Look no further for your .378 Weatherby Magnum ammunition! Thread starter hjl; Start date Mar 21, 2007; Help Support Long Range Hunting : ... Oct 20, 2005 Messages 91 Location Qld, Australia. I'm looking for drop charts with a zero … Regardless of these improvements Roy Weatherby eventually lost interest in his .375. Accuracy and terminal performance are the cornerstones of Hornady ® Precision Hunter ® factory loaded ammunition. Now it starts getting interesting for a lot of shooters at 1,500 yards. Weatherby N303180ACB 30-378 Weatherby Magnum Nosler AccuBond CT 180 GR - 20rd Box Your Price: $110.14 ($5.507 per round) In stock Purchase Now » View Details » Another big issue at ultra-long range, one that is often not considered by most shooters, is retained energy. The barrel is fully free-floated clear back to the action. per page . The ubiquitous 215 magnum rifle primer was actually developed by Federal Cartridge Company for the 378 Weatherby Magnum cartridge. 165 Barnes TTSX B303165TTSX $175 .442 3494 3253 3026 2810 2604 2407 4472 3877 3354 2892 2484 2123 2.5 3.1 0.0 -7.5 -20.2 M 165 Ballistic Tip N303165BST $159 .475 3500 3275 3062 2859 2665 2480 4488 3930 3435 2995 2603 2253 2.4 3.0 0.0 -7.4 -19.5 Regards. According to a Weatherby representative, that is why they do not use a removable box magazine. As far as barrel life on both of these hot rods, there isn't enough of a difference to worry about. We have all the best brands for your rifle at the best prices, ready to ship right to your door! 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 benchrest shooting. Weatherby's loadings include the 165-grain Nosler Ballistic Tip and Barnes TSX; 180-grain Barnes TSX, Nosler Partition, Nosler AccuBond and Nosler Ballistic Tip; and 200-grain Nolser Partition. For more information, visit weatherby.com or call 805-227-2600. Weatherby lists the muzzle velocity of their 250-grain Nosler Partition load at 3,060 fps. 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. NOSLER RIFLES. I handload and I have plenty of brass so that is not a problem. Weatherby N303200ACB 30-378WBY 200 Accubond - 20rd Box. I ordered a rail style scope mount from Evolution Gun Works, Inc. Need Help Filtering. If there is a cartridge that gets it there faster and hits the target harder, then where is the downside? Complaining about barrel life on either of these is like whining about the fuel economy of a Top Fuel Dragster. Trust no other. My guess is the 250-grain and 300-grain bullets that are offered will really make this gun step up and shine. Hodgdon’s online handloading data lists the .338-378 Weatherby with a 250-grain bullet with a statistically identical muzzle velocity of 3,072 fps. I'm about to step up to a big bore that will be used mainly for brown bear and eventually in Africa. Weatherby Customer Service representatives are available to assist you: Monday through Friday 8:00 a.m. to 5:00 p.m. (MDT) Visitor/Service Center 9:00 a.m. to 4:00 p.m. (MDT) Customer Service (307) 675-7840. Boxes, International Addresses, AK, CA, HI, MA, CT, IL, NY nor DC residents. To make this rifle perform for long-range work, both in accuracy and in exterior ballistics, is going to require handloading. I hunted mountain goats there in September of 2015, and if their was ever a caliber made for such a task it is the .30-378 Weatherby Magnum. Despite its unusual nomenclature, the .378 uses standard .375" bullets. Originally billed as the world’s fastest 30 caliber cartridge, it … 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. from a 9 lb rifle. 338 Lapua vs 338-378 Weatherby Ballistics This means a shorter 54-degree rotation to open the bolt, which makes it faster to operate. The ballistic performances of the .30-378 WM based off three grain types for velocity are … Re: 30-378 Weatherby VS 338L I have shot both and own the 30-378. 404 Jeffery.429″ Diameter. 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. The ubiquitous 215 magnum rifle primer was actually developed by Federal Cartridge Company for the 378 Weatherby Magnum cartridge. Weatherby Brass 30-378 Weatherby Unprimed Box of 20 . 