Some 20 years ago ,I made friends with Bill Cantrell of Seymour, MO. He was making muzzle loading barrels and I think these were used on the guns. I remember the 62 caliber barrels he was sending out.
He was send a video of the gun being used in Africa.I think the person shot 5 major animals using it and all were one shot kills. He rolled a zebra when he shot it. The guide wanted to try it and he shot a duck at 250 yards on a lake there.
He stated it shot one inch high at 100,150, and 200 yards.
