I'm not sure how someone could get lucky EVERY year so I am gonna say that there are some other factors contributing to the big buck kills than simply being lucky.

Of course we all know someone who is a "one time wonder" who shoots a monster buck even though they have never had much success at any other time.

But I believe LOCATION is by far the leading factor in whether someone is going to have a decent chance at killing a big buck or not.

Now if someone seems to shoot many more big bucks than other hunters in the same area...I would say that person probably has developed some skills as well as dedication that is setting them apart from the rest.