the reason i am so tied up on velocity is that i have had a huge deal of practice with two loads. the one above and one other 168 grain load. i have shot in winds up to 45 mph out to 500 yards using only a bdc reticle and i can reach even further with my dials. up to 20 mph out to 500 yards i dont even need to take a wind reading to get a fist round hit. considering not more then a few years ago wind was my kryptonite, this is a big thing for me. i know a 178 amax at 2790 like the back of my hand