By necking down the .378 Weatherby Mag and fire forming it in the rifle chamber, the new .338-378 was born. Please note, the following information reflects the estimated average ballistics for each caliber and does not pertain to a particular manufacturer, bullet weight, or jacketing type. [13], Any Shot You Want, The A-Square Handloading Manual, pp. The belted magnum cartridge was inspired by the capacity of the 416 Rigby and headspacing of the 375 H&H. The PowerRank is an estimation of the cartridge power. Weatherby Select Plus Ammunition, 300 Weatherby, 180 Grain, Barnes Tipped Triple Shock X, 20 Round Box B300180TTSX. The cartridge was developed in response to a US Army military contract in 1959. The following ammunition cartridge ballistics information and chart can be used to approximately compare .300 Weatherby Magnum vs .300 Winchester Magnum ammo rounds. Your Price: $110.14 ($5.507 per round) In stock Purchase Now » View Details » Weatherby H303220ELDX 30-378 Weatherby 220 ELD-X - … ... 30-378 Weatherby Mag Ammo. Home; My Account. Written inquires can be mailed to: Weatherby, Inc. PO Box 6630 Sheridan, WY 82801 USA It was designed for the purpose of killing thick-skinned animals where extremely deep penetration is needed. Find 338-378 Weatherby Mag Ammo for sale, in-stock and ready to ship at Ammo Freedom. For the fastest delivery, select Express Shipping at checkout. [9][10] Some of the .378 Weatherby Magnum wildcat cartridges are shortened versions, like the .30-378 Arch (7.62 mm) and the .460 Short A-Square (11.63 mm). Today, those same performance qualities are every bit a part of Weatherby cartridges. Look no further for your .378 Weatherby Magnum ammunition! Cartridge Type: Rifle Height: 2.549" Width: 0.531" Average FPS: 3199 Average Energy: 3476 Average Gr: 153 Recoil: 2.2 Power Rank: 4.89 of 20 . Filter Products Save & Close. 378 Weatherby Mag ammo cartridges typically feature bullets ranging from 200 grain to 300 grain, in both soft points and solid points. Great care has been given by Hornady engineers to develop superior, match­-accurate hunting loads that allow the ELD­-X ® bullet to achieve its maximum ballistic potential. Your Price: $110.14 ($5.507 per round) In stock Purchase Now » View Details » Weatherby H303220ELDX 30-378 Weatherby 220 ELD-X - … The .30-378 Weatherby Magnum is a .30 caliber, belted, bottle-necked rifle cartridge. Extremely powerful and flat shooting. Ultra-high velocity, magnum ammunition is how Roy Weatherby got started in the 1940s. The .460 Weatherby Magnum was designed as an African dangerous game rifle cartridge for the hunting of … The .460 Weatherby Magnum is a belted, bottlenecked rifle cartridge, developed by Roy Weatherby in 1957. Find your best price for 378 Wby Mag Ammo | Bulk 378 Wby Mag Ammunition - AmmoSeek.com Search Engine 2020 Brand. The .460 Weatherby Magnum was designed as an African dangerous game rifle cartridge for the hunting of … Log In Register. Weatherby Select & Select Plus Ammunition - Duration: ... Remington 700 .300 Weatherby Magnum Recoil - Duration: 4:30. With a 250 grain bullet and a rifle with 28 inch barrel, the 338-378 Mag can reach muzzle velocities of 933 meters per second. Designed to replace the 375 Weatherby Magnum, deep penetration and bone smashing power are the calling cards of the 378. 30-378 Weatherby Mag 220 gr ELD-X® Precision Hunter® Item #82214 | 20/Box . The parent case is a .300 H&HMagnum by expanding it to maximum capacity. 300 Blackout/Whisper Ammo. $72.99. Bullet Style: ABLR Use: Deer / Elk / Moose Sized Game . Weatherby Select Plus Ammunition, 300 Weatherby, 180 Grain, Barnes Tipped Triple Shock X, 20 Round Box B300180TTSX. Gunpowder Charge Weight Velocity m/s Velocity fps; Norma MRP: Max 114.2 Min 108.0: 944 870: 3097 2854 .30-378 Weatherby Magnum Ammunition (10 Products) Filter By . COMPARE RESET ... HSM Trophy Gold 30-378 Weatherby Magnum Boat Tail Hollow Poi $ 133.00. The .378 Weatherby outshone the former cartridge and by 1960 the .375, though very … Great care has been given by Hornady engineers to develop superior, match­-accurate hunting loads that allow the ELD­-X ® bullet to achieve its maximum ballistic potential. Filter Products Save & Close. 30-378 Weatherby Magnum Bullet Style: ABLR Use: Deer / Elk / Moose Sized Game . *Casing image above is an artist rendering and not a real photo of .378 Weatherby Magnum Ballistics cartridge. Weatherby N303200ACB 30-378WBY 200 Accubond - 20rd Box. The .30-378 WM was introduced in 1996 by narrowing the neck of the .378 WM. Description. Add to Cart. I like this quote best from Weatherby himself when it comes to the .378 Weatherby Magnum: "Because there was a definite need for a large bore, heavy bullet traveling at high velocity, we developed the .378 Magnum. The following ammunition cartridge ballistics information and chart can be used to approximately compare .300 Weatherby Magnum vs .338 Lapua Magnum ammo rounds. 30-378 Weatherby Magnum 210 Grain Information | Ballistics. Cartridge Type: Height: 2.913" Width: 0.58" Average FPS: 3011 Average Energy: 5696 Average Gr: 283 Recoil: 3.95 *Casing image above is an artist rendering and not a real photo of .378 Weatherby Magnum Ballistics cartridge. .30-378 WM was introduced as a Weatherby proprietary cartridge in 1953 the potent.378 Weatherby, the 378 Weatherby. Currently chambered in three variations of the Weatherby Mk bottlenecked rifle cartridge for long-range big... Added to the point that the Kirby Allen 7mm exists and the is. 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