There is currently no means available to ship a handgun to yourself in another state. It is now against UPS company policy, FEDEX company policy, and against Federal Regulations to send it US Post Office.
Your only option, without violating the terms of service of UPS, FEDEX, or US Post Office Federal Regulations is to just take the gun with you.
UPS:
http://www.ups.com/media/en/terms_service_us.pdf
Electronic page 8:
3.6 Firearms and Ammunition
UPS accepts packages containing firearms (as defined by Title 18, Chapter 44, and Title 26,
Chapter 53 of the United States Code)
only (a)
between licensed importers, licensed
manufacturers, licensed dealers, and licensed collectors (as defined in Title 18, Chapter 44 of the
United States Code), and government agencies; and (b) where not otherwise prohibited by
federal, state, or local law
from (i) an individual to a licensed importer, licensed manufacturer,
licensed dealer or licensed collector;
and (ii) from a licensed importer, licensed manufacturer,
licensed dealer, or licensed collector to an individual.
FEDEX Express:
http://www.fedex.com/us/service-guide/terms/express-ground/index.html
FedEx Express will transport and deliver firearms as defined by the United States Gun Control Act of 1968, between areas served in the U.S.,
but only between:
Licensed importers; licensed manufacturers; licensed dealers; licensed collectors; law enforcement agencies of the U.S. or any department or agency thereof; and law enforcement agencies of any state or any department, agency or political subdivisions thereof; or
Where not prohibited by local, state and federal law, from individuals
to licensed importers, licensed manufacturers or licensed dealers (and return of same).
FEDEX Ground:
http://www.fedex.com/us/service-guide/terms/express-ground/index.html
FedEx Ground will transport and deliver firearms (excluding handguns) as defined by the United States Gun Control Act of 1968, between areas served in the U.S., but
only between:
Licensed importers; licensed manufacturers; licensed dealers; licensed collectors; law enforcement agencies of the U.S. or any department or agency thereof; and law enforcement agencies of any state or any department, agency or political subdivisions thereof; or
Where not prohibited by local, state and federal law,
from individuals to licensed importers, licensed manufacturers or licensed dealers (and return of same).