Army Reserve Staff Sgt. Shane Seleznoff, a Stryker vehicle commander and native of Forney, Texas, assigned to 1st Reconnaissance Platoon, 360th Chemical Company, 468th Chemical Battalion, 209th Regional Support Group, 76th Operational Response Command, straddles a portal on a Stryker vehicle as he loads ammunition into a M2 .50 caliber machine-gun before heading downrange to qualify on crew-served platform gunnery as part of Operation Gauntlet at Fort Riley, Kansas, April 2. More than 450 Army Reserve Soldiers from around the country are participating in the three-week gunnery exercise to hone crucial gunnery skills and increase battlefield lethality. (Official U.S. Army Reserve photo by Sgt. 1st Class Brent C. Powell)