As the .357 Magnum travels downrange, a standard 158-grain bullet sheds its speed steadily due to its blunt pistol profile, dropping to roughly 380 fps at 1,000 yards. At the muzzle, velocities measure roughly 1,250 fps for standard 158-grain revolver loads and up to 1,800 fps when fired from a longer lever action rifle barrel. The charts below detail these velocity measurements across extreme distances and varying barrel lengths.
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.357 Magnum Velocity Chart at 100 to 1,000 Yards
Note: The .357 Magnum is primarily a short range handgun and brush hunting cartridge designed for targets within 100 to 150 yards. Data beyond 200 yards represents mathematical model extrapolations. Reaching 500 to 1,000 yards requires extreme mortar like trajectory angles, and the bullet will enter terminal free fall well before reaching the 1,000 yard mark.
| Distance (yards) | Distance (meters) | Ammunition / Bullet Weight | Barrel Length (inches) | Estimated Velocity (fps) | Velocity Loss from Muzzle (fps) |
| Muzzle (0) | 0.0 m | 158-gr Hornady XTP (BC: ~0.206) | 4.0 | 1,250 fps (Published) | 0 fps |
| 100 yards | 91.4 m | 158-gr Hornady XTP (BC: ~0.206) | 4.0 | 1,020 fps (G1 Calculation) | 230 fps |
| 200 yards | 182.9 m | 158-gr Hornady XTP (BC: ~0.206) | 4.0 | 880 fps (G1 Calculation) | 370 fps |
| 300 yards | 274.3 m | 158-gr Hornady XTP (BC: ~0.206) | 4.0 | 780 fps (Extrapolation) | 470 fps |
| 400 yards | 365.8 m | 158-gr Hornady XTP (BC: ~0.206) | 4.0 | 690 fps (Extrapolation) | 560 fps |
| 500 yards | 457.2 m | 158-gr Hornady XTP (BC: ~0.206) | 4.0 | 620 fps (Extrapolation) | 630 fps |
| 600 yards | 548.6 m | 158-gr Hornady XTP (BC: ~0.206) | 4.0 | 560 fps (Extrapolation) | 690 fps |
| 700 yards | 640.1 m | 158-gr Hornady XTP (BC: ~0.206) | 4.0 | 500 fps (Extrapolation) | 750 fps |
| 800 yards | 731.5 m | 158-gr Hornady XTP (BC: ~0.206) | 4.0 | 460 fps (Extrapolation) | 790 fps |
| 900 yards | 823.0 m | 158-gr Hornady XTP (BC: ~0.206) | 4.0 | 420 fps (Extrapolation) | 830 fps |
| 1,000 yards | 914.4 m | 158-gr Hornady XTP (BC: ~0.206) | 4.0 | 380 fps (Terminal Free-Fall) | 870 fps |
.357 Magnum Muzzle Velocity Chart
| Ammunition Type | Bullet Weight (grains) | Barrel Length (inches) | Muzzle Velocity (fps) | Muzzle Energy (ft-lbs) |
| 125-grain JHP Federal American Eagle [Manufacturer Spec] | 125 | 4.0 (Standard Revolver) | 1,450 (Advertised) | 584 |
| 125-grain JHP Federal American Eagle [Independent Estimate] | 125 | 2.0 (Snub Nose) | 1,200 (Estimated) | 400 |
| 158-grain JHP Hornady Custom XTP [Manufacturer Spec] | 158 | 4.0 (Standard Revolver) | 1,250 (Advertised) | 548 |
| 158-grain JHP Hornady Custom XTP [Independent Estimate] | 158 | 2.0 (Snub Nose) | 1,050 (Estimated) | 387 |
| 158-grain Soft Point Winchester Super-X [Manufacturer Spec] | 158 | 6.0 (Long Revolver) | 1,350 (Advertised) | 639 |
| 158-grain Soft Point Winchester Super-X [Independent Estimate] | 158 | 18.0 (Lever Action Rifle) | 1,800 (Estimated) | 1,137 |
Factors Affecting Velocity
- Rifle vs. Revolver Barrel Length: The .357 Magnum utilizes slow burning pistol powders that thrive in longer barrels. When fired from an 18-inch lever action rifle, the trapped expanding gases continue to push the bullet much longer than in a handgun. This sealed breech system typically adds 400 to 500 fps to the muzzle velocity, transforming it into a highly capable brush hunting rifle.
- The Cylinder Gap: When fired from a revolver, a small amount of high pressure expanding gas escapes through the tiny gap between the cylinder and the barrel forcing cone. This gas bleed results in a slight loss of velocity compared to a sealed breech firearm like a single shot pistol or rifle with the exact same barrel length.
- Bullet Weight: The 125-grain and 158-grain bullets are the most popular choices for the .357 Magnum. The lightweight 125-grain bullets are pushed to blistering speeds of 1,450 fps for explosive expansion in defensive situations. The heavier 158-grain bullets start slower around 1,250 fps but carry more momentum for deeper penetration on medium game.
- Aerodynamics: Like most revolver cartridges, .357 Magnum bullets are short, wide, and flat nosed. This results in a very low Ballistic Coefficient. The blunt shape creates immense air drag, causing the bullet to shed its velocity rapidly once it leaves the muzzle.
Frequently Asked Questions (FAQs)
Can I shoot .38 Special ammunition in a .357 Magnum?
Yes. The .357 Magnum cartridge was created by simply lengthening the original .38 Special case so it could hold more powder safely. You can safely fire standard or +P .38 Special rounds in any .357 Magnum firearm. The .38 Special will produce significantly less velocity and much milder recoil for practice.
How much velocity does a 2-inch snub nose revolver lose?
A 2-inch barrel does not give the magnum powder enough time to fully burn. You can expect to lose about 200 to 250 fps compared to a 4-inch barrel. While the bullet will still hit hard, you will also experience a massive fireball and severe recoil due to the unburnt powder igniting outside the muzzle.
At what distance does a .357 Magnum go subsonic?
When fired from a 4-inch revolver, a standard 158-grain bullet launched at 1,250 fps will drop below the speed of sound (roughly 1,125 fps) within the first 50 to 75 yards. Lighter 125-grain bullets pushed to 1,450 fps will remain supersonic out to about 100 yards.
What is the effective hunting range of a .357 Magnum?
When fired from a 4-inch or 6-inch revolver, the .357 Magnum is generally effective for deer sized game out to about 50 yards. When fired from an 18-inch lever action rifle, the massive increase in velocity extends that ethical hunting range to approximately 100 to 125 yards before the bullet loses necessary expansion energy.