Hi Mark, if it's really 'collector' grade you might just want to leave things as they are; frosting won't affect accuracy much if you want to shoot it,(and if it is collector grade you surely won't do to much of that).
Remember that to try to polish the bore using abrasive coated bullets you'll be removing metal. I'd be surprised if you get to the 'mirror' bore stage without noticeable erosion of the lands ?
Would this count as restoration if the gun is currently all original ?
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