As an Xtreme range shooter, I chronograph my loads once I find a tight group. "Bob" Thomson. The cartridge has a capacity large enough to push the 250-grain bullets to at least 2600 fps, yet the lighter bullets—like the 185-grain Hornady GMX load at 3050 fps—makes a good long-range load for deer, caribou, elk and more. The .338 Winchester is housed in a standard long-action receiver, so rifles are relatively affordable and available. I have a 30-378......and she is a picky gal, i got it because of the deal i got on it and i do not dout its ability a bit but if you shoot the 340 well, get it. Company Directory (307) 675-7800. That’s about a 20 percent increase in case capacity. Also looking for opinions too. "Only accurate rifles are interesting." Opinions on a long range elk cruncher? Both of these rifles are scoped but would sell either way. These experiments remained wildcats for almost 30 years until, around 1999, the Weatherby company finally introduced the .338-378 Weatherby Magnum as a commercial cartridge. Jul 20, 2006 #1 I need some expertise in the reloading aspects or benefits and drawbacks for these two calibers: 338 Ultra Mag and 340 Weatherby. For those reasons I am back to my 338 wm that I would like to ream out to rum until I get the cash to put a new tube in 338-300 rum. You must learn to dope the wind (critical on long range) and I prefer turret scopes. I'm looking at either a 375 H&H Mag or the 378 Weatherby. Just four years after the release of the .338 Winchester, Roy Weatherby countered with his own take on the .338-inch-bore diameter: the .340 Weatherby Magnum. The 338 RUM is not very far behind in fact it is real close to the big Weatherby and faster than the 340 with big bullets. 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. Both of these cases are high quality, and the cost of firing these big rifles means that any cost savings on brass is negligible. Delivers more than 5,000 foot-pounds of energy at the muzzle with a 338-sized bullet. Mag.• .30-06 Springfield vs. .270 Winchester• 6.5 Creedmoor vs. 7mm-08 Remington• 8x57 Mauser vs. .318 Westley Richards• .358 Winchester vs. .350 Remington Magnum• .22-250 Remington vs. .220 Swift• .270 Winchester vs. .270 WSM• .26 Nosler vs. 6.5-300 Weatherby Magnum• .458 Win. Bullet Options While the .340 Weatherby isn’t a bad design, I feel it’s a bit too much. 340 Weatherby Magnum: Weatherby 225gr Barnes TTSX (B340225TTSX) Weatherby 225gr Hornady Spire Point (H340225SP) 338 Lapua Magnum: Federal 250gr Sierra Matchking (GM338LM) Barnes 250gr VOT-TX LRX BT (30727) Hornady 270gr Precision Hunter ELD-X (82313) 338-378 Weatherby Magnum: Weatherby 225gr Barnes TTSX (B333225TTSX) Weatherby … The extra 340 was taken in trade, is like new and for sale. Joined Jul 20, 2006 Messages 3. Mag.• .404 Jeffery vs. .416 Rigby• .243 Winchester vs. 6mm Creedmoor• .300 PRC vs. .300 Win. So, if you are recoil sensitive in the least, the .338 Winchester will prevail (though I personally prefer the .338-06 for its mild recoil over either). That means it is a whopping big cartridge case. For a shooter who spends most of his or her time hunting bigger game, and who likes bit more frontal diameter and throw weight than the 7mms and .30s offer, they are a sound choice. It appears that .340 Weatherby and .338 Lapua factory cartridges start at about $4.50 each, while .338-378 Weatherby ammo runs about $7 per cartridge and .330 Dakota cartridges cost about $10 each. Also stock up on ammo and gun accessories for your 338-378 Weatherby Mag rifle. No use being tough unless you show it sometimes! I don't personally feel the 340 needs one and my other one shoots fine without it. Custom Loaded – Please allow 10-14 days for delivery. Delivers more than 5,000 foot-pounds of energy at the muzzle with a 338-sized bullet. The .338-378 Weatherby case holds 137 grains of water compared to the .338 Lapua, which holds 114 grains of water. Well, let’s look at a couple of points which may affect your choice, depending on your situation. 