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Hornady Custom XTP 300gr JHP

Drawing of the Hornady Custom XTP 300gr JHP bullet
Cartridge
.44 Remington Magnum
Bullet weight
19.44 g
Reference velocity
351 m/s
Muzzle energy
1198 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
9088
Maker
Hornady
Country of origin
United States
Introduced
1989
Military load
No
Widely available
Yes

ProjectileThe figures the drawing and the solver start from.

Bullet type
JHP
Cartridge
.44 Remington Magnum
Bullet diameter
10.9 mm
Bullet weight
19.44 g (300.0 gr)
Sectional density
0.232
Ballistic coefficient (G1)
0.245
Reference velocity
351 m/s (1152 ft/s)
Reference barrel
191 mm
Velocity retention exponent
0.28

Ballistics

Downrange, solved

Solved at the reference barrel of 191 mm from the G1 coefficient and the load's velocity retention. A different barrel gives a different curve.

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0 m351 m/s

0100200300400194 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
1198 J
Effective range
194 m
Momentum
6.82 kg m/s
Taylor knockout factor
14.8
Hatcher relative stopping power
62
Energy density
2625.9 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 m351 m/s1198 J0 cm0 s1.02
50 m322 m/s1006 J10.9 cm0.149 s0.94
100 m301 m/s882 J47.1 cm0.31 s0.88
200 m273 m/s723 J213.5 cm0.66 s0.80
300 m251 m/s611 J533.2 cm1.043 s0.73
400 m231 m/s521 J1042.6 cm1.458 s0.67
500 m214 m/s447 J1783.9 cm1.907 s0.63
600 m199 m/s386 J2804.2 cm2.391 s0.58
800 m173 m/s290 J5906.9 cm3.47 s0.50
1000 m149 m/s216 J10916.1 cm4.718 s0.43

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/hornady-custom-xtp-300' \  --header 'X-API-Key: your_key'