Ammo Inc Signature .357 Magnum 158gr JHP Ammo Ballistics
Brass Case • JHP
Ammo Inc Signature .357 Magnum 158gr JHP Ammo Ballistics
Brass Case • JHP
Solved from this product's advertised 1250 fps, 158gr bullet and G1 BC 0.170, with the sight 0.5" over the bore at standard conditions. Compare every zero for .357 Mag.
How to read it: filled circles are the near and far zero, where the bullet's path crosses the line of sight;the triangle is the peak (max ordinate). The shaded band is the 4" vital zone, ±2" either side of the line of sight. The dashed line marks the edge of the hold-dead-on window. The chart is zoomed to where the zero matters; the tables below run to 100 yards.
.357 Mag 158gr with a 10-yard zero
Zeroed at 10 yards with a 0.5" sight height, this load crosses the line of sight on the way up at 10 yards, peaks +0.3" at 25 yards, crosses back down at 41 yards, and is -0.5" at 50 and -7.3" at 100 yards.
| Range (yd) | Drop (in) | Drop (MOA) | Drop (MIL) | Velocity (fps) | Energy (ft-lb) | Wind drift, 10 mph (in) |
|---|---|---|---|---|---|---|
| 0 | -0.5" | 0.00 | 0.00 | 1,250 | 548 | 0.1 |
| 5 | -0.2" | -4.06 | -1.18 | 1,236 | 536 | 0.1 |
| 10 | 0.0" | -0.06 | -0.02 | 1,223 | 525 | 0.1 |
| 15 | +0.2" | +0.94 | +0.27 | 1,210 | 514 | 0.2 |
| 20 | +0.3" | +1.16 | +0.34 | 1,198 | 504 | 0.3 |
| 25 | +0.3" | +1.07 | +0.31 | 1,186 | 493 | 0.4 |
| 30 | +0.3" | +0.81 | +0.24 | 1,174 | 484 | 0.5 |
| 35 | +0.2" | +0.45 | +0.13 | 1,163 | 474 | 0.6 |
| 40 | 0.0" | +0.03 | +0.01 | 1,152 | 465 | 0.8 |
| 45 | -0.2" | -0.44 | -0.13 | 1,141 | 457 | 1.0 |
| 50 | -0.5" | -0.94 | -0.27 | 1,131 | 449 | 1.2 |
| 55 | -0.9" | -1.46 | -0.43 | 1,121 * | 441 | 1.4 |
| 60 | -1.3" | -2.01 | -0.59 | 1,111 * | 433 | 1.7 |
| 65 | -1.8" | -2.58 | -0.75 | 1,102 * | 426 | 2.0 |
| 70 | -2.3" | -3.17 | -0.92 | 1,093 * | 419 | 2.3 |
| 75 | -3.0" | -3.76 | -1.10 | 1,084 * | 412 | 2.6 |
| 80 | -3.7" | -4.38 | -1.27 | 1,076 * | 406 | 2.9 |
| 85 | -4.5" | -5.00 | -1.46 | 1,067 * | 400 | 3.3 |
| 90 | -5.3" | -5.64 | -1.64 | 1,059 * | 394 | 3.6 |
| 95 | -6.3" | -6.29 | -1.83 | 1,052 * | 388 | 4.0 |
| 100 | -7.3" | -6.94 | -2.02 | 1,044 * | 383 | 4.4 |
158gr G1 .170 at 1,250 fps, 0.5" sight height over bore, standard conditions (59°F, sea level), 10 mph full-value crosswind. Positive drop is above the line of sight. * Below the speed of sound (1125 fps) from 53 yards; expect groups to open up past the transition. Source: Manufacturer's advertised velocity and BC.