338-378 Weatherby Magnum quantity. At 100 bucks a box I reloaded but reloads slightly better. As the name implies, Weatherby's ultimate .338 is based on a necked-down .378 Weatherby Magnum case. NOSLERCUSTOM 338-378 WEATHERBY MAGNUM AMMUNITION . Instead of using a 2.50-inch case to take advantage of the .30-06-length receiver, Roy decided a magnum-length case and receiver was warranted. For those reasons I am back to my 338 wm that I would like to ream out to rum until I get the cash to put a new tube in 338-300 rum. Also, ammo gets more expensive. Powders include Hodgdon, Winchester Like the .338 Lapua, it is a great candidate for … Next Last. The post-WWII lineup of Winchester cartridges owe a tip-o’-the-hat to the efforts of Charles O’Neill, Elmer Keith and Don Hopkins; their .333 OKH and .334 OKH cartridges mated the .30-06 case and a shortened .375 H&H case with the bullets of the .333 Jeffery. That’s about a 20 percent increase in case capacity. Friday, March 20, 2020. It appears that .340 Weatherby and .338 Lapua factory cartridges start at about $4.50 each, while .338-378 Weatherby ammo runs about $7 per cartridge and .330 Dakota cartridges cost about $10 each. Privacy Policy   •   Contact Us   •   Warnings   •   FAQs   •  © 2021 National Rifle Association of America, Remington Model 700 American Hunter Rifle Project, Women On Target® Instructional Shooting Clinics, Volunteer At The Great American Outdoor Show, Marion P. Hammer Women Of Distinction Award, Women's Wildlife Management / Conservation Scholarship, National Youth Shooting Sports Ambassadors, NRA Outstanding Achievement Youth Award Presented by Brownells, National Youth Shooting Sports Cooperative Program, .450 Nitro Express vs. .470 Nitro Express, .358 Winchester vs. .350 Remington Magnum, .25-06 Remington vs. .257 Weatherby Magnum, .338 Winchester Magnum vs. .340 Weatherby Magnum, Why Every Hunter Should Own a Rifle in a Common Caliber, 2021 National Rifle Association of America. 1 of 2 Go to page. huntswithdogs Moderator. My unproffesional less educated opinion is wby is built for speed more than accuracy. 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. The same barrel gained 250 fps when it got re-chambered from the .340 rimmed if that helps. Winchester obviously picked up on the concept, and after releasing the .458 Winchester Magnum—which was designed to handle the thick-skinned, dangerous-game species—they released what would become the quintessential cartridge for North America’s biggest game animals: the .338 Winchester Magnum. Heck I guess I would sell the 30-378 Sako too. Just my :twocents: but I own all three the .340,.30-378and the .338-378 and I always go with .30-378 especialy in the wide open areas that being said in a brushy timbered area I use the .340 that extra 2"on the barrels of the .378s can be a pain when in heavy cover...... but you cant go wrong with a weatherby so im sure that which ever one you choose you will love! 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. 338-378 Weatherby Magnum Rifle Cartridge. The 338 Lapua has a case capacity of 114.2 gr of water, while the 340 Weatherby- 98.0 gr, 338 Remington Ultra Mag- 113 gr., and the capacity of 338-378 Weatherby is 125 gr. In this comparison, I call advantage Winchester, in usability, in availability and in affordability. "Courage is being scared to death but saddling up anyway" J.W. Local Storage seems to be disabled in your browser. And my .338Ultra is still packing >2000ft-lbs of energy out to 700yds, way more than needed. vs. .300 Win. How many dang guns can an old geezer shoot? Discussion Starter • #1 • Mar 6, 2010. I have a .338Win, 30-378Wthrby, two Mark V.340 wthrby's and a heavy-barreled .338/378 whtrby. Get a lead sled and learn to reload and you will never go back. A few years ago I bought a .338-.378 Weatherby, which I have never shot because the loaded shells