A ballistics chart tells the story about how a bullet behaves from the moment it leaves the barrel to the moment it hits the target. Once you know what each column means, the chart becomes one of the most useful tools in deciding what ammunition to buy and how to shoot accurately at distance.
What a Ballistics Chart Is
A ballistics chart is a table of data showing how a specific bullet performs at various distances downrange. The data is generated by firing ammunition from a test barrel under controlled conditions and measuring the results.
Most charts show data at standard distance intervals, typically 0, 100, 200, 300, and sometimes 400 or 500 yards. Each row in the chart represents the bullet’s performance at that distance.
One important note before reading any chart: the data applies to the specific bullet weight and load tested, fired from a specific barrel length. Your results may differ if your barrel is shorter or longer than the test barrel. Factory test barrels are typically 24 inches for rifles. Most hunting and sporting rifles have shorter barrels, which means slightly lower muzzle velocity than the chart shows.
The Columns Explained
Muzzle Velocity (fps)
This is the speed of the bullet as it exits the barrel, measured in feet per second. It is the starting point for everything else on the chart. Higher muzzle velocity generally means a flatter trajectory and more energy delivered downrange.
Velocity decreases as the bullet travels. Air resistance, or drag, slows the bullet continuously from the moment it leaves the barrel. A 9mm fired at 1,150 fps does not arrive at 100 yards at 1,150 fps. It arrives slower, and slower still at 200 yards.
Velocity at Distance
Most charts show velocity at multiple distances: 100 yards, 200 yards, 300 yards, and so on. This column tells you how fast the bullet is still traveling at each point. The difference between muzzle velocity and velocity at distance shows you how much the bullet has slowed down due to drag.
Energy (ft-lbs)
Energy is measured in foot-pounds and represents the force the bullet carries at a given distance. It is calculated from the bullet’s weight and velocity. As velocity drops downrange, energy drops as well.
Energy matters for hunting because most hunters and wildlife agencies use a minimum energy threshold to define ethical shooting distances for various game animals. A bullet that retains 1,000 ft-lbs at 300 yards may be appropriate for deer at that distance. The same bullet retaining only 500 ft-lbs at 400 yards may not be. Knowing your load’s energy at distance helps you set a responsible maximum range for the animal you are hunting.
Bullet Drop (inches)
This is the number most shooters pay attention to first and it is the one most commonly misunderstood.
Bullet drop measures how far below the line of sight the bullet strikes at a given distance, assuming a specific zero. Most charts show drop relative to a 100-yard zero or a 200-yard zero. The zero distance matters enormously. The same bullet shows very different drop numbers depending on what zero is assumed.
A bullet zeroed at 100 yards will strike progressively lower at 200, 300, and 400 yards as gravity pulls it toward the earth. A bullet zeroed at 200 yards will strike slightly above point of aim at 100 yards because the bullet’s path crosses the line of sight on the way up and on the way down, then progressively lower beyond 200.
When you see a drop value of -6.4 inches at 300 yards on a chart zeroed at 100 yards, it means that if you aim at the center of a target at 300 yards, the bullet will strike 6.4 inches below where you aimed. You either need to hold over, adjust your scope, or use holdover marks in your reticle to compensate.
Ballistic Coefficient (BC)
The ballistic coefficient is a measure of how efficiently a bullet cuts through the air. A higher BC means the bullet resists drag better, retains velocity longer, and drops less at distance. A lower BC means the bullet slows down faster and drops more.
Two bullets with the same muzzle velocity but different BCs will perform very differently at 300 yards. The higher-BC bullet will be traveling faster, hitting harder, and dropping less.
Ballistic coefficient is particularly important for long-range shooting and hunting at distance. For self-defense and close-range shooting, it matters far less.
You may see two BC models referenced: G1 and G7. G1 is the traditional model, used widely for factory ammunition data. G7 is more accurate for long, boat-tail match bullets. For most hunting and range shooting applications with factory ammunition, G1 BC figures are what you will see on the chart.
