Whilst shooting at 10 yards re-Zero your rifle's elevation turret and remember how many clicks it took - when you've finished shooting at 10 yards, just turn the top turret down the number of clicks you moved it up.
The out of focus issue is down to what distance your scope is parallaxed to - I assume you don't have a parallax adjustable scope (PA). Lowering the magnification will help - if you let us know the make/model of scope you'll probably get some scope specific advice.
Hope that helped
All the best
Bri