In a 308 the charge [needed to reach the threshold of short brass life] gets higher, very slightly as the bullet is seated longer, until it gets jammed into the lands, and then the threshold drops ~ 2 grains.
Jammed into that lands has the classic advantage of better accuracy and the disadvantage of a pressure spike and unfired rounds when ejected may leave the bullet stuck in the lands and spill powder all over the chamber and action. The following cases fired will have imprints of powder sticks. This is called "leprosy" and having that on your cases is the mark of shame. If you jam into the lands on hunting trips, you should take a cleaning rod.
Flirting with shame, I have worked up some lengths for bullets and my individual guns, where the bullet is "semi-jammed into the lands". This length gets the pressure spike and accuracy boost, but can be extracted without leaving the bullet in the throat.