Wow!!!! 100 yards! How does that happen? I have a Deerfield and when properly sighted in at 50 yards, a move to the 100 yard targets see the bullets hitting the dirt 30 feet in front of the target and at least 5 feet below them.
For shooting at 100 yards, one must be using quite a bit of hold over. I would certainly agree that at 50 yards or less, the rifle is awesome but as has been previously pointed out in this thread, one must live within the limitations of the cartridge. I have a 450 Marlin as well, and it is in a totally different category wrt to power and trajectory. Still a short range proposition, but in a very different ball game. At the end of the day, a .44mag rifle appropriately applied at short range is an awesome choice for big game.