I have a Chinese Rampart gun in about 90 cal made circa 1680. It has a 75" barrel mounted in a crude stock of meranti wood. Matchlock of course. Total weight about 45 pounds and have found copy of old woodcut print showing it balanced across the bearers back while the shooter sights down the piece. The bearer has a finger in one ear while the other hand reaches up to steady the gun. Don't know why I collected it but it sure gets comments at gun shows!