Personal service of the summons out of State shall be equivalent to publication and deposit in the post office, and when such service is had no affidavit, as provided for in Section 15-9-710, order for publication or deposit in the post office shall be necessary. Such personal service so made shall be complete and final on the day of the date of the personal service of the summons as fully as if such personal service had been made under the provisions of statutes providing personal service within the State.
S.C. Code § 15-9-750