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The .378 Weatherby Magnum was introduced in 1953 as a replacement for the previous .375 Wby. 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 Mark V Accumark Stainless Bolt Action Rifle - 30-378 Weatherby Magnum - If you are looking for a quality, craftsmen built Weatherby Mark V and want new features for rugged durability and long-range accuracy look no further than the Mark V Accumark. NOSLERCUSTOM 338-378 WEATHERBY MAGNUM AMMUNITION . Stay Connected. Most orders ship within 24 hours (excludes firearms). Weatherby’s rich heritage began in 1945 located in Southern California. A true family business operated by third-generation leader Adam Weatherby headquartered in Sheridan, Wyoming. The .338-378 Weatherby Magnum started out as the wildcat cartridge, .338-378 Keith-Thomson Magnum during the early 1960s.Keith and Thomson are Elmer Keith and R.W. Photo by Michael Patrick McCarty . Careful handloading – checking for bullet jacket concentricity, weighing of brass and bullets, uniformity of case length and overall cartridge length, choice of components, seating of bullet – can all increase the accuracy of the cartridge. All ammunition is shipped domestic ground and an adult signature is required. Price: $3900 Description: Simply put, the 30-378 Weatherby Magnum is the “Mac Daddy” caliber. The cartridge retains enough energy for deer-sized game at distances over 1,000 yd (910 m), and has enough retained energy for elk and moose-sized game at a distance of over 700 yd (640 m).[4]. Both of these cases are high quality, and the cost of firing these big rifles means that any cost savings on brass is negligible. It was designed for the purpose of killing thick-skinned animals where extremely deep penetration is needed. Reloading data for 378 WEATHERBY MAGNUM. Hammond rifles and H-S Precision were among the several custom gun manufacturers who chambered and built rifles long before Weatherby got around to releasing the rifle to the public. Products listed on our website are in stock and ready to ship. The .30-378 Weatherby Magnum Mark V with Synthetic Stock & Bipod. $86.95. The recommended bore diameter is .3005 in (7.63 mm) and groove diameter is .3080 in (7.82 mm) with each groove having an arc width of .118 in (3.0 mm). 338-378 Weatherby Magnum Rifle Cartridge. The 375 Wby Mag is simply the 375 H&H fire-formed to greater capacity by straightening out the cartridge walls. The .378 Weatherby Magnum was designed by Roy Weatherby in 1953. 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: OUT OF STOCK (0) WBY 30-378WBY MKV TACMRK Black 28 DBM BRK. 338-378 Weatherby Magnum 225 Grain Buy Now. JaJaJa! TECHNICAL INFORMATION: We achieved best results with slow powders like H-1000 and Viht N165. Price: $3900 Description: Simply put, the 30-378 Weatherby Magnum is the “Mac Daddy” caliber. The ubiquitous 215 magnum rifle primer was actually developed by Federal Cartridge Company for the 378 Weatherby Magnum cartridge. Rifles Weatherby 300 Magnum y 378 Magnum; la diferencia del retroceso (patada) es brutal; casi me saca de cuadro! This rifle will easily deliver over 1200 foot lbs. It was an original belted magnum design with no parent case, inspired by the .416 Rigby and headspacing of the belted .375 H&H Magnum. Chambered in .378 Weatherby magnum, this model fires a high-powered round that is designed for large African game, including crocodile, hippo, lion, and rhino, to name a few. Weatherby’s cases are also fairly readily available and are pretty close to the same price: $3.50/case for 338 Lapua vs $3.50/case for Weatherby 338-378 depending where you pick them up from. The United States Army’s Redstone Arsenal requested a rifle cartridge that could develop 6,000 ft/s (1,800 m/s) for the effects of light bullets against armor. 8:00 a.m. to 5:00 p.m. (MDT), Visitor/Service Center ! .30-378 Weatherby Magnum History Based on the giant .378 Weatherby case, the .30-378 Weatherby was designed as a wildcat cartridge by Roy Weatherby in … [3] It was an original belted magnum design with no parent case, inspired by the .416 Rigby and headspacing of the belted .375 H&H Magnum. Nosler 30-378 Weatherby Magnum, 180gr AccuBond, Box of 20. I'm looking at either a 375 H&H Mag or the 378 Weatherby. Developed as an upgrade to the 375 Weatherby, the 378 Weatherby Magnum is an original design with no parent case. Rifles Weatherby 300 Magnum y 378 Magnum; la diferencia del retroceso (patada) es brutal; casi me saca de cuadro! If you want just to “plink” around, 0,5″ groups of 3 shots at 100 yards are not uncommon if you do reloading with Barnes TSX bullets. Must be 18 or older to purchase rifle ammunition. It is currently the highest velocity .30 caliber factory ammunition available. Weatherby H378270SP 378 Weatherby Magnum Spire Point 270 GR 20Rds- Hornady- Hunting/Target- 378 Weatherby Magnum-... SKU: SPS-68730 Availability: In Stock [2] The cartridge was developed in response to a US Army military contract in 1959. Located minutes from public hunting access in the Bighorn Mountains, and endless grassland prairies. .30-378 Weatherby Magnum Rifles (7 Products) Filter By . $6.00. "Bob" Thomson. 6.5x300 weatherby magnum 7 rem mag 7mm 7mm 08 remington ... 30-378 weatherby magnum bolt action 3+1 rounds 26" barrel 8.3 lbs. Look no further for your .378 Weatherby Magnum ammunition! Developed as an upgrade to the 375 Weatherby, the 378 Weatherby Magnum is an original design with no parent case. My favorite rifle. The 378 Weatherby Magnum was intended to replace the 375 Weatherby Magnum, which did not yield enough additional power over the 375 H&H. 