The Hornady Superformance 7mm Remington Magnum 139 Grain SST delivers a genuine velocity boost of up to 200 fps over conventional ammunition — without added pressure, recoil, or fouling — making it one of the most advanced hunting rounds available today.
- Blazing 3,240 fps muzzle velocity for flat trajectories and extended range performance
- 139 Grain SST bullet engineered for rapid, controlled expansion on impact
- Superformance propellant technology eliminates temperature sensitivity and excess fouling
- No increase in chamber pressure or muzzle blast compared to standard loads
- Delivers superior retained energy and devastating terminal performance on big game
- Conveniently packaged in a 20-round box for field and range use
Who This Is For
This load is ideal for serious big-game hunters who demand maximum downrange performance from their 7mm Remington Magnum rifle. Whether you're pursuing elk, mule deer, or other large North American game at extended distances, the Hornady Superformance SST gives you the velocity, accuracy, and terminal energy needed for clean, ethical kills — without the punishing recoil or barrel wear associated with magnum-level pressure spikes.
Specifications
| Brand | Hornady |
|---|---|
| Caliber | 7mm Remington Magnum |
| Bullet Weight | 139 Grain |
| Bullet Type | SST (Super Shock Tip) |
| Muzzle Velocity | 3,240 fps |
| Muzzle Energy | ~3,243 ft-lbs |
| Ballistic Coefficient (G1) | 0.486 |
| Propellant Technology | Superformance |
| Rounds Per Box | 20 |
| Casing Material | Brass |
| Primer Type | Boxer |
| Reloadable | Yes |
Frequently Asked Questions
What makes the SST bullet different from standard soft-point hunting bullets?
The SST (Super Shock Tip) features a polymer tip that initiates immediate, reliable expansion upon impact across a wide range of velocities. The InterLock ring mechanically bonds the jacket and core to prevent separation, while the tapered jacket controls expansion for maximum weight retention and energy transfer — resulting in devastating wound channels and quick, humane kills on big game.
Will Hornady Superformance ammunition work in my standard 7mm Rem Mag rifle?
Yes. Hornady Superformance ammunition is loaded to SAAMI-compliant pressure specifications and is safe to use in any standard 7mm Remington Magnum chambered rifle in good working condition. The velocity gains come from advanced progressive-burning propellants rather than elevated pressure, so there is no additional stress on your action, barrel, or brass compared to conventional magnum loads.
How does the 139 grain SST perform at longer hunting ranges?
With a muzzle velocity of 3,240 fps and a G1 ballistic coefficient of 0.486, the 139 grain SST maintains a very flat trajectory and retains significant energy well past 400 yards. At 300 yards it typically carries over 2,000 ft-lbs of energy, making it highly effective on deer, pronghorn, and elk-sized game at practical hunting distances. A solid zero at 200 yards results in minimal holdover out to 350 yards for most rifles.
- Caliber:
- 7MM REM
- Bullet Weight:
- 139 GR
- Bullet Type:
- SST
- Purpose:
- Hunting
- Type:
- Rifle Ammunition
- Box Quantity:
- 20
- Case Quantity:
- 200
- Lead Free:
- No