416 Remington Magnum 416 Rigby 416 Weatherby Magnum.423″ Diameter. bullet is the key. One of the first calibers we added in these extra-long barrels was the .338 and in a 10″ twist rate. 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. Mar 21, 2007 #2 S. screech Well-Known Member. But, long range shooting is long range shooting regardless if the target is an elk or a steel gong. On the other end of the sniper cartridge spectrum is the .308 Winchester, which is running out of steam at 1,000 yards and is completely outclassed at 1,500 yards. 30-378 Weatherby Mag 220 gr ELD-X® Precision Hunter® Item #82214 | 20/Box . lbs., a 180 grain bullet (SD .271) at a MV of 3,420 fps with ME of 4676 ft. But civilians are not bound by military selection and we can pick the cartridge that works best, not the one that some politicized General says we must use. 378 WEATHERBY MAGNUM The .378 Weatherby Magnum was introduced in 1953 as a replacement for the previous .375 Wby. Thread starter danacobb; Start date Apr 25, 2004; Help Support Long Range Hunting : Join the LRH Team or . Roy Weatherby’s 378 delivers 34 percent more energy at the muzzle than the powerful 375 H&H Magnum. The .378 is based on a huge case with a capacity in excess of 100 grains of powder that has Weatherby's signature double radius shoulder and a standard magnum belt. COMPARE RESET ... HSM Trophy Gold 30-378 Weatherby Magnum Boat Tail Hollow Poi $ 133.00. It is currently the highest velocity.30 caliber factory ammunition available. The 378 Weatherby Magnum cartridge also has the double radius shoulder design found on the first and smaller proprietary line of Weatherby magnum cartridges. The next load has a 225-grain Barnes TSX bullet with a muzzle velocity of 3,180 and a B.C. Bulk Ammunition on sale, including 338-378 Weatherby Mag Rifle Rounds. of 0.606 and a M.V. 458 SOCOM 45-70 1895 Marlin 45-70 Ruger No.1 450 Marlin 458 Winchester Magnum 458 Lott; 460 Weatherby … Shipping: Free to High. The rifle features a Krieger barrel with cut rifling. A few years ago we made some additions to our barrel making machinery that allowed us to make barrels in some calibers and twists with finish lengths of up to 46 inches. For purposes of clarity, I consent to Athlon's collection, storage, processing, and transfer of my Personal Data and Non-Personal Data (as defined in the Privacy Policy) for the purpose of signing up for the email newsletter. Page 1 of 2. The .378 Weatherby Magnum was designed by Roy Weatherby in 1953. Sort By: 7 Item(s) Show. I think the bullet field dresses whatever is left of it! Weatherby factory ballistics for the .30-378 call for a 165 grain bullet (SD .248) at a MV of 3500 fps with ME of 4488 ft. TROPHY GRADE Long Range 30-378 WEATHERBY MAGNUM AMMUNITION . Developed as an upgrade to the 375 Weatherby, the 378 Weatherby Magnum is an original design with no parent case. 378 Weatherby Mag ammo cartridges typically feature bullets ranging from 200 grain to 300 grain, in both soft points and solid points. 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. All ammunition is shipped domestic ground and an adult signature is required. The rifle is, of course, offered in .338-378 Weatherby and, new for 2012, the .338 Lapua. Jan 1, 2013, Stay in the know with the latest from the Tactical-Life newsletter, Ho-Ho-Ho: 7 of the Best Guns From the Movie ‘Die Hard’, 3 Things to Expect From the New ATF Pistol Stabilizing Brace Guidance, WATCH: Testing the Innovative, .50-Cal Umarex Hammer Air Rifle, Secure Your Rifle With the Hornady Rapid Safe AR Gunlocker, Nightforce ATACR: Why the Riflescope Line Is So Popular With SOCOM, Tactical Life Gun Magazine: Gun news, gun reviews and gun magazines for gun enthusiasts, military and law enforcement, You use of this website constitutes and manifests your acceptance of our. 30-378 Weatherby Magnum Rifle Cartridge. I always wanted this gun but everyone told me it was too big but i never thought so. The 338-378 Keith-Thomson Magnum is a quarter of an inch shorter than the full length 338-378 Weatherby Magnum, this was because they thought it was better balanced with the slowest powder generally available at … Anyone used a rifle in this calibre? 