tracers are barrel melters. the glowy bits burn hot enough to melt steel. they frequently put nice big pits in machine gun barrels. the military doesnt care about that though because they got an everlasting supply of our money to buy new ones.
tracers arent legal in all states and your going to incur hazmat shipping fees they are corrosive so treat it like you just fired corrosive primed cases
"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