Missile speed

Dr. Allen may have actually caught himself at the very end. The instant the
ultra-compact missile flew from the twenty-millimeter-wide barrel it
reached maximum velocity, slamming into the elderly physician’s chest at a
speed of fifteen hundred miles per hour before exploding. The detonation
was the work of an impact fuse. A half ounce of explosive gel blew open
the hospital director’s chest and his left shoulder, killing him
instantaneously.

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