[msf92497]

I wonder how many pounds of C4 and ballbearings it would take to detroy a bus. I have to think that 150 pounds is enough to do a crap load of damage.

[msf92497]

detroy SB destroy. Oops.

[CygnusXI]

Correct me if Im wrong.. but cant a brick size (1lb or so) totally pulverize a bus/truck, large vehicle?

WTF 150lbs?!

[TLI]

2 and 500. Or 4 and 1000. 4 / 1000 and you gotta pretty fair sieve.

[RightWhale]

A pound of any explosive is a lot. Depends how it is used.

[Texas WOP]

I could make a quarter pound of C4 slice through a standard steel building I beam. C4 has an explosive expansion rate greater than 4000 fps. It wouldn't take much for a bus. The bomber's own body becomes shrapnel.

[El Gato]

I wonder how many pounds of C4 and ballbearings it would take to detroy a bus.

One or two pounds would do the job. A bit more if you are setting it off from under the bus, rather than inside, and assuming your object is to kill the passengers, not shred the engine and transmission.

Consider that a Claymore mine only weighs about 3.5 pounds and much of that weight is the "ball bearings" (about 700 of them) and the plastic case.

[steveo]

About 20 years ago, there *was* a gun shop near me, mom and pop operation. One morning about 4AM some morons thought they would blow off the iron door to this place and pick up some freebie firearms. I don't know how much plastic they used, but it blew of a corner of the building, sent the door across the street, and destroyed everything in the place, knocked everyone out of bed and was heard 8 to 10 miles away.

The percussion was about the same as a ground lighting strike would be from the same distance, about 1500 feet.