Jeff Heeg osoh
Well-Known Member
It takes a 550 grain bullet 6 seconds to reach two miles on the average for impact. That is using the common setups seen in the long distance shooting events. We as spotters will usually count down in our head after the shot in order to have a better sense of a impact off target or on for making corrections.Bullet TOF plus time for sound to get back to you, so maybe 6 sec bullet TOF + 18 sec for sound travel time
JH