Ponsness 12 Gauge Progressive Reloading Press. For your consideration I have a Ponsness Warren 800B Size-o-matic progressive reloading press set up for 12ga. This press needs new bushings but still operates. More importantly Ponsness Warren still supports this press with parts. I do have some extras like powder and shot bushings as well as the primer feed that goes with it. I'm getting ready to move and need to lighten my load.