per page. Abbreviated Name: 338-378 Wby Mag That means it is a whopping big cartridge case. Shopping with us is absolutely safe - you never have to worry about credit card safety when shopping here... © 2020 Copyright,entire contents by CTD, Inc. Cheaper Than Dirt! 8:00 a.m. to 5:00 p.m. (MDT), Visitor/Service Center Weatherby's .30-378 is the .378 Weatherby Magnum necked down to .30 caliber and can drive a 180-grain bullet in excess of 3,400 fps. PO Box 6630 .378 Wby Mag (Weatherby Magnum) ammo rifle AmmoSeek.com Comparison shop for in-stock ammunition, guns, mags, and reloading at the lowest prices … HITS HARDER. A true family business operated by third-generation leader Adam Weatherby headquartered in Sheridan, Wyoming. .30-378 Wby Mag (Weatherby Magnum) ammo rifle AmmoSeek.com Comparison shop for in-stock ammunition, guns, mags, and reloading at the lowest prices from over 100 online retailers all in one place: Ammo Description. The ubiquitous 215 magnum rifle primer was actually developed by Federal Cartridge Company for the 378 Weatherby Magnum cartridge. In Stock Item #: WYH303220ELDX $5.45 per round Volume Discounts Available . I’m cleaning my reloading room and found some 378 Weatherby brass. Find Bulk 338-378 weatherby magnum ammunition fast and … Hornady Precision Hunter 30-378 Weatherby Mag 220 Grain ELD-eXpanding (Case) $799.99. In a similar manner to the .338 Lapua, the .338-378 employs a full .579” diameter case rim rather than a standard magnum rim diameter of .532” as is found on the likes of other common magnums including the rebated rim RUM and WSM cartridge designs. $112.99. 338-378 Weatherby Magnum Rifle Cartridge. The .378 Weatherby Magnum was designed by Roy Weatherby in 1953. While we have went to great lengths to make sure that it's as accurate as possible this rendering should not be used to generate specs for casings. Stay Connected. OR IS MORE ACCURATE.™. Our favorites for 338/378 Weatherby Magnum ammo are: Barnes 225gr Tipped TSX & TSX, 250gr TSX, Nosler 225gr & 250gr Accubond, Swift 225gr & 250gr A-Frame. Set Ascending Direction. 9:00 a.m. to 4:00 p.m. (MDT), Written inquires can be mailed to: Free FedEx Option* (0) Hornady 82210 Custom 30-378 Weatherby Magnum 180 GR GMX 20 Bx/ OUT OF STOCK (0) American PH .30-378 Weatherby … Add … HORN AMMO 30-378 220GR ELD-X 20/10 $ 102.00. The place to view ammo prices across Canada. The cartridge generates bullet velocities approaching 3,000 feet per second and muzzle energies nearing 6,000 foot pounds. While still unreleased to the public, the cartridge went on to set world records for accuracy including the first ten 10X in 1,000 yards (910 m) benchrest shooting. Weatherby’s intention is constant progression … 2 Items . Weatherby - 338-378 Wby Magnum - 225 Gr - Select Plus - Ultra-High Velocity - 20ct Compare 338-378 weatherby magnum ammo from the top online retailers to find the lowest price. Find 338-378 Weatherby Mag Ammo for sale, in-stock and ready to ship at Ammo Freedom. The .338-378 Weatherby is currently the most powerful .338” factory cartridge. Weatherby Customer Service representatives are available to assist you: Monday through Friday Products listed on our website are in stock and ready to ship. The 215 magnum rifle primer was developed by Federal specifically for this round. Performance like that make the round a lethal dose for all North American big game species. It was initially developed by Roy Weatherby under a military contract seeking to design an anti-personnel and an anti-material round. Sort By. Bulk Ammunition on sale, including 338-378 Weatherby Mag Rifle Rounds. Loads were to be developed to exceed 4000 FPS & as close to 5000FPS*. Developed as an upgrade to the 375 Weatherby, the 378 Weatherby Magnum is an original design with no parent case. 30-378 Weatherby Mag Ammo. Where to find brands like and Weatherby. Sheridan, WY 82801 USA, We are located at 1550 Yellowtail Drive, Sheridan WY 82801. Located minutes from public hunting access in the Bighorn Mountains, and endless grassland prairies. Sold my 378 so I no longer need. The 378 Weatherby Magnum cartridge also has the double radius shoulder design found on the first and smaller proprietary line of Weatherby magnum cartridges. Find your best price for 378 Wby Mag Ammo | Bulk 378 Wby Mag Ammunition - AmmoSeek.com Search Engine 2020 Weatherby’s move to Wyoming is an exciting step towards continual opportunity for innovation. While experimenting with armor plating made of various materials during the 1960s, the U.S. government needed to determine its resistance to damage by high-speed projectiles. Buy bulk 338-378-weatherby-mag ammo for sale at Short Round Supply Co. The .30-378 Weatherby Magnum is a .30 caliber, belted, bottle-necked rifle cartridge. Enjoy great deals on cheap in stock 338-378-weatherby-mag rifle ammunition and get fast shipping! 30-378 Weatherby Magnum Produced 1996 The 30-378 was designed & tested in late 1959 – early 1960 by Weatherby at the request of the United States Army for the Redstone Arsenal in Huntsville, Alabama. We use cookies on this site to improve your experience. $6.65 PPR (0) HSM Trophy Gold 30-378 Weatherby Magnum Boat Tail Hollow Poi $ 133.00. Foundry Outdoors carries the best selection of 30-378 Weatherby Magnum ammo online. Our favorites for 378 Weatherby Magnum ammo are: Cape Buffalo – Swift A-Frame, Barnes TSX, Woodleigh Weldcore, Elephant – Nosler Dangerous Game Solid Lion & Leopard – Woodleigh Weldcore, Nosler Accubond & Partition North American Big Game – Nosler Partition & Accubond, Woodleigh Weldcore Muzzle velocities w/26″ Barrel as follows: $108.99. The cartridge can hold upwards of 7.13 g (120 gr) of powder. While experimenting with armor plating made of various materials during the 1960s, the U.S. government needed to determine its resistance to damage by high-speed projectiles. Weatherby’s rich heritage began in 1945 located in Southern California. Compare 30-378 weatherby magnum ammo from the top online retailers to find the lowest … Hornady 82214 Precision Hunter 30-378 Weatherby Magnum 220 GR ELD-X - 20rd Box Your Price: $105.16 ($5.258 per round) In stock Purchase Now » View Details » We have a wide collection of quality ammunition for handgun ammo, rifle ammo, shotgun ammo & rimfire ammo, including a full line of 30-378 Weatherby Magnum. 200 rounds / $4.00 per round. Buy the best cheap tobacco-free Weatherby Ammo products online. Note: Our Current Ship Time Is 1-3 Business Days. Home ; Ammunition ; Rifle ; 30-378 Weatherby Mag; View as Grid List. Sign Up for Exciting Eblast™ Promotions Subscribe The Perfect Gift! 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Good deal with reviews - no coupon codes required upgrade to the 375 Weatherby, the Weatherby...