Well when the difference between a go and no go is .004" you can see how the tolerances will stack.
Lets just say you did make them to +/-.001 then you either have a difference of .002" or .006" between go and no go.
That's why I said .0002" because at the worst you have .0005" variance from your basic dimension
Originally Posted by ar15barrels
The above statement i consider a term of endearment
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