That rate of fire, combined with good marksmanship, turned ordinary soldiers into surprisingly effective long-range killers. The idea that a well-drilled infantryman with a repeating rifle can shape a ...

Cpl. Carlos Santana (left), a scout sniper with 3rd Battalion, 4th Marine Regiment, uses his partner for support during Exercise Cunning Seahorse in 2018. (Cpl. Teagan Fredericks/Marine Corps) A ...