9mm Ballistics: Trajectory and Bullet Drop Chart
Understanding 9mm ballistics requires looking at how bullet weight, barrel length, and projectile design dictate muzzle velocity, energy, and downrange travel. The charts below use verified manufacturer data and reliable estimates to detail exact ammunition performance.
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9mm Ballistics Chart
| Bullet Weight | Bullet Type | Manufacturer and Load | Test Barrel Length | Muzzle Velocity | Velocity at 25 Yards | Velocity at 50 Yards | Velocity at 100 Yards | Muzzle Energy | Energy at 25 Yards | Energy at 50 Yards | Energy at 100 Yards | Bullet Drop at 25 Yards | Bullet Drop at 50 Yards | Bullet Drop at 100 Yards | Ballistic Coefficient |
| 115-grain | FMJ | CCI Blazer Brass | 4 inches | 1,145 fps | Not verified | Not verified | Not verified | 335 ft-lbs | Not verified | Not verified | Not verified | 0.0 inches | -1.3 inches | -10.1 inches | 0.155 |
| 124-grain | FMJ | Generic Model Estimate | 4 inches | 1,090 fps | 1,048 fps | 1,014 fps | 956 fps | 327 ft-lbs | 303 ft-lbs | 283 ft-lbs | 251 ft-lbs | 0.0 inches | -1.48 inches | -10.9 inches | 0.150 |
| 147-grain | FMJ | Armscor | 4 inches | 850 fps | Not verified | Not verified | Not verified | 236 ft-lbs | Not verified | Not verified | Not verified | 0.0 inches | -2.6 inches | -17.6 inches | 0.212 |
Analyzing the 9mm Ballistics Chart
- Muzzle velocity ranges from 850 fps for heavy 147-grain loads to 1,145 fps for lighter 115-grain loads.
- Lighter 115-grain and 124-grain bullets start faster, while 147-grain bullets retain momentum better downrange due to a higher ballistic coefficient (0.212 vs. 0.150).
- Based on the 124-grain estimate, velocity drops by 134 fps and energy decreases by 76 ft-lbs over 100 yards.
9mm Ballistics by the Inch
Barrel length dictates muzzle velocity because longer barrels give expanding gases more time to propel the bullet before it exits the muzzle.
| Barrel Length | Bullet Weight | Manufacturer and Load | Muzzle Velocity | Difference From Reference Barrel | Muzzle Energy | Test Source or Conditions |
| 4 inches | 124-grain | Standard 124gr FMJ | 1,140 fps | Reference | 358 ft-lbs | Published test averages |
| 5 inches | 124-grain | Standard 124gr FMJ | 1,175 fps | +35 fps | 380 ft-lbs | Published test averages |
| 8 inches | 124-grain | Standard 124gr FMJ | 1,260 fps | +120 fps | 437 ft-lbs | Published test averages |
| 16 inches | 124-grain | Standard 124gr FMJ | 1,360 fps | +220 fps | 509 ft-lbs | Published test averages |
Understanding Velocity Across Barrel Lengths
- Velocity increases by 220 fps when moving from a standard 4-inch handgun barrel to a 16-inch carbine barrel.
- Upgrading from a 4-inch carry barrel to a 5-inch full-size barrel adds roughly 35 fps.
- The tested ammunition consistently gains velocity across the entire measured range.
9mm Ballistics Chart Barrel Length
| Barrel Length (Inches) | Typical Firearm Platform | Muzzle Velocity (FPS) | Velocity Gain vs. 3″ | Muzzle Energy (ft-lbs) | Velocity Gain per Inch | Peak Efficiency Status |
| 3.0″ | Sub-Compact / Pocket (Sig P938) | 1,050 | Baseline | 304 | Baseline | High Powder Blow-by |
| 3.5″ | Micro-Compact (Glock 43, Sig P365) | 1,100 | +50 FPS | 333 | +100 FPS / in | Rapid Burn Phase |
| 4.0″ | Compact Handgun (Glock 19) | 1,140 | +90 FPS | 358 | +80 FPS / in | Standard Subsonic Boundary |
| 4.5″ / 5.0″ | Full-Size / Duty (Glock 17, Beretta 92) | 1,180 | +130 FPS | 383 | +40 FPS / in | Complete Pistol Burn |
| 7.0″ / 8.0″ | AR-9 / PCC Pistol (8″ Barrel) | 1,320 | +270 FPS | 480 | +46 FPS / in | High PCC Acceleration |
| 10.0″ | Submachine Gun / Short Carbine | 1,370 | +320 FPS | 517 | +25 FPS / in | Near Peak Expansion |
| 12.0″ | Medium Carbine Barrel | 1,395 | +345 FPS | 536 | +12.5 FPS / in | Peak Velocity Threshold |
| 16.0″ | Full-Length Rifle / Rifle PCC | 1,400 | +350 FPS | 540 | +1.25 FPS / in | Friction Plateau |
9mm Trajectory Chart
Trajectory describes the bullet’s flight path relative to the sights. The bullet starts below the line of sight, rises to intersect it, and eventually falls due to gravity.
