.338 Norma Magnum — ballistic table
1 load from the pointMoA database with drop, wind drift and energy computed by the app's engine. Manufacturer data, identical conditions for the whole calibre — the rows can be compared with one another.
Reference conditions
Zero at 100 m, line of sight 50 mm above the bore, 15 °C, 1013.25 hPa, 50 % humidity, wind 4 m/s from 3 o'clock (full value). Muzzle velocity and ballistic coefficient from the manufacturer's data sheet; the velocity was measured in the manufacturer's test barrel — a shorter barrel gives less.
Drop, drift and energy
| Load | Weight (gr) | V0 (m/s) | BC | Drop 100 m (cm) | Drop 200 m (cm) | Drop 300 m (cm) | Drop 400 m (cm) | Drop 500 m (cm) | Drift 500 m (cm) | E 500 m (J) | Calculator |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Norma Match King 300 grHPBT · test barrel 660 mm · manufacturer data sheet | 300 | 810 | 0.768 G1 | 0.0 | -11.5 | -41.3 | -91.4 | -163.9 | -34.1 | 3804 | Open in the calculator |
The table is indicative: it is computed from catalogue data under reference conditions, not from your barrel and your lot of ammunition. Verify the trajectory on the range before relying on it.
Firearms in this calibre from the database
2 firearms from the app database. Barrel length and twist rate as stated by the manufacturer or the retailer; a dash means no data.
| Model | Barrel | Twist rate |
|---|---|---|
| Barrett MK 22 27" | 686 mm | 1:9.4" |
| Barrett MRAD 26" | 660 mm | 1:9.4" |
The pointMoA app
This load in your Armory — in the app
In the Armory of the pointMoA app you pick the load from this same database: the list narrows to the calibre and the ammunition card fills in weight, velocity and ballistic coefficient by itself. You compute the trajectory for your own firearm, check your zero with the zeroing assistant and save the result in the log — no account and no Internet.