I have a hard time buying into the “advanced marksmanship” sales pitch. In my experience there’s no such thing, there’s simply flawless application of the fundamentals. I tell students there’s no fundamentally no difference between what you do at 100 yards and 1000 yards. Issues arise when you’re unable to properly apply the basics.
So next time you go shooting take the time to slow down, work on the fundamentals like trigger control, sight alignment, and natural point of aim.
Also, know how to run your chosen platform. There are subtle differences between a semi automatic precision rifle and a bolt action rifle. Work with someone who can teach you how to cheat with your particular weapon system.