. The M2010 Enhanced Sniper Rifle differs from 7.62×51mm NATO chambered M24 Sniper Weapon System in that M2010 sniper weapons are: • Chambered to .300 Winchester Magnum. • Barreled to a long, 1 in
twist rate (using Obermeyer 5-R rifling) hammer-forged free floating barrel. • Fitted with a new chassis (stock) assembly that maximizes the amount of physical adjustments for the sniper to provide a better user customized fit. The chassis has a right folding buttstock that shortens the system for easier transport and better concealment during movement and accommodates the mounting of accessories via removable Mil Std 1913
Picatinny Rails and accessory cables via routing channels. • Fitted with a five-round detachable
box magazine. • Fitted with a quick-attachable/detachable
Advanced Armament Corporation (AAC) sound suppressor with
muzzle brake to reduce recoil and jump and audible and visible signature with an available thermal sleeve that reduces mirage effect on heated suppressors. The Titan-QD Fast-Attach suppressor eliminates 98 percent of muzzle flash, 60 percent of recoil, and reduces sound by 32 decibels. • Fitted with a Leupold Mark 4 6.5–20×50mm ER/T M5A2 Front Focal variable power
telescopic sight featuring a 34 mm tube diameter, first focal plane Horus Vision H-58 grid system range estimation reticle and Bullet Drop Compensation, fielded with the AN/PVS-29 or AN/PVS-30 Clip-on Sniper Night Sight. • The application of advanced corrosion resistant coatings throughout the system. According to Remington Arms, each rifle is tested to meet (and typically exceeds) the requirement to fire ≤ 1
moa/0.3
mil (less than a 2-inch shot group at ) before being released for fielding.
Ammunition In 2009, the U.S. government purchased
MK 248 MOD 1 .300 Winchester Magnum match-grade ammunition for use in .300 Winchester Magnum sniper rifles like the U.S. Navy Mk13 SWS or reconfigured M24 SWSs. This ammunition was developed as a .300 Winchester Magnum Match Product Improvement (PIP) and uses the 14.26 g (220 gr) Sierra MatchKing Hollow Point Boat Tail (HPBT)
very-low-drag bullet fired at a nominal muzzle velocity of ± . According to the U.S. Navy, this ammunition should increase the maximum effective range of .300 Winchester Magnum sniper rifle systems to , decrease wind deflection on bullets in flight, and use a reduced muzzle flash propellant that remains temperature stable across an operational temperature range of . According to JBM Ballistics, using the 0.310 G7 ballistic coefficient provided by Bryan Litz, and a Weapon Employment Zone (WEZ) analysis of the XM2010 rifle with various .300 Winchester Magnum ammunition types by Bryan Litz, the MK 248 MOD 1 .300 Winchester Magnum cartridge, when fired at its nominal muzzle velocity of , should have supersonic range under
International Standard Atmosphere conditions at sea level (
air density ρ = 1.225 kg/m3). In January 2014, the U.S. Department of Defense annual testing report found that the older A191 or MK 248 Mod 0 .300 Winchester Magnum service round loaded with aerodynamically less efficient 190 gr (12.32 g) Sierra MatchKing Hollow Point Boat Tail (HPBT) bullets (0.270 G7 ballistic coefficient provided by Bryan Litz) fired from the XM2010 demonstrated adequate performance and lethality. Live fire tests were conducted in March 2013 against
ballistics gelatin, light material barriers, and other targets to determine the projectile's ability to perforate targets. This was the first time the Pentagon's Director, Operational Test and Evaluation (DOT&E) tested the round, which can hit targets out to . ==Civilian use==