Dude. If you're shooting your rifle fast and hard enough to catch it on fire - you're doing something wrong.
Pardon me while I slip into NCO mode:
"Aim that weapon, and slow down you yahoo redneck. It is a rifle, not your penis, you are on the range, not in back on the block with buddies, I am your corporal not your girlfriend, you are impressing nobody and you are not making friends. And if you turn your weapon the wrong way on the range again I will tear off your head and defecate down your neck."
Pardon me while I slip into NCO mode:
"Aim that weapon, and slow down you yahoo redneck. It is a rifle, not your penis, you are on the range, not in back on the block with buddies, I am your corporal not your girlfriend, you are impressing nobody and you are not making friends. And if you turn your weapon the wrong way on the range again I will tear off your head and defecate down your neck."