The ATEC is ok but not my favorite. I would put a Bushnell Elite 4200 on it. They have a good warante and let in 95% of available light, to get any better than that you will have to go to a $800-$1000 scope. The 4200 is $400 at cabelas but you can get them cheaper on other internet sights. They are very close to the Nikons and they have rainguard. You can fog them up with your breath and still see through them to shoot. I have the 4200 in 1.5-6x36 on my 7x57 and I am going to put a 4200 2.5-10x40 on my .223.