Hornady Superformance 7mm Remington Magnum 139gr SST Ammo Ballistics
Brass Case • SST
Hornady Superformance 7mm Remington Magnum 139gr SST Ammo Ballistics
Brass Case • SST
Trajectory @ 100yd Zero
| Range | Velocity | Energy | Drop |
|---|---|---|---|
| Muzzle | 3240 fps | 3240 ft-lb | — |
| 25 yds | 3187 fps | 3135 ft-lb | -0.8" |
| 50 yds | 3135 fps | 3034 ft-lb | -0.3" |
| 75 yds | 3083 fps | 2936 ft-lb | -0.0" |
| 100 yds ⊕ | 3033 fps | 2840 ft-lb | -0.0" |
| 125 yds | 2983 fps | 2747 ft-lb | -0.2" |
| 150 yds | 2933 fps | 2657 ft-lb | -0.6" |
| 175 yds | 2885 fps | 2569 ft-lb | -1.3" |
| 200 yds | 2836 fps | 2484 ft-lb | -2.3" |
| 225 yds | 2788 fps | 2401 ft-lb | -3.5" |
| 250 yds | 2741 fps | 2320 ft-lb | -5.0" |
| 275 yds | 2694 fps | 2242 ft-lb | -6.8" |
| 300 yds | 2648 fps | 2165 ft-lb | -8.9" |
| 325 yds | 2602 fps | 2091 ft-lb | -11.3" |
| 350 yds | 2557 fps | 2019 ft-lb | -14.0" |
| 375 yds | 2512 fps | 1949 ft-lb | -17.1" |
| 400 yds | 2468 fps | 1880 ft-lb | -20.5" |
| 425 yds | 2424 fps | 1814 ft-lb | -24.2" |
| 450 yds | 2380 fps | 1749 ft-lb | -28.4" |
| 475 yds | 2337 fps | 1686 ft-lb | -32.9" |
| 500 yds | 2294 fps | 1625 ft-lb | -37.8" |
Product Overview
The Hornady Superformance 7mm Remington Magnum 139gr SST delivers blazing velocity for hunters who prioritize flat trajectories and explosive terminal performance on medium-sized game. At 3,240 fps muzzle velocity with 3,239 ft-lbs of energy, this is one of the fastest factory loads available in 7mm Rem Mag, making it devastating on deer, pronghorn, and similar-sized animals. The polymer-tipped SST bullet initiates rapid expansion on impact, creating dramatic wound channels that anchor game quickly.
This load is particularly well-suited for open-country hunting where shots may present themselves at varying distances with little warning. The lighter 139-grain bullet paired with Superformance propellants creates an exceptionally flat trajectory that simplifies holdover calculations. Pronghorn hunters in the Western plains and whitetail hunters working agricultural fields will appreciate how this ammunition minimizes the need for precise range estimation on quick shots.
The SST's .486 G1 ballistic coefficient combined with high velocity makes this an excellent choice for hunters who want maximum point-blank range. While the lighter bullet may not penetrate as deeply as heavier options on elk-sized game, it excels on deer-sized animals where rapid energy transfer is preferred. This ammunition also produces consistent accuracy in most hunting rifles, making it a reliable choice for filling the freezer.
- Blazing 3,240 fps velocity creates an exceptionally flat trajectory that simplifies holdover at varying distances
- Superformance propellants achieve higher velocity without excessive pressure or increased felt recoil
- SST polymer tip ensures reliable expansion even at extended ranges where velocity has dropped
- 3,239 ft-lbs of muzzle energy delivers devastating terminal performance on medium-sized game
- Lighter 139gr bullet may lack penetration for steep quartering shots on elk-sized game
- Rapid expansion can cause excessive meat damage on broadside shoulder shots at close range
- Higher velocity increases barrel wear compared to standard-velocity loads
All Hornady Superformance 7mm Remington Magnum 139gr SST Ammo Prices
| DEALER | QTY | PRICE | SHIPPING | TOTAL | PRICE/RD |
|---|---|---|---|---|---|
| Lucky Gunner | 20 | $50.00 | $17.68 | $67.68 | $3.38 |