Sorry it took a while to look up the numbers. I found my fils reciept for this RBH Bisley 1982.
Cyl gap .006, cyl pin shroud gap .002+, cyl/breach face .0015, cyl throats .4105-.411 slugged, barrel bore .399-.4105 slugged, cyl pin and cyl wear I can feel it but not really see it. The cyl locking lug looks worn but the cyl stops appear clean and crisp. A question for you reflex264 how do I tell what to replace and can I order upsized parts to alieviate the worn out parts? Hope I didn't leave anything out if so let me know.