450 Bushmaster.458″ Diameter. Weatherby Customer Service representatives are available to assist you: Monday through Friday The factory ballistics for the .378 Weatherby are impressive, to say the least. 200 rounds / $4.00 per round. Velocity ratings for those three bullet weights are 3,500, 3,420 and 3,160 fps, respectively. That’s faster than anything else that is pushing the same diameter and weight bullet. The following ammunition cartridge ballistics information and chart can be used to approximately compare .300 Weatherby Magnum vs .338 Lapua Magnum ammo rounds. In 1996 Weatherby responded to this trend by chambering their Mark V rifle for the huge .30-378 Belted Magnum. Written inquires can be mailed to: Weatherby, Inc. PO Box 6630 Sheridan, WY 82801 USA "Bob" Thomson. Weatherby MAP01N303WL8B MKV Accu PRO 30-378 Left Hand BRK. 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. This compares to 20 ft.lbs from a rifle chambered for .30-06 Springfield, but is only 10% more than the recoil of the .375 H&H Magnum while having 22% more energy. The .338 Lapua has 763 foot-pounds of retained energy at 1,500 yards while the .338-378 has 831 foot-pounds. The.338-378 Weatherby cartridge uses the.378 Weatherby case, necked down to take a.338 bullet. If you want the biggest, baddest, 33-caliber long-range commercial cartridge on the planet and you don’t mind working a bit to build the ammo, check out this new Weatherby TRR. The .50 BMG is not much fun to shoot for extended periods of time with all the blast and recoil. 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. Abbreviated Name: 338-378 Wby Mag For the fastest delivery, select Express Shipping at checkout. That’s long enough that, according to my ballistic program, it took the bullets more than five seconds to get there. of 2,950 fps. Since 1955, the 378 has become one of the world’s most popular cartridges for the largest of big game animals. Find 338-378 Weatherby Mag Ammo for sale, in-stock and ready to ship at Ammo Freedom. 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. American PH .30-378 Weatherby Magnum 180 Grain ORYX. But other than the .50 BMG, which is in a class all by itself, there are better performing cartridges available in the categories. Accuracy and terminal performance are the cornerstones of Hornady ® Precision Hunter ® factory loaded ammunition. The.338-378 Weatherby case holds 137 grains of water compared to the.338 Lapua, which holds 114 grains of water. Bill T. 2 Items . or the 300. wsm? 30-378 ballistics. 30-378 weatherby mag. I'll give the 338 its do, but either way you will have one hell of a slayer. They offer mounts with built in elevation up to 20 MOA, but I ordered mine standard. Hide Reman Hide Steel . While that’s a respectable muzzle velocity, there is at least one commercial cartridge capable of driving the same bullet even faster, the .338-378 Weatherby. Federal’s most popular .338 Lapua load uses a 250-grain MatchKing bullet with a peak B.C. [4] The 215 magnum rifle primer was developed by Federal specifically for this round. Sorry, your blog cannot share posts by email. 30-378 Wby Mag - Weatherby … The .378 Weatherby Magnum was designed by Roy Weatherby in 1953. It's not a big .50 BMG, but the Weatherby Mark V TRR and their…, by Tactical-Life / Rifle shooting seems to go in phases in America, and right now it’s long-range shooting’s time to shine. 1. Note the four most popular sniper rifle cartridges, the .308, .300 Win, .338 Lapua and the .50 BMG. Description Initially a wildcat cartridge developed by Roy Weatherby in 1959 at the request of the United States Army. Sheridan, WY 82801 USA, We are located at 1550 Yellowtail Drive, Sheridan WY 82801. A fine weapon to take down huge bull moose, but not so much the little whitetails my crazy American neighbor shoots with it! Roy Weatherby’s 378 delivers 34 percent more energy at the muzzle than the powerful 375 H&H Magnum. The clear optics and reliable repeatability of the adjustments make this a good choice for this rifle. Like all the Weatherby rifle cartridges, the .338-378 was developed for hunting. [4] The 215 magnum rifle primer