The Dillon Casefeed Plate is the grey disc for the Dillon electric casefeeder that sorts the cartridge cases. It is an essential component of the casefeed assembly. There are five different casefeed plates to cover all calibres: Small pistol for handgun calibres like 9mm, .38 Spl etc. Small rifle for rifle calibres like .223 Rem etc. Large pistol for handgun calibres like .45 ACP, .44 mag etc. Large rifle for rifle calibres like .308 Win, .30-06 etc. Magnum rifle for belted magnum rifle calibres, like .375 H&H etc. Please contact us if you are in doubt about the size you require!