Re: nikon bdc
I use a 2.5-10 on one of my .308 rifles and it has worked very well. Once you get the magnification power for your load worked out it's pretty reliable. My .308 loads work on 7x and I have shot mine out to 600 and can pretty regularly make 1st shot hits at 18" steel plates. The circles make holdover for wind or movement difficult as there are no reference lines. it's a good system and works well, the B&C, TDS, or the new BR reticle are better but they are also double, triple or quadruple the price.