Rule book
IMSSU Rules 2017
IMSSU Rules 2013
IMSSU Minutes 2012
RULE CHANGES – IMSSU Minutes 2010
IMSSU OFFICIAL SPORTING RULES 2009 AMENDED 2010IMSSU OFFICIAL SPORTING RULES 2009 AMENDED 2010 (pdf)
NRA rifle rules here NRA pistol rules here
ISSF rules - airgun specifications