.357 Mag 158gr with a 15-yard zero
Zeroed at 15 yards with a 0.5" sight height, this load touches the line of sight at 15 yards without ever climbing above it (a tangent zero), and is -1.0" at 50 and -8.3" at 100 yards.
| Range (yd) | Drop (in) | Drop (MOA) | Drop (MIL) | Velocity (fps) | Energy (ft-lb) | Wind drift, 10 mph (in) |
|---|---|---|---|---|---|---|
| 0 | -0.5" | 0.00 | 0.00 | 1,250 | 548 | 0.1 |
| 5 | -0.3" | -5.02 | -1.46 | 1,236 | 536 | 0.1 |
| 10 | -0.1" | -1.02 | -0.30 | 1,223 | 525 | 0.1 |
| 15 | 0.0" | -0.02 | -0.01 | 1,210 | 514 | 0.2 |
| 20 | 0.0" | +0.20 | +0.06 | 1,198 | 504 | 0.3 |
| 25 | 0.0" | +0.11 | +0.03 | 1,186 | 493 | 0.4 |
| 30 | -0.1" | -0.15 | -0.04 | 1,174 | 484 | 0.5 |
| 35 | -0.2" | -0.51 | -0.15 | 1,163 | 474 | 0.6 |
| 40 | -0.4" | -0.93 | -0.27 | 1,152 | 465 | 0.8 |
| 45 | -0.7" | -1.40 | -0.41 | 1,141 | 457 | 1.0 |
| 50 | -1.0" | -1.90 | -0.55 | 1,131 | 449 | 1.2 |
| 55 | -1.4" | -2.42 | -0.71 | 1,121 * | 441 | 1.4 |
| 60 | -1.9" | -2.97 | -0.87 | 1,111 * | 433 | 1.7 |
| 65 | -2.4" | -3.54 | -1.03 | 1,102 * | 426 | 2.0 |
| 70 | -3.0" | -4.13 | -1.20 | 1,093 * | 419 | 2.3 |
| 75 | -3.7" | -4.73 | -1.37 | 1,084 * | 412 | 2.6 |
| 80 | -4.5" | -5.34 | -1.55 | 1,076 * | 406 | 2.9 |
| 85 | -5.3" | -5.96 | -1.73 | 1,067 * | 400 | 3.3 |
| 90 | -6.2" | -6.60 | -1.92 | 1,059 * | 394 | 3.6 |
| 95 | -7.2" | -7.25 | -2.11 | 1,052 * | 388 | 4.0 |
| 100 | -8.3" | -7.90 | -2.30 | 1,044 * | 383 | 4.4 |
158gr G1 .170 at 1,250 fps, 0.5" sight height over bore, standard conditions (59°F, sea level), 10 mph full-value crosswind. Positive drop is above the line of sight. * Below the speed of sound (1125 fps) from 53 yards; expect groups to open up past the transition. Source: Manufacturer's advertised velocity and BC.
.357 Mag 158gr with a 25-yard zero
Zeroed at 25 yards with a 0.5" sight height, this load touches the line of sight at 25 yards without ever climbing above it (a tangent zero), and is -1.1" at 50 and -8.4" at 100 yards.
| Range (yd) | Drop (in) | Drop (MOA) | Drop (MIL) | Velocity (fps) | Energy (ft-lb) | Wind drift, 10 mph (in) |
|---|---|---|---|---|---|---|
| 0 | -0.5" | 0.00 | 0.00 | 1,250 | 548 | 0.1 |
| 5 | -0.3" | -5.12 | -1.49 | 1,236 | 536 | 0.1 |
| 10 | -0.1" | -1.12 | -0.33 | 1,223 | 525 | 0.1 |
| 15 | 0.0" | -0.12 | -0.04 | 1,210 | 514 | 0.2 |
| 20 | 0.0" | +0.10 | +0.03 | 1,198 | 504 | 0.3 |
| 25 | 0.0" | 0.00 | 0.00 | 1,186 | 493 | 0.4 |
| 30 | -0.1" | -0.26 | -0.07 | 1,174 | 484 | 0.5 |
| 35 | -0.2" | -0.61 | -0.18 | 1,163 | 474 | 0.6 |
| 40 | -0.4" | -1.03 | -0.30 | 1,152 | 465 | 0.8 |
| 45 | -0.7" | -1.50 | -0.44 | 1,141 | 457 | 1.0 |
| 50 | -1.1" | -2.00 | -0.58 | 1,131 | 449 | 1.2 |
| 55 | -1.5" | -2.53 | -0.74 | 1,121 * | 441 | 1.4 |
| 60 | -1.9" | -3.08 | -0.89 | 1,111 * | 433 | 1.7 |
| 65 | -2.5" | -3.64 | -1.06 | 1,102 * | 426 | 2.0 |
| 70 | -3.1" | -4.23 | -1.23 | 1,093 * | 419 | 2.3 |
| 75 | -3.8" | -4.83 | -1.40 | 1,084 * | 412 | 2.6 |
| 80 | -4.6" | -5.44 | -1.58 | 1,076 * | 406 | 2.9 |
| 85 | -5.4" | -6.07 | -1.76 | 1,067 * | 400 | 3.3 |
| 90 | -6.3" | -6.70 | -1.95 | 1,059 * | 394 | 3.6 |
| 95 | -7.3" | -7.35 | -2.14 | 1,052 * | 388 | 4.0 |
| 100 | -8.4" | -8.01 | -2.33 | 1,044 * | 383 | 4.4 |
158gr G1 .170 at 1,250 fps, 0.5" sight height over bore, standard conditions (59°F, sea level), 10 mph full-value crosswind. Positive drop is above the line of sight. * Below the speed of sound (1125 fps) from 53 yards; expect groups to open up past the transition. Source: Manufacturer's advertised velocity and BC.
