I purchased this from an estate sale so I do not have an accurate round count. The bore is in very good shape and it is obvious that the gun has not been over shot. I have shot 16 factory rounds thru it (180gr) - factory shoots .75" gorups. I also shot 7 different 3 shot groups thru it working on a load and found 2 loads that shoot .65". If I do not sell it, I will probably try a different powder as I am confident I could find a load that will shoot .5" or better.