Cartridge

.338-378 Weatherby Magnum

0.338" (8.6mm) · .338-378 Wby Mag · centerfire

3 factory loads from 1 manufacturer, on 3 projectiles.

Factory loads

3

Bullet weight

225–262gr

Muzzle velocity

2950–3180 fps

Muzzle energy

5051–5197 ft·lb

Bullet Drop (inches)

One load from each of the 3 most-loaded bullet weights, plotted from the bore line to 1000 yards in ICAO sea-level air — measured from the muzzle rather than from a sighted-in rifle, so these curves compare the loads against each other and are not holdover figures. Compare these at your own conditions

Weights are the ones with the most factory loads; within each, the load visitors compare most often. See every load

Bullet weights loaded

  • 225gr1
  • 250gr1
  • 262gr1

3 bullet weights across 3 factory loads.

Weatherby

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.338-378 Wby Mag · 225gr · TTSX

MV: 3,180fps
BC: 0.514 G1
Energy: 5,051ft-lbs
Type: Hunting
Details

Weatherby

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.338-378 Wby Mag · 250gr · Partition

MV: 3,060fps
BC: 0.473 G1
Energy: 5,197ft-lbs
Type: Hunting
Details

Weatherby

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.338-378 Wby Mag · 262gr · Hammer Hunter

MV: 2,950fps
BC: 0.625 G1
Energy: 5,062ft-lbs
Type: Hunting
Details