Actually, over oiling traps dirt. If in an actual firefight and
you are outnumbered, several safety measure go out the window for
me.( if using m16a) I got a jam and I don't yell IA, I fire a round
into the air and move away from my last firing position. That shot
fired should help clear the chamber, if it doesn't, you should get
a chamber explosion which is very bad. At least, if you are still
alive, you can get out your ET tool and bayonet to close and fight
instead of being caught pants down trying to clear the jam.