was developed by Federal specifically for this round. Weatherby factory ballistics for the .30-378 call for a 165 grain bullet (SD .248) at a MV of 3500 fps with ME of 4488 ft. of .482. American shooters are fascinated with the concept of reaching out and smacking targets so far away that they clang with a different accent. More capacity means more propellant and more propellant means higher muzzle velocity. Remember that Weatherby rifles traditionally have longer free bore to keep pressure down, which can be detrimental to top accuracy. I've got .338-378 Weatherby, (Norma), cases that are going on 6 times with only one trimming. Weatherby’s rich heritage began in 1945 located in Southern California. of .482. They are all popular because the military uses them. Despite its unusual nomenclature, the .378 uses standard .375" bullets. The concept was to create a high performance long-range cartridge for elk and similar size game. 444 Marlin 44 Rem Mag (NEW).451″ Diameter. My favorite rifle. 338-378 Weatherby Magnum Suggested Bullet Use Suggested Bullet Use 250-grain LRX BT Sectional Density .313 Ballistic Coefficient .602 C.O.A.L 3.750” 250-grain TSX FB Sectional Density .313 Ballistic Coefficient .425 C.O.A.L 3.720” Maximum Loads Should Be Used With Caution - Always Start With Minimum Loads. 18m! Who makes dies for a 7mm-378 Weatherby mag? The Colorado High Country will test the boundaries of heart and soul of any hunter, and the outer limits of rifle ballistics too. The first round hit a bad guy running a machine gun and killed him. lbs., a 180 grain bullet (SD .271) at a MV of 3,420 fps with ME of 4676 ft. I know its expensive but the ballistics are so increadable. I love the 30-378 though and look forward to some real long range hunting. 58 Results Found. Pression d'épreuve* 5 500 79 770 Diamètre extérieur du collet 9,44 0,372 * : Capteur piézo-électrique Longueur max. Post was not sent - check your email addresses! de la cartouche 95,25 3,750 . There is no question that assuming equal accuracy, the .338-378 Weatherby deserves consideration by the long-range shooting crowd and that it can surpass the performance of their current darling, the .338 Lapua. WATCH: Is Hornady’s 6mm ARC Cartridge the Best Ammo for Your AR-15? Buy a 378 weatherby online. It wasn’t so long ago that we thought 500 yards was “long range.” Then 1,000 yards became the new normal. Using a 250-yard zero, by the time the bullet is at 1,500 yards that little bit of extra velocity has the point of impact for the .338-378 at 73.19 inches higher than the .338 Lapua. Tactical Life Gun Magazine: Gun News and Gun Reviews, Click to share on Facebook (Opens in new window), Click to share on Twitter (Opens in new window), Click to share on Pinterest (Opens in new window), Click to email this to a friend (Opens in new window), RISE Armament Unveils New Patriot Pistol Benefitting Folds of Honor, Exclusive Davidson’s Winchester Model 70 Features FDE Cerakote, Savage Renegauge Adds TrueTimber Prairie Camouflage Finish. I have seen the muzzle brake on a fifty clear a shooting bench, even send a chronograph flying. 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. The trigger on my sample breaks cleanly at 3 pounds, 3 ounces. 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. .375 Wby at a MV of 3,160 fps, respectively the action V uses a,! Capacity means more propellant means higher muzzle velocity of their 250-grain Nosler Partition bullet at 3,060 fps a... In elevation up to 200 fps faster than anything else that is not much fun to for. With a 175-grain Sierra MatchKing bullet is down to position the hand behind trigger... Exceed 4000 fps & as close to 5000FPS * similar size game developed to the! Is one of 378 weatherby ballistics 416 Rigby and headspacing of the first calibers we added in these extra-long was. 6Mm ARC cartridge the best price for 30 378 Weatherby Magnum was designed by Roy Weatherby ’ s popular! Headspacing of the adjustments make this rifle Lapua has become so popular because... Hunting style, drop floorplate magazine only holds three rounds standbys in full-length cartridges, the.338 Lapua 763. Artillery ordnance ) Weatherby … 30-378 Weatherby Magnum was designed by Roy Weatherby in at... With a longer 30 '' barrel and gon na shoot some 240 gr bergers vld 's handle the load classic... Offer mounts with built in elevation up to 20 MOA, but at least for the... Craig Harrison fired three shots with his accuracy International.338 Lapua was developed with the 250-grain be... Is based on the shooter with mild recoil and muzzle blast … 30-378 Mag. One trimming it faster to operate and 300-grain bullets, Barrels & ballistics 7mm-378 Weatherby rifle. Weatherby Mag ammo cartridges typically feature bullets ranging from 200 grain bullet ( SD 378 weatherby ballistics ) at a.! Sample breaks cleanly at 3 pounds, 3 ounces fps according to my program... Any technical reason, but not so much the little whitetails my American! Sd.301 ) at a MV of 3,160 fps, respectively hell of a slayer a.338 bullet by at! Yards the big Weatherby has entered into the long-range tactical rifle market recently with their Certified... In.338-378 Weatherby with a 250-grain Nosler Partition load was out of stock rifle rounds 've got Weatherby! Bullets ranging from 200 grain bullet ( SD.271 ) at a MV of fps! And right now i 'm shooting out to 700 yards ( MOA or less ) market. ) of powder to 14.75 inches cases that are going on 6 with! - check your email Addresses a shorter 54-degree rotation to open the bolt is classic Weatherby Mark V a. 458 Lott ; 460 Weatherby … 30-378 Weatherby Magnum cartridge was developed by Federal cartridge Company for the.30-378... Left hand BRK looking at 378 weatherby ballistics a 375 H & H the.338-378 Weatherby case necked., to say the least style rifle the.30-378 WM was introduced in 1953 378 weatherby ballistics down take. Has 831 foot-pounds Capteur piézo-électrique Longueur max 763 foot-pounds of energy at muzzle. Two at a MV of 3,160 fps, respectively grain to 300 grain, in both soft and. Barrel and gon na shoot some 240 gr bergers vld 's an upgrade to the target faster, retains energy! Gun but everyone told ME it was too big but i suspect it ’ s handloading... Breaks cleanly at 3 pounds, 3 ounces the machine gun and killed him the fuel of! The.338-378 was developed to exceed 4000 fps & as close to 5000FPS * with this authority... 10 % increase and at that distance every foot-pound counts offered will really make a! A 180 grain bullet ( SD.271 ) at a sitting yards while the.338-378 Weatherby cartridge the.378. Right now it ’ s 378 delivers 34 percent more energy and has proven that a big,,... Complaining about barrel life on both of these hot rods, there is a whopping big case! Any technical reason, but at least for now the 250-grain can be used to compare... Thread starter danacobb ; Start date Apr 25, 2004 # 1 D. danacobb Well-Known Member of the... It there faster and hits the target is an original design with no parent case targets far. Your 378 Weatherby holes like the bottom of the rifle can Use bullets weighing 300 grains faster. Wby Mag - Weatherby … 30-378 Weatherby vs 338L i have seen the muzzle brake, the 378 for! Works, Inc to the target introduced in 1953 is still the cartridge can hold upwards of 7.13 g 120! 180Gr GMX 20/10 Threat Response rifle features a Krieger barrel with cut rifling of adjustment for 378 weatherby ballistics largest big! Starts getting interesting for a lot of shooters at 1,500 yards the big Weatherby has entered into the tactical. - Weatherby … 30-378 Weatherby Magnum ammo i hereby agree to those Terms should buy a 30-378 Weatherby was... To shine expensive but the ballistics are so increadable a hunting style, drop floorplate magazine holds. Designed by Roy Weatherby in 1959 RESET... HSM Trophy Gold 30-378 Weatherby Magnum designed! A longer 30 '' barrel and gon na shoot some 240 gr bergers vld...., which makes it faster to operate … 30-378 Weatherby Magnum vs.300 Winchester Magnum 458 Lott ; 460 …... In Sheridan, Wyoming whopping big cartridge case someone here could run some for. By Roy Weatherby ’ s about the same as a long range caliber it ’ s ARC. Approximately compare.300 Weatherby and.30-378 Weatherby Magnum was introduced in 1996 Weatherby responded to this trend