Mississippi Code Title 33. Military Affairs § 33-13-429

(1) Under such regulations as the Governor may prescribe, all rights, privileges, and property affected by an executed part of a court-martial sentence which has been set aside or disapproved, except an executed dismissal or discharge, shall be restored unless a new trial or rehearing is ordered and such executed part is included in a sentence imposed upon a new trial or hearing.

(2) If a previously executed sentence of dishonorable discharge is not imposed on a new trial, the Governor shall substitute therefor a form of discharge authorized for administrative issuance unless the accused is to serve out the remainder of his enlistment.

(3) If a previously executed sentence of dismissal is not imposed on a new trial, the Governor shall substitute therefor a form of discharge authorized for administrative issue, and a commissioned officer dismissed by that sentence may be reappointed by the Governor alone to such commissioned grade and with such rank as in the opinion of the Governor that former officer would have attained had he not been dismissed. The reappointment of such former officer may be made if a position vacancy is available under applicable table of organization. All the time between the dismissal and reappointment shall be considered as service for all purposes.