actual military issue from US surplus is not corrosive just dirty as hell. you can reload them as blanks but not live cartridges. you will need a blank crimp die. most are crimped primers.
if you do shoot them off (its a LOT of fun) just dont shoot live ammo right afterwards without cleaning. blanks can increase pressure of live rounds to unsafe levels due to the extreme fouling.
cleaning you can just use clp nothing special needed since it is just burnt residue.
you will need a standard A1 or A2 flashider to attach the blank adaptor. without an adaptor it wont cycle the rifle.
"Gun control: The theory that a woman found dead in an alley, raped and strangled with her panty hose, is somehow morally superior to a woman explaining to police how her attacker got that fatal bullet wound." — L. Neil Smith