CaliberAtlas › Guides › How to Read a Factory Ballistics Table
A table is useful only when you know which product it describes, what its headings mean, and which conditions belong to it. Use this checklist before comparing figures.
By Preston Willis · Published October 28, 2026 · Last updated October 28, 2026
Match the cartridge designation, manufacturer, product line, bullet name and weight, and item number. A cartridge name or bullet weight alone does not identify the same factory load. Federal's P3006TA1 page, for example, separates its part number and product specifications from its Ballistics tables.
The schematic below explains common headings. It contains no trajectory values and does not represent a particular load. Follow the publisher's labels when a table uses different terms.
| Heading | What to check |
|---|---|
| Distance / range | The location along the table. Check yards or metres; “muzzle” is not a downrange distance. |
| Velocity | Speed at the stated location. Keep feet per second (fps) and metres per second (m/s) separate. |
| Energy | Energy at that distance. Read the unit, such as foot-pounds (ft-lb) or joules (J); it is not another velocity value. |
| Trajectory / path | Check the stated reference line, units and zero. A path relative to the line of sight is not a generic drop value for every setup. |
| Wind drift | Read the specified wind speed and direction with the displacement. A stated crosswind is a table condition, not a forecast. |
A ballistic coefficient belongs with its reference model and any stated velocity conditions. Hornady publishes separate G1 and G7 values and explains that BC can vary with velocity. Do not use a coefficient without checking which model and bullet it describes. See the Hornady source.
Read the zero distance, sight height, wind, atmosphere, and test-barrel notes wherever the publisher supplies them. Record missing details as not stated. Do not borrow conditions from a different product or assume a zero from a table's name. If labels or footnotes conflict, ask the publisher rather than choosing the interpretation that fits.
Keep the product URL or catalog edition, page or table locator, and review date with the figures. A manufacturer's published table does not by itself establish that every value was physically measured. Changing inputs in a calculator creates a separate calculated result; it does not change the manufacturer's publication.
Sources checked . This reading guide does not replace the publisher's instructions or establish firearm compatibility.