My 1949 No4 Mk2 was shooting low so ordered and swapped out .045 blade for a .015. Rifle is now zeroed as it should be; however, the new blade (RFI manufacture) is loose in the dovetail before the screw is tightened. Original sight blade was a nice tight fit, so I am just a little concerned about windage if the screw backs off. What would be a correct fix for this. Contacted my supplier--Springfield Sporters--and all his blades of this height are RFI. Appreciate any suggestions.

Sheppsan
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