Originally Posted by
geargnasher
Incorrect. The number of turns per distance traveled is variable because it is a function of TIME. If a boolit makes one turn in nine inches after leaving the muzzle, and it hits a target downrange going half the muzzle speed, the boolit will still be rotating almost the same number of turns per minute as when it left the muzzle, but going half the distance in the same amount of time, so it will turn almost one revolution in 4.5 inches as it enters the target.
Take a cordless drill with a bit in it. Hold the trigger wide open and jam the bit into a board as fast as you can, then do it normally. Note the effect.
Gear