Barrett MTAC 660gr Precision Match
- Cartridge
- .50 BMG
- Bullet weight
- 42.80 g
- Reference velocity
- 853 m/s
- Muzzle energy
- 15571 J
Specification
The load, and the figures its drawing is made from
IdentityWho makes it, and what it is for.
- Designation
- Barrett Precision
- Maker
- Barrett Firearms
- Country of origin
- United States
- Introduced
- 2020
- Military load
- No
- Widely available
- Yes
ProjectileThe figures the drawing and the solver start from.
- Bullet type
- MTAC
- Cartridge
- .50 BMG
- Bullet diameter
- 12.98 mm
- Bullet weight
- 42.8 g (660.5 gr)
- Sectional density
- 0.362
- Ballistic coefficient (G1)
- 0.777
- Ballistic coefficient (G7)
- 0.39
- Reference velocity
- 853 m/s (2799 ft/s)
- Reference barrel
- 813 mm
- Velocity retention exponent
- 0.12
Ballistics
Downrange, solved
Solved at the reference barrel of 813 mm from the G1 coefficient and the load's velocity retention. A different barrel gives a different curve.
At the muzzle
What leaves the barrel
MuzzleThe solver’s figures at the reference barrel, where the curve starts.
- Muzzle energy
- 15571 J
- Effective range
- 527 m
- Momentum
- 36.51 kg m/s
- Taylor knockout factor
- 134.9
- Hatcher relative stopping power
- 2120
- Energy density
- 11767.2 J/cm²
Downrange
Point by point
The same solution as the chart, at each distance the solver reports.
| Distance | Velocity | Energy | Drop | Time of flight | Mach |
|---|---|---|---|---|---|
| 0 m | 853 m/s | 15571 J | 0 cm | 0 s | 2.49 |
| 50 m | 848 m/s | 15394 J | 1.7 cm | 0.059 s | 2.47 |
| 100 m | 843 m/s | 15218 J | 6.8 cm | 0.118 s | 2.46 |
| 200 m | 833 m/s | 14866 J | 27.6 cm | 0.237 s | 2.43 |
| 300 m | 824 m/s | 14516 J | 62.8 cm | 0.358 s | 2.40 |
| 400 m | 814 m/s | 14169 J | 113 cm | 0.48 s | 2.37 |
| 500 m | 804 m/s | 13822 J | 178.8 cm | 0.604 s | 2.34 |
| 600 m | 794 m/s | 13477 J | 260.6 cm | 0.729 s | 2.31 |
| 800 m | 773 m/s | 12790 J | 475.2 cm | 0.984 s | 2.25 |
| 1000 m | 752 m/s | 12107 J | 762.1 cm | 1.246 s | 2.19 |
API
The call that returns this record
The same fields, in the same units, from the same endpoint the page reads.
curl --request GET \ --url 'https://api.gunspec.io/v1/ammunition/barrett-mtac-660' \ --header 'X-API-Key: your_key'