Screw thread issue

E

eisenhower

Guest
I have a brand new Remington 700 and a Warne one piece scope mount for it. The two rear mounting holes in the receiver are destroying the screws when I try to screw them in - defacing the threads something terrible. It's not a screw issue, the front two holes work fine, it's poorly cut threads in the rear holes or something.

If I bought a screw tap the right size, do you think I could recut the threads or is this one going to have to go back to Remington?

Thanks,
DeWayne
 
First of all, make sure you have bad threads in the rear holes. Take a 6x48 screw and try it with out the base on. If the screw goes in to both holes straight and normal. Look to the base as being the problem and not the rifle.

It's for me is a non issue if the rifle holes need to be chased, but that's not everybody.

Return it to the dealer you bought the rifle from if it is a problem with the rifle. I've taken four taps and ran them into all four holes to check to see if they are leaning and straight one to he others. Simply by sighting down the line of taps.
 
Al, it's the screws, not the base - the screws won't go into the holes by themselves without grinding away a large portion of the threads. Can't take it back to the dealer as this was a Gunbroker purchase, and the local FFL just received it for me, he had nothing to do with the rifle sale. I don't have a problem shipping it to Remington for warranty work, but if I can fix it myself, I'd rather avoid the trouble and wait to get the gun back.

When you say "chase" does that mean running a 6x48 tap into the hole to recut the threads? Is that the right thing to do in this case?

DeWayne
 
screws

As Al suggested run a known 6-48 screw into holes. If ok check the thread on the screws. I once bought a new base and it was packaged with incorrect thread screws from the factory.

bjm
 
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Just run a 6 x 48 tap into the rear holes with the bolt out and some cloth jammed in the bolt race to keep the debris out of the trigger... you really can not hurt anything...
 
some caution

when you use the tap as suggested...it must be started perfect. There is always the chance of breaking off the tap and then you have more problems.
 
base holes

Some times the Warne one piece base will not have the correct spacing, so enlarge the holes in the base slightly so they will align better with those in the receiver. If the holes are out of alignment, it will cause the screws to try and cross thread.
 
eisenhower said:
I have a brand new Remington 700 and a Warne one piece scope mount for it. The two rear mounting holes in the receiver are destroying the screws when I try to screw them in - defacing the threads something terrible. It's not a screw issue, the front two holes work fine, it's poorly cut threads in the rear holes or something.

If I bought a screw tap the right size, do you think I could recut the threads or is this one going to have to go back to Remington?

Thanks,
DeWayne
Click to expand...

I can't answer that for you, but I can ask some questions that might help you decide.

Have you ever tapped a hole before? If not, your chances of success are slim but not zero.

However you can practice and significantly improve the odds. Get a 1/4-28 tap, a tap wrench to turn it, a #3 drill and try it in a piece of scrap metal. Get some tap lube at the hardware store. TapMagic is excellent. Then get a tap drill for the 6-48 tap and try that in a piece of scrap.

After you have practiced, you will be in a position to make a more informed decision.

If the hole in your receiver is really ok, running the tap through it properly won't hurt it. If it isn't, and you can get it started straight, you can fix it with some care.

If you mess it up, all is not lost - you can get a gunsmith to drill it out and retap it 8-40 or possibly get one of the Brownells oversize 6-48 taps and screws and fix it that way.

Or, you can look for a local gunsmith and have him/her fix it - a good Smith should be able to fix it in less than a half hour once they get to it. Or you can send it to Remington.

Fitch
 
eisenhower said:
Al, it's the screws, not the base - the screws won't go into the holes by themselves without grinding away a large portion of the threads. Can't take it back to the dealer as this was a Gunbroker purchase, and the local FFL just received it for me, he had nothing to do with the rifle sale. I don't have a problem shipping it to Remington for warranty work, but if I can fix it myself, I'd rather avoid the trouble and wait to get the gun back.

When you say "chase" does that mean running a 6x48 tap into the hole to recut the threads? Is that the right thing to do in this case?

DeWayne
Click to expand...


With out seeing the rifle and the problem first hand, I can not say what your rifle's problem really is. What I can say from your description is this. The screw holes sounds to me like they are correct at 6X48, sounds like the screws you have are wrong/bad. One thing the factory would not do, is send out under size threaded holes. They could have had some one down the line D/T to 8x40, but then you would not have to grind a 6x48 to fit the Id.

Before running out to a gunsmith supply house and buying a 6X48, tap or a 8x40 tap and the number 31 and the drill for 8x40, tap handle and Tap Magic (I don't use tap magic or Do Drill) I use 600 grit tube polish. I would take it to a friend or to a shop that is set up to fix your problem.

You will not find 6x48 bicycle thread taps at the corner hardware store, it is a specialty thread tap. The reason I say this is the money you will spend may not take care of the problem. Why spend money on something you may not need and may not ever use again?

Take it to some one that does this kind of work all the time and let them evaluate the problem. If you want to fix it yourself, then pay them to tell you what the problem is and what the fix will require.

The last thing I would do is send it back to Remington. It's going to cost you a lot more to send it back than it is to have it fixed locally.
 
Thanks all for the help. I found a friend who had the proper tap and we retapped the threads and she's working perfectly now. Saved me having to buy a tap, and more importantly saved sending it to Remington.

Thanks again,
DeWayne
 
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