Damascus,

I would never advise someone to re-proof a gun unless legally required to do so. If it is two or three thou in proof, it is in proof.

Re-proof is a strain on a gun, can potentially ruin it and does nothing to help it. I think your gun maker gave you sound advice. He saved you unnecessary expense and risk to the gun for no tangible benefit.

Your gun will still be two thou in proof when you die, as long as you don't get it rusty and lap out any more.

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