Product Overview
Ammo Inc Signature 158-grain is a jacketed hollow point .357 Magnum load, and Ammo Inc states no purpose for it. At 1,250 fps it makes 548 ft-lbs, which is ordinary full-power territory for the caliber's 158-grain loads.
Zeroed at 25 yards, it is 1.1 inches low at 50, where it still carries 1,131 fps and 449 ft-lbs. Estimated recoil runs within a few percent of Federal's American Eagle 158-grain JSP and Fiocchi's Defense Dynamics 158-grain JHP, and the drop at 50 yards is the same to a tenth of an inch.
If you're cross-shopping, Sellier & Bellot's 158-grain Soft Point is 13 fps faster with 12 ft-lbs more at the muzzle, on an exposed lead nose. PMC's Bronze 158-grain JSP is the hot one at 1,471 fps and 759 ft-lbs, 221 fps and 211 ft-lbs ahead.
- 449 ft-lbs still at 50 yards, mid-pack among the caliber's standard 158-grain loads
- A hollow point, where Sellier & Bellot's 158-grain Soft Point and Federal's American Eagle 158-grain JSP leave lead at the tip
- About 25 percent less estimated recoil than PMC's Bronze 158-grain JSP
- Ammo Inc's site refuses connections from here and no maker figure could be obtained, so nothing on this page has been checked against it
- Fiocchi's Defense Dynamics 158-grain JHP is the same bullet style a shade slower for a shade less push
- PMC's Bronze 158-grain JSP holds 596 ft-lbs at 50 yards against 449 here
Similar Products Compared
| PRODUCT | WEIGHT | TYPE | VELOCITY | ENERGY | BC | PRICE/RD |
|---|---|---|---|---|---|---|
| 158 gr | JHP | 1250 fps | 548 ft-lbs | 0.17 |
$0.54
500 Rounds
|
|
| 158 gr | JSP | 1471 fps | 759 ft-lbs | 0.165 |
$0.54
500 Rounds
|
|
| 158 gr | JHP | 1220 fps | 522 ft-lbs | 0.17 |
$0.67
1000 Rounds
|
|
| 158 gr | SP | 1263 fps | 560 ft-lbs | 0.184 |
$0.51
1000 Rounds
|
|
| 158 gr | JSP | 1240 fps | 539 ft-lbs | 0.2 |
$0.69
1000 Rounds
|
All Ammo Inc Signature .357 Magnum 158gr JHP Ammo Prices
| DEALER | QTY | PRICE | SHIPPING | TOTAL | PRICE/RD |
|---|---|---|---|---|---|
| Sentry Ammo | 500 | $253.25 | $17.99 | $271.24 | $0.54 |
| Black Basin Outdoors | 500 | $271.64 | $0.00 | $271.64 | $0.54 |
| Fast Ammo | 500 | $247.74 | $35.99 | $283.73 | $0.57 |
| Sentry Ammo | 50 | $34.01 | $11.99 | $46.00 | $0.92 |
| Black Basin Outdoors | 50 | $35.55 | $10.99 | $46.54 | $0.93 |
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