Originally Posted by d4v0s
Nikons spot on calculator on their website has listing for almost every single load available, you pop it in, then zero your scope for what ever range you like, and it tells you where its going to hit out to every yardage you want.
My experience with it is things were only off 1-2 inches at most out to 500 yards. basically tells you 200 yards, top of second ring, 400 yards, bottom of 400 yard ring and so on. Its pretty spot on
Actually no the 55gr BC is .243 its doing about 3000 FPS out of a 5.56 chamber
55 gr Vmax is .255 but in most 5.56 chambers you will loose almost 200 fps
due to longer throat.
At 600 your off almost 20"