SNIPER 101 Part 82 - RANGING ENEMY FIRE - Crack Thump Method

Crack / Thump Method: The speed of sound is approximately 340 m/s at ATD ATM while the bullets velocity typically starts off 2 to 3 times faster than this. This results is a sound delay (“crack-bang“) between the two’s arrival at the target. The enemy’s supersonic bullets produce a sonic boom, creating a “crack“ sound as they pass by. The idea is, that if the enemy bullet’s TOF is known, his range can be roughly estimated by measuring the delay between the bullet’s passing and the sound of the rifle sh