Well still not a whole lot of woodworking yet. I spent two days removing old paint and loose rust with a needler and wire wheel. After that I coated the surface with ospho to convert the rust to clean metal. Then I put the cannon in a mock up cradle and took some more measurements. Finally I hung the cannon up for primer and paint.
Cleaned up and putting ospho on.
Fresh coat of ospho.
Cured ospho and placed in mock up cradle.
Hung up and ready for primer!