G.T.,
This is what I have done: crazy glue a piece of thin bronze shim stock to the bottom of the sight. Polish down the shim stock with 400 grit sand paper as needed (if needed) for a tight fit in the dovetail. The advantage is that the fix is removable with no damage to the sight or barrel.
I can send you a piece of .008 bronze shim stock.
KFS
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