Thanks for the quick replys. Interesting...at my local range I make 18 click adjustments at 547 yds and I knock down the plates all day long. With a 1/2 moa dial each click at 500 is 2.5 inches. So that means at 550 I'm dropping 45inches then. Most charts I view show a drop at 500 of 38 inches. Seems mine is dropping a bit more.Later that same day I went shooting again, but with cheap wal-mart loads instead of my sierra hand loads. I made a 4 click adjustment with my range being 300. My bullet should drop around 6 inches, but I ended up being high. It worried me . lol I figured it was because I was originally zeroed with my hand loads so the cheap rounds were going to shoot different and obviously they did. I just didn’t think it would be that much.