Ah, yes.......... But how will you zero it given that mathematically the range of foresight blades is too HIGH now (remember foresight into the error, backsight out of the error etc). And even the 1952 foresight blocks (marked 1H) are higher............. as is the Sten foresight blade +.090"

Keep us informed TB, it's a great thought provoking project. I wish I'd had this for a student project at Shrivenham. Or certainly read the discussion papers.................
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