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. 338-378 Weatherby Magnum: $1,959.99. The .378 Weatherby Magnum was designed by Roy Weatherby in 1953. Exit holes like the bottom of a beer stud. The .338-378 Weatherby Magnum started out as the wildcat cartridge, .338-378 Keith-Thomson Magnum during the early 1960s.Keith and Thomson are Elmer Keith and R.W. Most orders ship within 24 hours (excludes firearms). Find your best price for 378 Wby Mag Ammo | Best 378 Wby Mag Ammunition - AmmoSeek.com Search Engine 2020 Chambered in .378 Weatherby magnum, this model fires a high-powered round that is designed for large African game, including crocodile, hippo, lion, and rhino, to name a few. I know I will. Nosler 10235 Rifle 30-378 Weatherby Magnum Brass 25 Per Box 12% OFF! N/A. The 215 magnum rifle primer was developed by Federal specifically for this round. However, when launching 30 gr (1.9 g) bullets which are extremely light for caliber as the Redstone Arsenal contract specified, required the use of relatively faster propellants. Stay Connected. 30-378 Weatherby Magnum. [7] It is also the flattest-shooting .30 caliber factory ammunition available. Mag. 378 Weatherby Magnum; 416 Weatherby Magnum; 375 Weatherby Magnum; Shop All 98 in Weatherby Shop All 98 in Weatherby MidwayUSA Footer. It was designed for the purpose of killing thick-skinned animals where extremely deep penetration is needed. Even the standard slow burning powder of the time IMR4350 which was used in the Weatherby line of cartridges was too fast to take advantage of the case capacity of the .30-378 Weatherby cartridge. [3] In 1995 Layne Simpson built a rifle chambered for the .30-378 Weatherby and developed loading data and passed the data on to Norma Precision to provide a basis for their factory loaded ammunition.[5]. The .30-378 Weatherby Magnum is truly a high performance hunting caliber. The cartridge was developed in response to a US Army military contract in 1959. Dependent on the ammunition chosen the cartridge has a maximum point blank range of over 400 yd (370 m). per page . Another Weatherby wildcat, first introduced in the 1960s. JaJaJa! When Life is on the line. COMPARE RESET (0) Weatherby MAP01N303WL8B Mark V Accumark Pro 30-378 Wthby Mag 3+ $ 2,449.00 (0) Weatherby MK-V ACUM BA 30-378WBY 26B. Despite its unusual nomenclature, the .378 uses standard .375" bullets. Abbreviated Name: 338-378 Wby Mag . We do not accept returns on ammunition. The result was that performance advantage that was created by the volume of the .30-378 Weatherby was minimal over the competing .300 Weatherby Magnum cartridge, which had been introduced 25 years earlier. Bullet: Nosler Partition 260 gr: Bullet weight: 16.8 g / 260 gr: B.C: 0.314: C.O.L: 90.5 mm / 3.563 # 44850: Gunpowder Charge Weight Velocity m/s Velocity fps; ... 7 mm Blaser Mag. Compare 30-378 weatherby magnum ammo from the top online retailers to find the lowest price. It was an original belted magnum design with no parent case, inspired by the .416 Rigby and headspacing of the belted .375 H&H Magnum. 1458865 MPN: MAMS240WR4O. of energy and a bullet velocity well over 1800 feet per second at 1000 yards, with minimal recoil. $119.95. [5], However, the shooting public had to wait until 1996 for Weatherby to release the cartridge. Like all Weatherby rifle cartridges the .30-378 Weatherby was designed to be a high performance hunting cartridge. [4] The cartridge was created by necking down the .378 Weatherby Magnum to accept a .308 in (7.8 mm) diameter bullet. Foundry Outdoors carries the best selection of 30-378 Weatherby Magnum ammo online. N/A. Add to cart. This product is no longer available. 6.5x300 weatherby magnum 7 rem mag 7mm 7mm 08 remington ... 30-378 weatherby magnum bolt action 3+1 rounds 26" barrel 8.3 lbs. Find a Dealer Description Ballistics Reviews(9) Description. The resulting case held a greater volume than any previous commercial cartridge. 9:00 a.m. to 4:00 p.m. (MDT), Written inquires can be mailed to: 338-378 Weatherby Magnum: $1,959.99. 338-378 Weatherby Magnum Rifle Cartridge. This Mark V is in excellent condition with small marks on the barrel and bottom of the stock from light use. Its massive case holds so much powder that Federal designed its super-hot 215 primer to handle the load. Roy Weatherby’s 378 delivers 34 percent more energy at the muzzle than the powerful 375 H&H Magnum. Soon after the .30-378 Weatherby was designed it was adopted by the benchrest shooting community. Always hit the mark with a MidwayUSA Gift Certificate. The cartridge held the world record for accuracy at 1,000 yards (910 m) for over thirty years. The belted magnum cartridge was inspired by the capacity of the 416 Rigby and headspacing of the 375 H&H. This product is no longer available. Reloading data for 378 WEATHERBY MAGNUM. The .378 Weatherby Magnum was designed by Roy Weatherby in 1953. 7 mm Rem. Since 1955, the 378 has become one of the world’s most popular cartridges for the largest of big game animals. 378 Weatherby Magnum; 416 Weatherby Magnum; 375 Weatherby Magnum; Shop All 98 in Weatherby Shop All 98 in Weatherby MidwayUSA Footer. buy from Nordic Marksman. Despite its unusual nomenclature, the .378 uses standard .375" bullets. 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