[Gandalf_The_Gray]

We (everybody who's anybody) saw this on "Myth Busters". They used all sorts of weapons to shoot open all kinds of locks ~ with virtually no success.

That's because they used standard, over the counter ammunition. Door breaching rounds are made with a sintered slug of powdered metal and fired at point blank range from a 12 ga. shotgun. The slug disintegrates on impact and expends all it's kinetic energy on the lock. The shotgun is usually fitted with a tubular "stand off" device which allows the shooter to in effect, put the muzzle right on the lock.

Regards,
GtG

PS If the lock doesn't fall off, use a bigger gun! A .50BMG round will go through 2" of mild steel...

[muawiyah]

BTW, go to the bottom and start scrolling back up and you'll find a picture that's supposedly of the door they were shooting.

It looks like their breaching round missed the target!