning on getting new screws for the rail so i dont care about them but I dont want to risk break the screws off in the gun either. |
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Get a can of Kroil and apply a few drop to the screws. If you can see the ends of the screw inside the receiver apply some Kroil there too.
Give it a day or so to fully penetrate. Then try the screw that doesn't have a damaged head. If you used Loctite Red and the soldering iron didn't do the trick, I'm not sure where to go other then more aggressive techniques. You might try a small acetylene torch with a tip that you can adjust to a needle flame and try that on the screw heads. One trick there is to stick a short section of Allen wrench in the holes and heat the Allen wrench section to transfer the heat. Remember that you're dealing with a receiver so you can't heat it too hot without risking the heat treating. If that doesn't work, or you feel uncomfortable about that much heat, the best option is to use a milling machine to machine off the heads of the screws. The milling machine allows far more accuracy then any shop drill press so you won't damage the mount itself. That will allow you to get the mount off, leaving the shanks of the screws exposed. There may be enough of the shanks left that you can get a grip on them with a Vise-Grip and turn them out. Use a Vise-Grip in GOOD condition to insure a good grip. If that doesn't work, you're down to using a milling machine to mill out the screws. Using a milling machine allows a good machinist to "bump" the milling bit around so he can machine out the screw so accurately that all you have to do is use a pick to pull out the actual threads. That looks like you're pulling a thin spring out, since the threads come out in a coil. You cannot do that with any shop drill press. |
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