The mines were similar to our Claymore, packed with hundreds of steel pellets and a few pounds of an explosive called C-4. If I recall correctly, the gas-expansion rate of C-4 is 26,000 feet per second. That terrific force, and the hundreds of steel pellets propelled by it, made the explosion of a command-detonated mine equivalent to the simultaneous firing of seventy twelve-gauge shotguns loaded with double-0 buckshot.

