According to the numbers that Hornady comes out with, the 162 gr. A-Max is one sleek number. Sure, the ones I have are real slick, but the 168 gr. Sierra MKs I have are also sleek, but come in at a much, much lower BC. Also, when calculating the downrange speed, the A-Max really stretchs the gap. So, will the MK perform well enough for a longer shot? What is the "ideal" impact speed for a A-Max & MK?