Read that "Charlie-Lima" When in the USMC MOS 2112- we used WD-40 and the crappy smelling GI issue Bore Cleaner. For the bores packed with cosmoline on the M-1 and M-14 rifles, we used kerosene oudoors)- to flush that stuff out- sorta like RIG and Vaseline on steroids- never had a rusty bore from any weapon stowed with that in the bore--RWTF


"The field is the touchstone of the man"..