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M33 Ball

Drawing of the M33 Ball bullet
Cartridge
.50 BMG
Bullet weight
42.80 g
Reference velocity
887 m/s
Muzzle energy
16837 J

Specification

The load, and the figures its drawing is made from

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IdentityWho makes it, and what it is for.

Designation
M33
Maker
Lake City AAP
Country of origin
United States
Introduced
1954
Military load
Yes
Widely available
Yes

ProjectileThe figures the drawing and the solver start from.

Bullet type
FMJ
Cartridge
.50 BMG
Bullet diameter
12.98 mm
Bullet weight
42.8 g (660.5 gr)
Sectional density
0.362
Ballistic coefficient (G1)
0.62
Ballistic coefficient (G7)
0.34
Reference velocity
887 m/s (2910 ft/s)
Reference barrel
1143 mm
Velocity retention exponent
0.12

Ballistics

Downrange, solved

Solved at the reference barrel of 1143 mm from the G1 coefficient and the load's velocity retention. A different barrel gives a different curve.

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0 m887 m/s

0225450675900546 m0501002003004005006008001000

At the muzzle

What leaves the barrel

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MuzzleThe solver’s figures at the reference barrel, where the curve starts.

Muzzle energy
16837 J
Effective range
546 m
Momentum
37.96 kg m/s
Taylor knockout factor
140.3
Hatcher relative stopping power
2292
Energy density
12723.9 J/cm²

Downrange

Point by point

The same solution as the chart, at each distance the solver reports.

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DistanceVelocityEnergyDropTime of flightMach
0 m887 m/s16837 J0 cm0 s2.59
50 m882 m/s16629 J1.6 cm0.057 s2.57
100 m876 m/s16423 J6.3 cm0.113 s2.55
200 m865 m/s16011 J25.6 cm0.228 s2.52
300 m854 m/s15604 J58.3 cm0.345 s2.49
400 m843 m/s15198 J104.9 cm0.463 s2.46
500 m831 m/s14795 J166.2 cm0.582 s2.42
600 m820 m/s14395 J242.5 cm0.703 s2.39
800 m797 m/s13600 J443.1 cm0.95 s2.32
1000 m774 m/s12812 J712.3 cm1.205 s2.26

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/m33-ball' \  --header 'X-API-Key: your_key'