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PostPosted: Fri May 10, 2019 2:48 pm 
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Joined: Mon May 06, 2019 4:07 pm
Posts: 79
I have a centrr point 3-9x40 scope very nice scope. The threads for the windage turrets got striped ( the threads in the scope not on the turret) i tryed to rethread it with a rethread tool but accedently made the female threads a hair too big so the turret wont screw in? Any suggestions how to fix it and to get the windage turret back in place?


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PostPosted: Fri May 10, 2019 4:53 pm 
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Joined: Thu May 07, 2015 8:30 pm
Posts: 1184
Location: Eastern Townships, P.Q.
One solution could be to use this: https://www.amazon.ca/C-R-Laurence-FSTR ... B000WSEUII

It's kind of a two-parts epoxy that rebuilds damaged threads.

Another one would be this: https://www.stanleyengineeredfastening. ... aster-sets

But you need to know exactly what are the threads on your scope, and they may well be ''special'' threads. Also be aware that you probably purged out the nitrogen that was in your scope by removing the turret, so if you don't want it to get fogged you'll need to have it re-filled. I believe a gunsmith can do that, though I never had it done.

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PostPosted: Fri May 10, 2019 5:12 pm 
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Joined: Mon Aug 08, 2016 7:23 am
Posts: 2772
Location: Somewheres near the Atlantic
airmec wrote:
One solution could be to use this: https://www.amazon.ca/C-R-Laurence-FSTR ... B000WSEUII

It's kind of a two-parts epoxy that rebuilds damaged threads.

Another one would be this: https://www.stanleyengineeredfastening. ... aster-sets

But you need to know exactly what are the threads on your scope, and they may well be ''special'' threads. Also be aware that you probably purged out the nitrogen that was in your scope by removing the turret, so if you don't want it to get fogged you'll need to have it re-filled. I believe a gunsmith can do that, though I never had it done.


Problem I see with any sort of epoxy. Is it getting it into the scope and locking up the adjustments. Negating what you are trying to fix. Or a long term fix. And I don't think there is enough material for a heli coil. Well you could... But be pushing on the adjustment piece and run into another issue, with not being able to change the windage the other way.

And appears raven used a tapered tap. Which looking at the amount of space, didn't even start cutting threads. He needed to use a bottom tap. Basically he just reamed it out.

Amazon has Fitco 3-12x40AO scopes for 45.00 with free shipping.


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PostPosted: Fri May 10, 2019 8:19 pm 
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Joined: Mon May 06, 2019 4:07 pm
Posts: 79
Ya thing is i really like this scope had diffrent colour reticle turret as well as windage and elevation i might try one of these options...thanks for the help.


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PostPosted: Mon May 13, 2019 6:38 am 
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Joined: Sun Mar 24, 2013 5:51 am
Posts: 226
Location: Richmond, BC
Man, just buy a new scope... centrepoint scopes are not that great to begin with... it will probably break down on you after a hundred shots from your raven.... I had one and the crosshair went diagonal..


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PostPosted: Mon May 13, 2019 9:16 pm 
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Joined: Sat Mar 16, 2013 5:15 am
Posts: 3573
Location: Edmonton
Several member dealers here have great deals on great scopes. Check out the Dealer Corner.


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PostPosted: Tue May 14, 2019 11:07 am 
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Joined: Wed Oct 17, 2007 3:27 am
Posts: 2585
Location: Winnipeg, Canada
I had a straight 4 X 32 CenterPoint that came packed with a Crosman springer. Out of the box, optics looked like the bottom of an old glass 2 L Coke bottle, except blurrier. That is the only scope I ever put in the trash.

I'll agree with the post above. It would be cheaper and less frustrating in the long run to just get a new scope.
The low end Discovery scopes, esp the 3-9 X 40 A/O are a great, minor investment. I get along fine with the old style front A/O focussing.
Very nice reticle, and relatively clear optics for a very reasonable price...

-D.S.

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PostPosted: Tue May 14, 2019 4:22 pm 
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Joined: Wed Feb 07, 2018 8:10 pm
Posts: 450
Location: Winnipeg MB
I must agree with last few posts. Some times it is better to quit while you are ahead & get a new one. My airgun repair guy keep trying to teach me this. In hindsight, I should have heeded his warnings, and not ended up with a rare vintage airgun that keeps breaking and still needs a paintjob.

To quote the gambler (KR):

You've got to know when to hold 'em
Know when to fold 'em
Know when to walk away
And know when to run


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PostPosted: Tue Jun 04, 2019 9:51 pm 
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Joined: Sat Jan 25, 2014 9:16 pm
Posts: 1271
Location: United States
I'd try the epoxy thing, assuming you can't get a helicoil that size. You've got nothing to lose right? Am I to assume the threaded part of the turret isn't even needed? Meaning you could epoxy the base of the turret to the flat surface of the scope? I don't have that exact scope so I'm just guessin. If so then I'd certainly epoxy it. If it needs to thread in/out, like to lock the adjustment, then could you live w/o the lock?
If all else fails and you want to go full redneck you can force thread in a plug of wood or plastic. Or epoxy it in or on. The plug would have a pre drilled hole so a misc machine screw, like 8-32 or 3mm etc, will be a very tight fit. That screw with it's tight fit will be your adjustment. I did say full redneck, so no making fun...

trickster2000: If you meant the reticle rotated, that's fairly common and you can just rotate it back and peen it, or glue it in place. If only one reticle "hair" moved you're in deeper water but sometimes that can be fixed too. You simply push it back and glue it but it's so delicate you may break it, and odds are it'll never look quite right so it's a redneck "can't afford another scope" fix. When I was a little kid w/ no $ I replaced a broken reticle leg with a hair from my head, which looked awful but it worked well enough to keep shooting. I remember it too, it was a Daisy 4x20 scope for <$10 that I saved for to put on my Crosman 760. No way I was just tossin it in the trash. Duct tape and bailin' wire, gidder dun!


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