I built this Cape gun a few years ago on a Pedersoli 10 bore percussion gun. I shortened the barrels to 26", sleeved a .54 calibre rifle barrel into the left barrel, and mounted rifle sights on it. This morning, I was sitting up in my tree stand when this coyote came trotting by. I took him at 55 yards with the rifle barrel. Robert Ruark said "Use Enough Gun". Believe me, a 335 grain, .54 calibre, hollow point, maxi-ball is MORE than enough gun for a coyote. 55 yards was twice the useable distance for the 1 1/2 ounces of plated "00" buckshot that I load in the right barrel.