If you are comfortable and are able to repeat your cheek weld/sight picture every time you shoulder the rifle, you should be good. Precision comes by doing exactly the same thing each time. There are rules of thumb, and the other posters are all making good points and suggestions, however there are so many variables that it may be that what works well for you is different than what works for most other folks. At the range or when hunting, if your results are consistent and good, you are probably ok.
For example, for me, my scopes are much more to the rear of my rifle than most other shooters prefer. It works for me.