30-378 Weatherby Magnum

30-378 Weatherby Magnum

$159.00

In stock

Originally billed as the world’s fastest 30 caliber cartridge, it will push a 30 caliber bullet 3,500 feet per second.
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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 3,500 feet per second. Reintroduced as a Weatherby production cartridge in 1996.

BALLISTICS


Velocity

Bullet TypeBallistic Coefficient@ Muzzle100 Yards200 Yards300 Yards400 Yards500 Yards
165 Grain TTSX 0.442 3450 3186 2937 2702 2479 2266
165 Grain Ballistic Tip 0.475 3500 3275 3062 2859 2665 2480
180 Grain Ballistic Tip 0.507 3420 3213 3015 2826 2645 2471
180 Grain Accubond 0.507 3420 3213 3015 2826 2645 2471
180 Grain TTSX 0.484 3360 3132 2916 2709 2513 2324
200 Grain Partition 0.481 3160 2955 2759 2572 2392 2220

Energy

Bullet TypeBallistic Coefficient@ Muzzle100 Yards200 Yards300 Yards400 Yards500 Yards
165 Grain TTSX 0.442 4362 3719 3161 2675 2251 1882
165 Grain Ballistic Tip 0.475 4488 3930 3435 2995 2603 2253
180 Grain Ballistic Tip 0.507 4676 4126 3634 3193 2797 2441
180 Grain Accubond 0.507 4676 4126 3634 3193 2797 2441
180 Grain TTSX 0.484 4513 3921 3398 2935 3524 2160
200 Grain Partition 0.481 4434 3877 3381 2938 3541 2188

Trajectory

Bullet TypeBallistic Coefficient100 Yards200 Yards300 Yards400 Yards500 Yards
165 Grain TTSX 0.442 2.4 3.1 0.0 -7.4 -19.6
165 Grain Ballistic Tip 0.475 2.4 3.0 0.0 -7.4 -19.5
180 Grain Ballistic Tip 0.507 2.5 3.1 0.0 -7.5 -20.0
180 Grain Accubond 0.507 2.5 3.1 0.0 -7.5 -20.0
180 Grain TTSX 0.484 2.7 3.4 0.0 -8.1 -21.8
200 Grain Partition 0.481 3.2 3.9 0.0 -9.1 -24.3

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2 customer reviews

Average rating
(based on 2 reviews)
Value
Quality
Performance
  1. Expensive but extremely accurate in my setup.

    By Outbackjack August 18, 2015

    Have a MK V in 30-378 set up by Long Range Hunters in WY with a Huskama scope using the 165gr TXS.for my South Dakota 1000 yard rifle. Less than 1' groups at 200 yards and ground pounds everything. I've used it to take whitetail out to a half mile with zero misses and dropped in their tracks. Luckily I purchased five boxes of ammo with gun (when ammo was $15 cheaper) and still have 3+ boxes left after LRH used 14 rounds to set up rifle, 6 on deer and the rest for practice.

  2. Where's the beef?

    By shady04 April 14, 2015

    I have been trying to purchase Weatherby 30-378 130 grain TTSX ammo for months. Why is it so difficult to find? If it's not available at Weatherby.com, there's a problem.

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