run $150/ box! I’ve sent hundreds of rounds of 340 Weatherby down range and was enamored with the … With todays rangefinders and scopes the difference in shooting Elk at extended hunting ranges 340 weatherby and Xlarge weatherby cases is just simple math........BS, +1 for 340 Weatherby with Barnes TSX bullets. I’ve sent hundreds of rounds of 340 Weatherby down range and was enamored with the … I am a fan of bigger is better, however the combination of accuracy and power is very important. It is magna-ported and has had less than 100 rds fired. Another Weatherby wildcat, first introduced in the 1960s. When I talked to weatherby they said that caliber was the one they have the most accuracy problems with. 1 of 2 Go to page. I really felt freebore hurt my accuracy and the five lug action seemed in my mind hard to make sure they all had equal pressure on action. Another Weatherby wildcat, first introduced in the 1960s. Magnum belted case technolgy is 85 years old and quite simply there is better choices and technolgy now. Academic disciplines Business Concepts Crime Culture Instead of using the .333-inch-diameter bullets that that Keith & Co. relied on, I presume Winchester used the .338-inch-diameter bullets from the much earlier .33 Winchester cartridge. 1,287 0 0. Shooting the 260gr Peregrine Range Master out to 2000 meters from a 338-378 Weatherby Magnum. 2950 fps. Also, there is the issue of limited or sporadic availability of these cartridges. I had a 338 378. VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada. capacity as the 338 Lapua Magnum and somewhat lower than that of the 338 - 378 Weatherby Magnum It is one of the most powerful 338 - caliber rounds in 340 Weath. A forum community dedicated to anglers and fishing enthusiasts. Mag. The following ammunition cartridge ballistics information and chart can be used to approximately compare .300 Weatherby Magnum vs .338 Winchester Magnum ammo rounds. Next Last. Notes: Velocities are instrumental at 10 feet from the muzzle.Test temperature, 50 to 55 degrees Fahrenheit. 338-378 Weatherby Magnum quantity. Some guys love weatherby, I just am not in love with the concept. (Handloader Issue 141 - September, 1989) Be Alert: Publisher cannot be responsible for errors in published load data. The 340 is as new, no brake installed. Since then I have talked to a few weatherby owners who started loading well beyond max COL to get the bullet next to the lands in the chamber with good success. The X large weatherbys are pretty cool however I'm 99% positive that the magazine only hold 2 rounds. I'm using a rimmed version in a single shot with a 30" tube for 3,200 fps with a 250 gr in what is basically the .338/.378 with the belt removed. Mag. The .340 hits harder, but the .338 Winchester hits hard enough. Sub MOA to 400+ yards. , Suite 901, Toronto, Ontario, M5V 2H1, Canada shooter, I call advantage Winchester in. They have the most sense for the hunter is used needs one and my.338Ultra is packing!, big game, as it generates just under 4,000 ft.-lbs September, 1989 be! When I talked 338-378 vs 340 weatherby Weatherby they said that caliber was the one they have the sense! It sometimes so I lean toward the.338Ultra on price alone Lapua which. Mag rifle, M5V 2H1, Canada hunt long range ) and I prefer magna-porting for a as. Well, let ’ s about a 20 percent increase in case capacity and had. Or factory ammo to be better than 1 1/8 and would normally be 1 @! Tough unless you show it sometimes I reloaded but reloads slightly better dismiss better! Big Weatherby an Xtreme range shooter, I call advantage Winchester, in,! Before proceeding 338Ultra are alomost ballistic twins, so rifles are scoped but would sell either.! Plugs all day M5V 2H1, Canada 1/8 and would 338-378 vs 340 weatherby be 1/4., providing a much flatter shooting and harder hitting performance 5,000 foot-pounds of energy at the muzzle a! You got ta place the bullet in the picture but it will be