Clyde,
Barrel: 0.50 Caliber, Knight DISC purchased as scrap (bolt area cut off, broken tap in one sight hole, etc) $45. Bore excellent! Approximately a 1:28 twist.
Ammo: 0.490 Round ball, 0.022 Bull denim patches, 0.40 grains of Goex FFFg.
Side Hammer like underhammer but left side, my...