Re: Vortex Viper
I use my mil-dot scopes for holdover and can hit a 6" plate everytime out to 400 yards. If you get the tactical knobs you can adjust the scope for the optimum point blank range and just use the center out to about 300 yards depending on caliber. Then you can adjust from there. The mil-dot is also more fun at the range.
That being said, I also have a BDC on my 30-06 deer rifle that I love - it's quick, easy and accurate out to 400 yards (I haven't shot further).
AR's for coyotes
25-06 M70 for coyotes
6.5-06 Remington Custom w/Leupold Mark IV 6.5-20 tactical setup
AR10 for mule deer
6.5-06 M700 for mule deer
338 Lapua Mag M700 for elk