Breathe, relax, aim, stop, squeeze: BRASS. The acronym remains foundational to Marine Corps marksmanship, and from the first minutes of class work, snapping-in on barrels, and finally, trigger time on alpha, bravo, delta and B-modified targets on cheesecloth backers, BRASS fundamentals were drilled into our brain-housing groups. While I began shooting at a young age and was blessed to be born to two crack shots, ultimately, Marine Corps marksmanship training and great shooting...