Wind Drift (inches)
Many ballistics charts include a wind drift column showing how much a crosswind will deflect the bullet at various distances. The data is typically calculated for a 10 mph crosswind. Wind drift figures are proportional. A 5 mph crosswind produces roughly half the deflection, a 20 mph crosswind roughly double.
Wind drift is often underestimated by new long-range shooters. A 10 mph crosswind can push a bullet several inches off target at 300 yards and significantly more at longer distances. Understanding wind drift is the difference between making a clean shot and a marginal one.
A Sample Chart, Read Out Loud
Here is how to read a typical ballistics chart entry for a common hunting load. The figures below are representative and illustrative — always verify actual data from the manufacturer’s published ballistics for your specific load:
Federal Premium 150-grain Nosler Partition .30-06 Springfield, 24-inch test barrel, zeroed at 200 yards:
| Distance | Velocity (fps) | Energy (ft-lbs) | Drop (inches) | Wind Drift 10mph (inches) |
|---|---|---|---|---|
| Muzzle | 2,910 | 2,820 | -1.5 | 0 |
| 100 yds | 2,683 | 2,397 | +1.5 | 0.7 |
| 200 yds | 2,468 | 2,030 | 0 | 2.9 |
| 300 yds | 2,261 | 1,703 | -7.4 | 6.8 |
| 400 yds | 2,064 | 1,419 | -21.4 | 12.5 |
Reading this: At 100 yards the bullet is 1.5 inches above the line of sight because it is still on its way up to the 200-yard zero. At 200 yards it is dead on. At 300 yards it has dropped 7.4 inches below point of aim and a 10 mph crosswind would push it another 6.8 inches sideways. At 400 yards the drop is over 21 inches. That is nearly two feet of holdover required for a 400-yard shot.
This information tells a hunter that a 300-yard shot on deer requires holding over or dialing the scope, and that wind conditions at 300 yards and beyond require real attention.
What a Chart Cannot Tell You
A ballistics chart gives you the external ballistics: what happens to the bullet in the air. It does not tell you what happens when the bullet hits the target.
Terminal performance, meaning how the bullet expands, penetrates, and transfers energy in tissue, is a separate question from what the chart shows. A bullet with excellent ballistic numbers on paper may perform poorly on game if it is not designed for the application. Conversely, a slower, heavier bullet may expand and penetrate exactly as intended even though the chart shows modest velocity at distance.
Charts also assume ideal conditions. Real-world shooting involves temperature changes, altitude variations, humidity, and wind that may not match the conditions under which the test data was generated. ShootersCalculator.com offers a free ballistics calculator that lets you input your specific conditions and ammunition data to generate a more personalized trajectory estimate.
How to Use This Information
For hunters, the most important columns are energy at distance and bullet drop. Know the minimum energy threshold recommended for the game you are hunting, find the distance at which your load drops below that threshold, and treat that as your maximum ethical range. Then account for drop at that distance when you set your zero and practice your holds.
For precision rifle shooters, every column matters. BC, velocity at distance, wind drift, and drop values form the foundation of a data card that tells you exactly what adjustments to make at each distance under specific conditions.
For handgun and close-range shooting, ballistics charts matter much less. At typical defensive and range distances, drop and wind drift are negligible. The relevant numbers are muzzle velocity and energy, which tell you what the load is delivering at the muzzle and over the short distances where handguns are used.
The NRA Family and manufacturer sites like Hornady, Federal, and Winchester all publish ballistics data for their loads. When you are comparing ammunition, pull the charts for the loads you are considering and read them side by side.
Ballistics data is a starting point, not a substitute for time at the range. A chart tells you what a bullet should do under controlled conditions. Your rifle, your zero, your environment, and your technique determine what it actually does. Use the chart to get close, then shoot to confirm.