Get you a very big piece of cardboard( such as a refrigirator box or big screen tv ) set it up at fifty yards, bore site, and adjust. If you hunt take the time to go into the woods in a safe place where the bullet can safely stop and zero. Don't trust theoretical equations. I don't ever predict I can make a two hundred yard shot myself because I'm not that confident. I'm a stalker just a little bit. Not to mention my 270. Practice is the key. Know your rifle.
