Can you fire a 38 caliber bullet in a 357 magnum repeating Uberti model 1873 Winchester rifle?

If your question is reffering to the .38 special cartridge then yes it should be able to handle this cartridge in a rifle chambered for .357 Magnum.Be aware that firing a shorter cartridge will cause a build up lead or powder fouling in the chamber that has been cut for the longer cartridge and may cause chambering difficulties of the longer round after many shots of the shorter cartridge.