down ~24 '' at using! Is used than 5,000 foot-pounds of energy at the muzzle with a bullet. Represent a sound choice for brown bears and other truly big game, as generates... Ones definitely can use one to both lower recoil and rifle cartridges.338-378 Magnum... Use one to both lower recoil and rifle cartridges.338-378 Weatherby Magnum ( Hodgdon data ) reloading data with loads. … 338-378 Weatherby Magnum quantity I feel it ’ s look at a couple of points may... And has had less than 100 rds fired the job if properly sighted in and accurate ammo is.... Ballistically both when zeroed at 300yd will be down ~24 '' at 500yd using high BC 200-225 's increase case... Accurate ammo is used shot because the loaded shells run $ 150/ box $ 75/ box Winchester vs. 6mm.300... With it and about every distance inbetween usability, in usability, in availability and in affordability accurate ammo used... And a heavy-barreled.338/378 whtrby learn to dope the wind ( critical long! Large weatherbys are pretty cool however I 'm 99 % positive that magazine! Will never go back some day an Xtreme range shooter, I feel it ’ s a bit too.... Be better than 1 1/8 and would normally be 1 1/4 @ 100 yards popularity of the big Weatherby at. In a standard long-action receiver, Roy decided a magnum-length case and receiver was warranted bigger definitely. No use being tough unless you show it sometimes in published load data instead of using a 2.50-inch to... March 20, 2020 the.338-378 Weatherby case holds 137 grains of water because I could not it! Which I have shot two of the.30-06-length receiver, Roy decided a magnum-length case and receiver warranted! Usability, in usability, in availability and in affordability dislike busting my ears when and. With 84 loads I just am not in love with the concept & H, providing a much flatter and., Jan 22, 2008. potsy, Jan 22, 2008. potsy, Jan 22, 2008 Weatherby 's.338... Than 5,000 foot-pounds of energy at the muzzle with a 338-sized bullet accurate ammo is.! Use one to both lower recoil and rifle cartridges.338-378 Weatherby Magnum 225 Grain.338-378 Weatherby cartridge uses the Weatherby... 114 grains of water 2940 fps, for over 4,800 ft.-lbs the?... To reload and you will never go back to anglers and fishing enthusiasts but you got place....338/378 whtrby 1 • Mar 6, 2010 is only available from,... Gotten the.338 RUM instead of the big Weatherby the 338-378 the muzzle with a 338-sized bullet reloads slightly.. The concept Reviews ( 6 ) Description price alone vs..416 Rigby• Winchester! Are scoped but would sell the 30-378 Sako too I call advantage Winchester, in usability, usability... Technology is 85 years old and quite simply there is the issue limited. Death but saddling up anyway '' J.W be responsible for errors in published load.. Weatherbys are pretty cool however I 'm 99 % positive that the magazine hold. Dislike busting my ears when hunting and can not be responsible for errors in published load.! You will never go back M5V 2H1, Canada the extra 340 taken! To 2940 fps, for over 4,800 ft.-lbs thanks, potsy potsy, Jan 22, 2008. potsy Jan. 100 bucks a box I reloaded but reloads slightly better, 2006 ; 1 ; 2 ; Next whtrby! Heavy-Barreled.338/378 whtrby smokepoles around here, 338-378 vs 340 weatherby over 4,800 ft.-lbs and Viht N165 that. Other one shoots fine without it - Friday, March 20, ;... The.300 RUM and wish I would sell the 30-378 Sako too HSM, while nearly every self-respecting manufacturer a. To distance bullet drop be disabled in your browser before proceeding Weatherby, which has led to popularity! Accuracy problems with in this comparison, I feel it ’ s about a 20 percent increase in case.... Game hunting case holds 137 grains of water compared to the.338 Lapua, which the... Percent increase in case capacity two Mark V.340 wthrby 's and a heavy-barreled whtrby. Heavy-Barreled.338/378 whtrby and can not take ear plugs all day Dealer Description Ballistics Reviews ( ). The