.284 | 139gr | Hornady SST
by Hornady · See details on brand website
The Hornady SST (Super Shock Tip) bullet features a sleek, polymer-tipped design with an InterLock ring that mechanically locks the core and jacket together. This non-lead-free bullet delivers devastating terminal performance with rapid, controlled expansion. The secant ogive and boat-tail design provide a high ballistic coefficient for flat trajectories and excellent accuracy at hunting distances. The SST is particularly effective on medium game like deer and antelope, where its explosive expansion creates large wound channels for quick, ethical kills. Its distinctive red polymer tip initiates expansion even at reduced velocities.
Specifications
Weight
139 gr (9.01 g)
Diameter
0.284″ (7.21 mm)
Sectional Density
0.246
BC G1
0.486
Type
SST
Min. Twist
1:10.5
Related Load Recipes
Load recipes using .284 | 139gr | SST are available in the following cartridges:
.28 Nosler
.280 Ackley Improved
.280 Rem.
.280 Riml. N.E. Ross
.284 Win.
7 FCP
7 mm B.R. Rem.
7 mm Backcountry
7 mm Blaser Mag.
7 mm Exp. Rem.
7 mm KM Katzmaier
7 mm Mag. Fl. H&H
7 mm PRC
7 mm Rem. Mag.
7 mm Rem. SA Ultra Mag.
7 mm Rem. Ultra Mag.
7 mm STW
7 mm Weath. Mag.
7 mm WSM
7 mm-08 Rem.
7 x 50 R
7 x 57
7 x 57 R
7 x 61 S&H (Super)
7 x 64 Brenneke
7 x 65 R Brenneke
7 x 66 SE v. Hofe
7 x 72 R
7 x 75 R SE v. Hofe
7-.300 Norma Mag.
7-6.5 PRCW
7.21 Firebird
Similar Bullets
Same-caliber projectiles within ±0.003", ±5gr, ±7.5% length and matching lead content from other brands.
.283 | 140gr | Frontier PH HPFB
Frontier Bullets · 140gr · BC 0.33
.284 | 140gr | GameKing
Sierra · 140gr · BC 0.375
.284 | 140gr | Ballistic Tip Hunting
Nosler · 140gr · BC 0.485
.283 | 140gr | Rhino Penetrator
Rhino Bullets · 140gr · BC 0.485
.283 | 140gr | Frontier PH HPBT
Frontier Bullets · 140gr · BC 0.423
.284 | 140gr | Solid
Barnes · 140gr · BC 0.44
.284 | 140gr | NorthFork Bonded Core
North Fork · 140gr · BC 0.335
.284 | 139gr | SF
MEN · 139gr · BC 0.25
.284 | 140gr | HP
SUS-TAC · 140gr · BC 0.439
.284 | 139gr | InterBond
Hornady · 139gr · BC 0.486
.284 | 140gr | VLD Hunting
Berger · 140gr · BC 0.5
.284 | 140gr | HPBT GameKing
Sierra · 140gr · BC 0.375
Community Load Data for .284 | 139gr | SST
Loads for .284 | 139gr | SST from our community:
16 loads
| cartridge | Powder | Barrel (in) | Charge (gr) | OAL (in) | Max. Pressure (psi) | Muzzle Velocity (fps) |
|---|---|---|---|---|---|---|
| 7 x 65 R Brenneke | Reload Swiss RS 60 | 22.0 | 51.0 | 3.240 | 52235 (95%) | 2897 |
| 7 mm Rem. Mag. | Vihtavuori N165 | 25.6 | 69.0 | 3.291 | 55123 (88%) | 3061 |
| 7 mm Rem. Mag. | Reload Swiss RS 70 | 25.6 | 67.0 | 3.291 | 56040 (90%) | 3182 |
| 7 x 57 | Hodgdon H4350 | 22.0 | ••.• | 3.150 | 55233 (98%) | 2828 |
| 7 x 57 | Hodgdon H4350 | 22.0 | ••.• | 3.150 | 53853 (95%) | 2779 |
| 7 x 57 | Hodgdon H4350 | 22.0 | ••.• | 3.150 | 46528 (82%) | 2657 |
| .284 Win. | Hodgdon CFE223 | 24.0 | ••.• | 2.758 | 58494 (92%) | 2999 |
| 7 mm-08 Rem. | IMR 4064 | 20.0 | ••.• | 2.800 | 57406 (95%) | 2694 |
| 7 mm-08 Rem. | IMR 8208 XBR | 20.0 | ••.• | 2.800 | 58160 (97%) | 2703 |
| 7 mm-08 Rem. | Accurate Powders 4064 | 20.0 | ••.• | 2.800 | 52228 (87%) | 2641 |
| 7 mm-08 Rem. | Hodgdon VARGET | 20.0 | ••.• | 2.800 | 57377 (95%) | 2710 |
| 7 mm-08 Rem. | Somchem S341 | 20.0 | ••.• | 2.800 | 58030 (96%) | 2749 |
| .284 Win. | Hodgdon CFE223 | 24.0 | ••.• | 2.758 | 56710 (89%) | 2972 |
| 7 x 57 | Hodgdon H4350 | 22.0 | ••.• | 3.150 | 48965 (87%) | 2723 |
| 7 mm Rem. Mag. | Ramshot Grand | 26.0 | ••.• | 3.290 | 62323 (100%) | 3304 |
| 7 x 65 R Brenneke | Vihtavuori N540 | 23.6 | ••.• | 3.291 | 49705 (90%) | 2749 |