A seed meter assembly for a seeding machine. The seed meter assembly has a metering member mounted for rotation about a meter axis and driven to rotate in a direction of travel, the metering member having an inner surface configured to receive seeds and an outer surface and apertures passing through the metering member between the inner surface and the outer surface at a radial distance from the meter axis. The seed meter assembly also has a seed delivery mechanism configured to discharge the seeds from the seeding machine, and a loader including at least one non-cylindrical loader surface movable into and out of a position in which the loader surface is disposed at the radial distance adjacent one of the apertures.
