Why would you want to try to shoot such a huge, heavy conical, unless you were shooting Elephants, or Rhinos??
A .62 caliber Round Ball weighs in at about 325 grains, and that is more than 3/4 oz. of lead. Even at slow speed, its passes through about all ungulates( deer family), and is a real freight train when it hits large heavy boned animals like Bear. A friend shot a wild boar with a .62 cal. Rifle, in the chest about 20 feet from him, and the ball was recovered under the skin on his back, opposite hip, having penetrated the entire length of the boar( about 3 feet) taking the lungs, heart, liver, kidney, Spleen, and some of the intestines before penetrating the large muscles on the butt. The slug retained most of its weight, and flattened out substantially.
What more would you want for any game on the N. American Continent?
Whose going to volunteer the shoulder to shoot a heavy conical?? Unless you use the technique I describe in my article , "Controlling Heavy Recoil" posted under " Member Resources", you are going to bruise your arm or shoulder substantially shooting such a heavy slug, no matter how much(or how little) powder you put behind it. Val Forgett used a beefed up .58 caliber rifle, using conicals, in Africa to take the Big game, with loads as heavy as 200 grains of power. These are massive charges and heavy recoil. There is a company on the West Coast that makes these cannons still, but installs a muzzle brake to help keep down the muzzle rise in recoil. If you find their site, they discuss conicals, weights, and powder charges that their guns can withstand.
