I've tried two different minnies out of my Green Mountain Rifle in .58 caliber and so far have not been able to get what I term "hunting accuracy." While they are a lot of fun to shoot, I just would not feel right taking a long shot with them. The best of the two were some 315 grain Warren Minnies. They actually did pretty good. The monster minnie from Black Jack Hill, if the critter was over 50 yards away, there was no telling where I would have hit them with that brick of lead, aiming for the shoulder.

Some of the military style rifles with .577 bore do real accurate shooting with minnies so I have been told. I got to shoot a Springfield Rifle once with a minnie and 70 grains of powder. Out to 100 yards a man would have been in serious trouble with that rifle. The neat part was you would have aimed for his mid section to hit him in the chest. Maybe the sights were messed up. The owner of the rifle when shooting would tell you to aim one foot low.... a lot of fun to shoot though.