Winchester SUP308 Super Suppressed 308 Win 168gr OTM 20rd Box

The Winchester SUP308 Super Suppressed ammunition delivers subsonic performance specifically engineered for suppressed rifle systems. This 308 Winchester load features a 168-grain Open Tip Match projectile optimized to cycle reliably while maintaining accuracy below the sound barrier.

What Makes This Different

Unlike standard 308 Winchester ammunition that produces supersonic crack even through suppressors, the SUP308 stays subsonic at 1,020 fps muzzle velocity. The powder charge generates consistent pressures for reliable semi-automatic cycling while producing significantly reduced noise signature. Winchester's proprietary powder blend burns completely within 16-24 inch barrels, minimizing unburned powder residue that can affect suppressor performance over extended shooting sessions.

Key Features

• 168-grain Open Tip Match bullet for enhanced accuracy and consistent expansion
• Subsonic velocity of 1,020 fps eliminates supersonic crack through suppressors
• Optimized powder charge ensures reliable cycling in semi-automatic rifles
• Clean-burning powder reduces suppressor fouling and maintenance frequency
• Brass cases suitable for reloading with standard 308 Winchester dies
• 20 rounds per box, 10 boxes per case (200 total rounds)
• Compatible with all 308 Winchester and 7.62x51 NATO chamber specifications

This ammunition performs consistently across bolt-action and semi-automatic platforms including AR-10 variants, M1A rifles, and precision bolt guns. The 168-grain OTM bullet maintains stability and accuracy at subsonic velocities, delivering sub-MOA performance in quality rifle systems. Temperature stability ensures consistent velocities from 20°F to 120°F operating conditions.

Technical Specs

• Caliber: 308 Winchester/7.62x51 NATO
• Bullet Weight: 168 grains
• Bullet Type: Open Tip Match (OTM)
• Muzzle Velocity: 1,020 fps (24-inch barrel)
• Muzzle Energy: 388 ft-lbs
• Case Material: Reloadable brass
• Primer: Non-corrosive Boxer
• Packaging: 20 rounds per box, 10 boxes per case
• Manufacturer: Winchester Ammunition

The SUP308 represents Winchester's commitment to suppressor-optimized ammunition that doesn't compromise on accuracy or reliability. Professional shooters and enthusiasts gain the tactical advantage of reduced noise signature without sacrificing the performance standards expected from match-grade ammunition.