shimming scopes the right way
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shimming scopes the right way
What is the right way to shim a scope? Trying to put zero in the middle of the scopes adjustment range, to allow more room to go from chickens to rams. I have used shims under the rear of the scope for years, but it can lead to the scope being marked up. I understand that it is not the most correct way to do it, but I also don't know what is. I thought shimming the base and then either glassing the rings or lapping the rings would allow for more scope to ring contact, but I can't find any smiths that will do it. What do you advise?
- acorneau
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Re: shimming scopes the right way
I can't say what the "right" way is. I've always used heavy plastic (like from a milk jug) for a shim when needed and have not had any problems with marring the scope up.
If you can spare the weight, the Burris Signature rings come with spherical insets that self-align and will not mar the tube. You can get various offset inserts to shim for elevation or even windage if you turn them sideways.
If you can spare the weight, the Burris Signature rings come with spherical insets that self-align and will not mar the tube. You can get various offset inserts to shim for elevation or even windage if you turn them sideways.
Allen Corneau
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Re: shimming scopes the right way
I use plastic shims also. Have a set of Harrel precision aluminum rings. They are great, but they do leave marks.acorneau wrote: ↑Mon Dec 04, 2023 10:16 am I can't say what the "right" way is. I've always used heavy plastic (like from a milk jug) for a shim when needed and have not had any problems with marring the scope up.
If you can spare the weight, the Burris Signature rings come with spherical insets that self-align and will not mar the tube. You can get various offset inserts to shim for elevation or even windage if you turn them sideways.
It would help if I would set it and forget it, but I tend to move a scope a 100 times till I get it right. That is what marks the scope.
Anybody ever tried glass bedding rings?
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- A Poster
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Re: shimming scopes the right way
Only shims as well. I use one and on a very few occasions two pieces of painters tape on the inside bottom of the rear ring.
Maybe the right way is at the base. There’s a number of options on the market to go at it that way. BKL has a one piece mount for grooved receivers and there’s lots of options with standard screw on rails and bases.
Maybe the right way is at the base. There’s a number of options on the market to go at it that way. BKL has a one piece mount for grooved receivers and there’s lots of options with standard screw on rails and bases.
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- B Poster
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Re: shimming scopes the right way
I have a EGW 20 min base on a long range handgun, I think 10 min would have worked just as well. The one piece base is heavier than 2 pieces, but I don't know why you couldn't cut out the center as long as each end was kept properly oriented.
- cslcAl
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Re: shimming scopes the right way
I always put shims under the scope base. Usually .010ths will do the job.
Al Foust
Al Foust
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