My 270win wore a 3x9 4200 and I sighted in about 1.25" high @100yds. At 440 yds my bullet impacted right where the xhair fattened up. Add another inch and you'd be right where you need to be.

Originally Posted by BrentD

I would not buy something that runs on any kind of primer given the possibility of primer shortages and even regulations. In fact, why not buy a flintlock? Really. Rocks aren't going away anytime soon.