This is from the CMP website.
Marksmanship or other Firearms Related Activity: You must provide proof of participation in a marksmanship related activity or otherwise show familiarity with the safe handling of firearms and range procedures. Your marksmanship related activity does not have to be with highpower rifles; it can be with smallbore rifles, pistols, air guns or shotguns. Proof of marksmanship participation can be provided by documenting any of the following:
Current or past military service.
Current or past law enforcement service
Participation in a rifle, pistol, air gun or shotgun competition (provide copy of results bulletin).
Completion of a marksmanship clinic that included live fire training (provide a copy of the certificate of completion or a statement from the instructor).
Distinguished, Instructor, or Coach status. - Concealed Carry License.
Firearms Owner Identification Cards that included live fire training. - FFL or C&R license.
Completion of a Hunter Safety Course that included live fire training.
Certification from range or club official or law enforcement officer witnessing shooting activity. A form for use in completing and certifying your range firing can be downloaded from the CMP web site at