Thanks much for all the kind & very good advice in several dimensions/directions. With the additional info re possible ammo and no sign of elephants in our SoCal backyard... I do think I'll pause and further consider leaving the chambering as-is in x68. Ammo 'availability though even not Walmart,,. a new dimension! I do now have several interested buyers despite even 'not for sale'.
No plans to do anything more with it until this Covid mess at least under control! To you who did experss interest, I have your names!
Again, thanks for the "thoughput!"
Best & Happy New Year!
John
