Actually I have no idea as to why? Until this year I hunted in NW Mo where it was common to take a 400 yd shot at a deer, now where I hunt it is rare to take a shot more than 200 yds....although I blew that figure away with a shot at a doe this year off the top of the escort, it was a good vitals shot and an instant kill, but I will never take a deer at that distance again...in fact I am pretty ashamed I did this time. Other than that my family hunts with a lot of 7mm mags, so mine fits in. I also like the idea that I can take it to Colorado and hunt whatever I choose without having to worry about being underpowered.