| Distance | Trajectory Relative to Line of Sight | Remaining Velocity | Remaining Energy | Ammunition Load | Assumptions |
| 5 yards | -0.24 inches | 1,081 fps | 321 ft-lbs | 124-grain FMJ | 25-yard zero, 0.5 inch sight height, estimated |
| 25 yards | 0.00 inches | 1,048 fps | 303 ft-lbs | 124-grain FMJ | 25-yard zero, 0.5 inch sight height, estimated |
| 50 yards | -1.48 inches | 1,014 fps | 283 ft-lbs | 124-grain FMJ | 25-yard zero, 0.5 inch sight height, estimated |
| 100 yards | -10.90 inches | 956 fps | 251 ft-lbs | 124-grain FMJ | 25-yard zero, 0.5 inch sight height, estimated |
Analyzing the 9mm Trajectory
- At 5 yards, the bullet impacts 0.24 inches below the line of sight as it climbs from the barrel.
- At 25 yards, the trajectory aligns perfectly with the aiming point (0.00 inches).
- Gravity noticeably pulls the bullet 1.48 inches low at 50 yards and 10.90 inches low by 100 yards.
9mm Bullet Drop Chart
Bullet drop measures exactly how far the projectile falls below its established zero point as the distance to the target increases.
| Distance | Bullet Drop | Remaining Velocity | Remaining Energy | Bullet Weight | Reference and Assumptions |
| 5 yards | -0.24 inches | 1,081 fps | 321 ft-lbs | 124-grain | Drop from line of sight, 25-yard zero, estimated |
| 25 yards | 0.00 inches | 1,048 fps | 303 ft-lbs | 124-grain | Drop from line of sight, 25-yard zero, estimated |
| 50 yards | -1.48 inches | 1,014 fps | 283 ft-lbs | 124-grain | Drop from line of sight, 25-yard zero, estimated |
| 100 yards | -10.90 inches | 956 fps | 251 ft-lbs | 124-grain | Drop from line of sight, 25-yard zero, estimated |
Understanding 9mm Bullet Drop
- Bullet drop is exactly 0.0 inches at the 25-yard zero baseline.
- At 50 yards, the 124-grain bullet drops 1.48 inches, requiring a minor holdover adjustment.
- By 100 yards, the drop becomes severe at 10.90 inches below the aiming point.
Factors That Affect 9mm Ballistics
Bullet weight divides ammunition into three main categories. Lighter 115-grain bullets maximize speed, 124-grain bullets balance speed and penetration, and heavy 147-grain bullets stay subsonic while penetrating deeply.
Barrel length directly impacts muzzle velocity. A standard 4-inch barrel provides optimal burn time, while shorter subcompact barrels bleed off gas pressure early, resulting in lower velocities.
Projectile design and ballistic coefficient determine aerodynamic efficiency. Bullets with a higher ballistic coefficient experience less drag, retaining their speed and energy better over long distances.
Muzzle velocity and retained energy are permanently linked. While faster bullets deliver more initial kinetic energy, retaining that energy downrange relies entirely on the bullet’s mass and aerodynamic profile.
Sight height and zero distance shift the trajectory curve. A red dot sight mounted high above the bore requires a steeper upward bullet angle to meet the crosshairs compared to low-profile iron sights.
Temperature, air density, and real-world mechanics also alter flight. Dense cold air increases drag, while worn, real-world handgun barrels often produce slower velocities than precise factory test fixtures.
Frequently Asked Questions
What is the muzzle velocity of a 9mm bullet? Typically 850 fps for heavy 147-grain subsonic loads up to 1,300 fps for lighter 115-grain +P ammunition fired from a 4-inch barrel.
What is a 9mm ballistics chart? A data table that lists exact performance metrics like velocity, energy, and bullet drop across specific distances for various ammunition loads.
How does barrel length affect 9mm ballistics? Longer barrels give gunpowder more time to burn and push the bullet, increasing muzzle velocity and energy, while shorter barrels decrease them.
How much velocity does 9mm lose with a shorter barrel? Reducing barrel length from 4 inches to 3 inches typically results in a velocity loss of 30 to 50 fps, depending on the load.
How much does a 9mm bullet drop at 25 yards? If a 9mm handgun is zeroed exactly at 25 yards, the bullet drop at that distance is 0.0 inches.
How much does a 9mm bullet drop at 50 yards? When zeroed at 25 yards, a standard 124-grain 9mm bullet will typically drop about 1.48 inches at the 50-yard mark.
What is the trajectory of a 9mm bullet? It is a curved flight path that starts slightly below the sights, rises to meet the aiming point at zero, and gradually falls 10 to 12 inches low by 100 yards.
What is the difference between 115-grain, 124-grain, and 147-grain 9mm ammunition? 115-grain rounds are lighter and faster, 124-grain rounds offer balanced performance, and 147-grain rounds are heavier, slower, and often subsonic.
How much energy does a 9mm bullet retain at 50 yards? A standard 124-grain bullet starting with 327 ft-lbs of muzzle energy will usually retain about 283 ft-lbs at 50 yards.
Does 9mm bullet drop vary between handguns? Yes, because different barrel lengths change the initial muzzle velocity and different sight heights alter the trajectory angle.
