Objective: The goal of this study was to quantify shooter performance relative to subtle variations in recoil energy.
Background: Marksmanship performance remains undefined for subtle distinctions in weapon recoil energy across common small-arms platforms.
Method: Weapons were customized using multiple components and ammunition types.
Objective: The purpose was to determine if Soldier rucksack load, marching distance, and average heart rate (HR) during shooting affect the probability of hitting the target.
Background: Infantry Soldiers routinely carry heavy rucksack loads and are expected to engage enemy targets should a threat arise.
Method: Twelve male Soldiers performed two 11.