Hi John
The nose of the bullet is smaller than the butt, and the Butt is flat whereas the nose is tapered, if the nose is facing downward is falls into a cut out portion of the floor and lays down onto its side and is then turned upright by a ramp and then dropped into a feeder tube through a hole in the floor. If the Butt of the bullet is facing downward, it will pass by the hole in the floor and remain in the correct upright position.
Clear as a bell ,,, Right ?
Good Shooting
Lindy