In my experience, if a buck isnt in at least the 140" to 150" class by the age of 4.5 then most likely he will never be a true giant. I dont use the word trophy because a trophy is in the eye of the beholder.Ive had deer pushing 130" as 2.5 year olds, and on the other hand I have harvested two deer that were fully mature that field dressed over 250lbs but only scored in the 130"s. If your managing your land so well that your considering culling 130" deer then my hats off to you, because alot of people would be just tickled to shoot a deer of that caliber.