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Old 10-22-2021, 03:50 PM
eflyguy

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Shimming a scope base?



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Just a general question but reading other threads it had me thinking..

Instead of buying a rail, base or rings to compensate for elevation, couldn't you just shim a standard rail to a certain degree? Once everything is snugged down, I'd think it would be stable. A piece or two of aluminum can, with loctite between?

I've not come across discussions on this, hence starting this thread. Seems like it would be a quick, cheap and easy way to solve the problem?
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Old 10-22-2021, 04:17 PM
StanHi

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If you are thinking of placing a shim under the rear of a O MOA rail, I think it might work. As long as you could create a solid attachment- without any pivoting. The mounting screws would be out of perpindicular to the rail but maybe not enough to matter.

Note from file: 2 Budweiser can shim thicknesses = about 8 MOA.
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Old 10-22-2021, 04:45 PM
eflyguy

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So not unheard of..
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Old 10-22-2021, 06:30 PM
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Last edited by gas_gunner; 10-22-2021 at 07:02 PM.
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Old 10-22-2021, 07:05 PM
870TC
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Just shimmed a rear rimfire ring. Arizona ice tea cans are a little thicker than regular cans. Used Elmer's (kids) glue stick to stick the layers together. Worked fine so far, about 250 rds
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Old 10-22-2021, 07:16 PM
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It is an expedient way to test out your calculations for what moa is needed IF you have a one piece base/rail. Do not do this with 2 pc bases.
With the light recoil of 22LR you can get away with it....for a bit. But if you do not use all the screw holes with decent support, even an epoxy platform (though a tapered metal shim at each screw would be better), the rail is compromised.
The problem with 'expedient' is that it can work well and long enough to give you confidence. Then the scope and mount fall off........

Last edited by gcrank1; 10-22-2021 at 07:18 PM.
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