What is the least amount of powder you would shoot a deer with in .50 calibre muzzle loader with a 200 grain Bullet ? I am trying to decrease the amount of recoil as much as possible in hopes of getting my 8 year old a shot at a deer next weekend ( 50 yards and under). I am going to shoot it this week but have never used less than 100 grains of powder. I am making a target to shoot at that should help measure the penetration of the bullet. Any one have any experience with this ?