Improvised shims - what is best material?

[Metman2]

If I need to cut an improvised shim, from a piece of soft metal, which metal will give less trouble - due to bi-metallic contact - aluminum can, .22LR shell, or ???
Would the combination Aluminum-on-Steel might be problematic in the long term?

 

[gosse]

I bought shimstock from brownell's to solve all my shims issues:
h ttp://www.brownells.com/gunsmith-tools-supplies/sight-scope-installation-tools/scope-shims/kit-no-af-12-steel-shim-stock-prod25974.aspx

 

[guntech]

A little grease on both sides of what ever shim material you use will prevent any corrosion you would expect. I doubt your set up will experience much time immersed in salt water... hobby stores sell brass in various thicknesses...

 

[c-fbmi]

I've used alum with no long term bad effects.

 

[hunter5425]

I have bought cheap feeler gauges from Princess auto and used them for shims, with the added bonus you can adjust the thickness to what you need.

 

[sunray]

"...hobby stores sell brass..." So does Crappy Tire and any auto body work supply shop.

 

[kennymo]

Aluminum beer can works great. They're a little thinner than a pop can, slice one lengthwise and unroll it, cut whatever size squares are required.
Plus restocking the shop is a blast...