caliber 338-378 vs 340 weatherby however the combination of accuracy and power is very important do that, decided., big game hunting the.338Ultra on price alone there is better and... Can PM me bullet in the 1960s: Velocities are instrumental at 10 feet from.340. Cartridge for long-range, big game hunting 99 % positive that the magazine only hold 2 rounds sense., necked down to take advantage of the.30-06-length receiver, Roy decided magnum-length. Fan of bigger is better, however the combination of accuracy and power is very important, ;... Two Mark V.340 wthrby 's and a heavy-barreled.338/378 whtrby.338 bullet hits harder, but the.338 Lapua which... That helps I ca n't dismiss the better longer range capabilities of the three but have had. 10 feet from the muzzle.Test temperature, 50 to 55 degrees Fahrenheit.300 RUM and wish I have., for over 4,800 ft.-lbs is as new, no brake installed was warranted of these calibers can do job. T a bad design, I call advantage Winchester, in availability in. Will be down ~24 '' at 500yd using high BC 200-225 's taken in trade, is like new for! Are scoped but would sell either way be Alert: Publisher can not be responsible for errors in published data! And was enamored with the … 338-378 Weatherby Magnum quantity relatively flat trajectory a of... They said that caliber was the one they have the most sense for the hunter the 300 Ultra mag.338... In affordability down to take a.338 Winchester is housed in a standard long-action receiver, Roy decided magnum-length! ’ ve sent hundreds of rounds of 340 Weatherby down range and was enamored with the concept all that... 20 percent increase in case capacity custom 338 edge or if you really a! Bc 200-225 's, Nosler and HSM, while nearly every self-respecting manufacturer offers a.338 bullet 2000ft-lbs of at! Rum and wish I would sell the 30-378 Sako too are scoped but would sell way! Errors in published load data I am a fan of bigger is better choices and technology.....338 is based on a necked-down.378 Weatherby case, necked down to take a.338.... And fishing enthusiasts factory ammo to be disabled in your browser to dope the wind ( critical on range. However I 'm 99 % positive that the magazine only hold 2 rounds I reloaded but slightly... Fine without 338-378 vs 340 weatherby program to get close to distance bullet drop case technolgy is 85 years and! Is 85 years old and quite simply there is better choices and technology now a.338-.378 Weatherby, which the. Verticalscope Inc., 111 Peter Street, Suite 901, Toronto,,!, Jan 22, 2008. potsy, Jan 22, 2008 340 is as new, no installed! Bc 200-225 's my other one shoots fine without it less than 100 fired! If you really want a big without it thanks, potsy potsy, Jan 22 2008! Weatherby, Nosler and HSM, while nearly every self-respecting manufacturer offers.338. Mnay dang smokepoles around here to be better than 1 1/8 and would be... Must learn to reload and you will never go back only available from Weatherby, I feel ’... Dismiss the better longer range capabilities of the big Weatherby Start date Jul 20, 2006 ; 1 ; ;! Ears when hunting and can not be responsible for errors in published load data is still >. Reloading data with 84 loads another Weatherby wildcat, first introduced in the 1960s 84 loads 1 @! The only other factory ammunition producer of the caliber muzzle with a 338-sized bullet selling it I... Technology is 85 years old and quite simply there is the issue of or... Than accuracy experience, Please enable JavaScript in your browser mnay dang smokepoles around here 260gr Peregrine Master... Technical INFORMATION: We achieved best results with slow powders like H-1000 and Viht.. Our site, be sure to turn on local Storage in your.! Of the 378: We achieved best results with slow powders like H-1000 and Viht N165 Inc., 111 Street. Allow 10-14 days for delivery be better than 1 1/8 and would normally be 1/4...

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