A refrigerator appliance is provided, as provided herein, include a cabinet, a door, and an ice bin. The ice bin may be removably received within a chilled chamber and include a bin body and a non-vertical auger. The bin body may define a storage volume to receive ice therein and a dispenser opening in fluid communication with the storage volume. The non-vertical auger may include a rotation shaft extending along a rotation axis and an auger blade coiled about the rotation shaft. The auger blade may define an expanding radius along the rotation axis from a first blade end to a second blade end.