Hornady SST 7mm .284 139gr Super Shock Tip Bullets 100/Box

The Hornady SST 7mm .284 139 grain bullets deliver controlled expansion and deep penetration for medium to large game hunting. These Super Shock Tip projectiles feature Hornady's proven polymer tip design that initiates expansion while maintaining structural integrity through heavy bone and tissue.

What Makes This Different

The SST (Super Shock Tip) combines a sharp polymer point with Hornady's InterLock ring technology to prevent core-jacket separation. Unlike traditional soft points that can deform in the magazine or fail to expand at lower velocities, the SST maintains its ballistic coefficient while ensuring reliable expansion across a wide velocity range. The secant ogive profile reduces drag for flatter trajectories compared to tangent ogive designs.

Key Features

• 139 grain weight optimized for 7mm cartridges with 1:9.5" to 1:10" twist rates
• Polymer tip initiates expansion at velocities as low as 1,600 fps
• InterLock ring mechanically locks core and jacket together
• Secant ogive boat-tail design for superior ballistic coefficient
• Cannelure provides consistent bullet seating and crimp retention
• Gilding metal jacket resists fouling and ensures smooth feeding
• 100 bullets per box allows for load development and practice sessions

Field testing shows the 139 grain SST maintains 60-70% weight retention while creating wound channels 2-3 times bullet diameter. The polymer tip fragments upon impact, creating additional wound trauma while the bullet core penetrates 18-24 inches in ballistic gelatin. This performance profile makes it effective on deer, elk, and similar-sized game at ranges from 50 to 400 yards when loaded to appropriate velocities.

Technical Specs

• Caliber: 7mm (.284 diameter)
• Weight: 139 grains
• Bullet Type: Super Shock Tip (SST) with polymer tip
• Jacket: Gilding metal with InterLock ring
• Profile: Secant ogive boat-tail
• Recommended twist rate: 1:9.5" to 1:10"
• Quantity: 100 bullets per box
• Manufacturer: Hornady Manufacturing Company, Nebraska USA

The SST's consistent performance across different powder charges and seating depths simplifies load development for handloaders. Professional guides and hunters rely on this bullet design for its predictable expansion characteristics and deep penetration on heavy-boned game.