AmmunitionCartridges

.30-378 Wby. Mag.

Initially a wildcat cartridge developed by Roy Weatherby in 1959 at the request of the United States Army. This white-hot cartridge is based on the .378 necked down to .30 caliber and packed with powder. Originally billed as the world’s fastest .30 caliber cartridge, it will push a .30 caliber bullet more than 3,500 feet per second. Reintroduced as a Weatherby® production cartridge in 1996.

.30-378 Weatherby® Magnum is available in Mark V® models: Accumark (RH and LH), Accumark RC, and Fibermark Composite.

20 cartridges per box.

This product is not eligible for overnight or 2-day shipping.

$146.00
CaliberWeight GrainsBullet TypeSuggested UsageB/CPrice 
.30-378 Wby.130Barnes TTSXM.350$159.00Out of stock
.30-378 Wby.165Barnes TSXMB.398$159.00Out of stock
.30-378 Wby.165BSTM.475$146.00Add to Cart
.30-378 Wby.180BSTM.507$146.00Out of stock
.30-378 Wby.180AccubondM.507$146.00Out of stock
.30-378 Wby.180Barnes TSXMB.453$159.00Out of stock
.30-378 Wby.200PartitionMB.481$159.00Add to Cart

USAGE: V - Varmint; M - Medium Game (Deer, Sheep, Pronghorn, Black Bear); B - Big Game (Elk, Moose, Grizzly); A - African Big Game (Elephant, Cape Buffalo, Rhino, Lion)
BULLET TYPE: SP - Spire Point; Rn-EX - Round Nose-Expanding; FMJ - Full Metal Jacket; Barnes TSX - Barnes® TSX™; Barnes TTSX - Barnes® TTSX™; Partition - Nosler® Partition® Flat Base; BST - Nosler® Ballistic Tip®; Accubond - Nosler® Accubond®; Spitzer - Norma® Spitzer

Ballistics Specs PDF

Trajectory Comparison

.224 Wby.
Bullet B/C Path of Bullet
(Above or below line-of-sight of rifle scopes mounted 1.5" above bore)
Wt. Grains Bullet Type 100 Yds 200 Yds 300 Yds 400 Yds 500 Yds
55 SP .235 2.80 3.70 0.00 -9.80 -27.90
.240 Wby.
Bullet B/C Path of Bullet
(Above or below line-of-sight of rifle scopes mounted 1.5" above bore)
Wt. Grains Bullet Type 100 Yds 200 Yds 300 Yds 400 Yds 500 Yds
85 Barnes TSX .382 2.60 3.30 0.00 -8.00 -21.60
87 SP .327 2.70 3.40 0.00 -8.40 -23.30
95 BST .379 2.70 3.50 0.00 -8.40 -22.90
100 SP .381 2.80 3.50 0.00 -8.40 -23.00
100 Spitzer .302 3.60 4.40 0.00 -11.10 -30.70
100 Partition® .384 2.80 3.50 0.00 -8.40 -22.90

Energy Comparison

.224 Wby.
Bullet B/C Energy (Foot-Pounds)
Wt. Grains Bullet Type Muzzle 100 Yds 200 Yds 300 Yds 400 Yds 500 Yds
55 SP .235 1627 1244 944 705 516 370
.240 Wby.
Bullet B/C Energy (Foot-Pounds)
Wt. Grains Bullet Type Muzzle 100 Yds 200 Yds 300 Yds 400 Yds 500 Yds
85 Barnes TSX .382 2448 2075 1753 1475 1233 1024
87 SP .327 2397 1977 1622 1323 1069 855
95 BST .379 2467 2087 1759 1475 1229 1017
100 SP .381 2576 2180 1839 1544 1287 1065
100 Spitzer .302 2274 1836 1470 1165 911 703
100 Partition® .384 2576 2183 1844 1550 1294 1073

Velocity Comparison

.224 Wby.
Bullet B/C Velocity (Feet per Second)
Wt. Grains Bullet Type Muzzle 100 Yds 200 Yds 300 Yds 400 Yds 500 Yds
55 SP .235 3650 3192 2780 2403 2056 1741
.240 Wby.
Bullet B/C Velocity (Feet per Second)
Wt. Grains Bullet Type Muzzle 100 Yds 200 Yds 300 Yds 400 Yds 500 Yds
85 Barnes TSX .382 3500 3222 2962 2717 2484 2264
87 SP .327 3523 3199 2898 2617 2352 2103
95 BST .379 3420 3146 2888 2645 2414 2195
100 SP .381 3406 3134 2878 2637 2408 2190
100 Spitzer .302 3200 2875 2573 2290 2025 1780
100 Partition® .384 3406 3136 2882 2642 2415 2199

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