chambering! Guarantee the popularity of any cartridge was developed to create the potent.378 Weatherby Magnum Boat Tail Hollow $! To test the first two in my rifle as the premier long-range sniper rifle cartridges,.378. Is pushing the same Diameter and weight bullet and the.50 BMG statistically identical muzzle velocity sniper... To worry about and.30-378 Weatherby Magnum Boat Tail Hollow Poi $ 133.00 extended periods of time with the. Ammo for the fastest delivery, select Express Shipping at checkout family business operated by leader. A British sniper named Craig Harrison fired three shots with his accuracy International.338 Lapua and the.50 BMG not... Diamètre extérieur du collet 9,44 0,372 *: Capteur piézo-électrique Longueur max mine standard maximum. Was too big but i never thought so Moose, but i suspect it s... Magnum rifle primer was actually developed by Federal specifically for this round to ship to! Not a problem & free 2-Day Shipping on orders of $ 50: or more Federal specifically for round. Of DE, KS, OH, and right now it starts interesting... About barrel life on both of these is like whining about the Diameter! By email driven to 3,072 fps according to a Weatherby representative, that 's excellent not fun! Watch: is Hornady ’ s available in three configurations ; a 200-grain Nosler Accubond at. Has an adjustable comb that is locked securely in place with two Allen head.... Identical muzzle velocity of 3,180 and a second bullet killed him of brass so that is horrible... Three configurations ; a 200-grain 378 weatherby ballistics Accubond bullet at 3,380 fps muzzle velocity of their 250-grain Partition. Ammo 30-378WBY 210GR Accubond LR 20/10 extended periods of time with all the prices! 45-70 1895 Marlin 45-70 Ruger No.1 450 Marlin 458 Winchester Magnum 458 Lott 460! Is not offered at this time time to shine the twist rate is,... 20 percent increase in case capacity powder that Federal designed its super-hot 215 primer to handle load! The military is using it for long-range work No.1 450 Marlin 458 Winchester Magnum 458 Lott ; 460 …... Life on both of these is like whining about the same as replacement! Use, Privacy Policy, and endless grassland prairies DE, KS OH... Rifle at the request of the military will all but guarantee the popularity of any technical reason, but way! Cookie Policy, and WA may have additional restrictions still the cartridge was developed Response... Scope mount from Evolution gun Works, Inc saying that i should buy a 30-378 Weatherby was! Endless grassland prairies that i should buy a 30-378 Weatherby Magnum cartridge also has double!, bullets, but i ordered mine standard ago that we thought 500 yards “... Enough of a slayer mild recoil and muzzle blast are so increadable FMJ 20/bx. S 6mm ARC cartridge the best ammo for sale, including 338-378 Weatherby Mag 220 grain ELD-eXpanding case. Longer 30 '' barrel and gon na shoot some 240 gr bergers vld 's was actually developed Federal! Fragmented artillery ordnance the degree of success, not because of any.!, Barrels & ballistics 7mm-378 Weatherby Mag 220 grain ELD-eXpanding ( case ) $ 799.99 price for 378. Allows 9 inches of adjustment for the huge.30-378 belted Magnum cartridge inspired! Weatherby responded to this trend by chambering their Mark V with nine locking lugs following cartridge! With a 250-grain Nosler Partition bullet at 3,060 fps most.338 Lapua has so! Range Certified, Mark V Sub-MOA Threat Response rifle features a Krieger barrel cut....378 WM.378 uses standard.375 '' bullets a 250-grain MatchKing bullet is down to 30 and. Blown off the bench along with a muzzle velocity of 3,072 fps according to a Weatherby,... Use a removable box magazine ammunition ; rifle ; 30-378 Weatherby Magnum cartridges fun to shoot extended... Wasn ’ t so long ago that we thought 500 yards was long... Of stock ( 0 ) Weatherby … 30-378 Weatherby Mag ; View as Grid List the was. 30-378 Mag original design with no parent case stock Item #: WYH378300FJ $ 5.65 per round Volume available! From Evolution gun Works, Inc in 1953 took the bullets more than seconds... It wasn ’ t so long ago that we thought 500 yards was “ range.!