It is one of the original standard length magnums developed by shortening the .375 H&H Magnum case to approx. numbers are a more accurate predictor of performance with the extremely sleek, long, boat-tail bullets, but most shooters are more familiar with G1 B.C. Choose the lowest price from our multiple warehouses. I’ve included a typical 30-06 deer load for comparison. It killed the limb and the bear. The Creedmoor load will launch at 2,730 fps from a 24” barrel, the 257 Weatherby Magnum at 3433 fps from a 26” tube. The .240 Weatherby Magnum was developed in 1968 by Roy Weatherby.In the development of his own .240in/6 mm cartridge, Weatherby was significantly influenced by both the success and the limitations of the .244 H&H Magnum cartridge devised in England by his friend and colleague David Lloyd.It was the last cartridge to be designed by Roy Weatherby. The case often produces a one-foot flame—even in bright daylight—from the muzzle, caused from the excess powder burning outside the barrel. $18.03 $ 18. Looking for previous installments of our "Head to Head" series? .240 Weatherby Magnum. The .240 Weatherby Mag. The .257 Weatherby is an overbore design, meaning that there is more powder in the case than can be burned in a conventional barrel length. As we can see, the 257 Weatherby Magnum shoots much flatter than the Creedmoor. The .25s have been American favorites for over a century, dating back to the .25-35 and .25-20 Winchester cartridges; by the time the .250-3000 Savage and .257 Roberts hit the scene, hunters were totally hooked. It had to spit an 87-grain bullet to do this. It makes an excellent deer/antelope cartridge, and can easily do double-duty on coyotes and foxes with the 87- and 100-grain bullets. Why? This means we’ll zero so no bullet crests higher than 4 inches above point-of-aim. Compare that to the top end 6.5 Creedmoor MV of 3,068 fps with a 120-grain bullet and even the 270 Winchester with 130-grain spire points at 3,100 fps and you begin to see the light. Fired at sea level, 10 mph right angle wind. Accuracy and terminal performance are the cornerstones of Hornady ® Precision Hunter ® factory loaded ammunition. Get it as soon as Wed, Dec 30. The fact remains that .257 Weatherby ammo options are quite limited when compared to the .30-06 and that you can buy .30-06 ammo at a fraction of what you will pay for the cheapest .257 Weatherby ammo. It’s a belted magnum, but the belt is nothing more than a carryover from the H&H design—where it was used for headspacing those slope-shouldered cartridges—and has nothing to do with strength whatsoever. Privacy Policy   •   Contact Us   •   Warnings   •   FAQs   •  © 2020 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, .25-06 Remington vs .257 Weatherby Magnum, Head to Head: .308 Winchester vs. .30-06 Springfield, Head to Head: .444 Marlin vs. .45-70 Government, 2020 National Rifle Association of America. Photo: Long, sleek bullets are pushed to top velocities by the .257 Weatherby Magnum, making it effective for everything from varmints to moose. The results are bullets as long as a 1-10” twist barrel can stabilize. Still, it surprises many to learn that Roy Weatherby contributed to the excitement clear back in 1945. I liked that rifle so much that I used it to cull a half dozen whitetails and at least that many coyotes. One of the reasons the 257 Wby. Even Weatherby rifles are saddled with a 1-10” twist in 257 Weatherby Magnum. 270 Weatherby Magnum Developed 1943 / Produced 1945 Was one of the first Weatherby Magnums offered to customers. Just five years later A.O. Hornady 046042 Neck Size Die 257 Caliber (.257) Cartridge Type: Rifle Height: 2.549" Width: 0.531" Average FPS: 3408 Average Energy: 2836 Average Gr: 110 Recoil: 1.76 Power Rank: 3.75 of 20 The .257 Weatherby Magnum was designed by Roy Weatherby in 1944 and was first introduced into the market during 1948. The .257 Weatherby Magnum was released at the end of World War II, and was the first of a long line of cartridges to bear Roy Weatherby’s name. 257 Weatherby Magnum, 115-gr. The Creedmoor load will launch at 2,730 fps from a 24” barrel, the 257 Weatherby Magnum at 3433 fps from a 26” tube. This was the first commercial cartridge to hit the 3,000 fps mark. Velocities are taken from reloading manuals. If you’re looking for a mild-recoiling, flat-shooting, hard-hitting centerfire rifle you’ve probably overlooked in the past, look to the 257 Weatherby Magnum. The .240 Weatherby is the highest velocity commercially produced 6mm cartridge. It was based on the .300 Holland & Holland case, shortened to just over 2 ½ inches, with the body blown out to maximize capacity. Most .257” bullets top out at 120-grains, and at that weight even the really sleek, long boat-tail versions have a hard time breaking .450 B.C. Ballistic Table . Until the 243 Winchester and 244 Remington appeared in 1955, the 257 Roberts was the dual purpose varmint/deer cartridge of choice across the land. Mag. To put this in perspective, 1945 was the year WWII ended. The .25-06 has a decent balance of case capacity of bore diameter, and runs very well in a 24-inch barrel. Mag. In spite of the brilliant simplicity and effectiveness of the design, it would take more than a half-century for the .25-caliber offspring of the .30-06 to have a legitimate name. ... Hornady B257 Lock-N-Load 257 WBY Weatherby Mag Modified Case. dual purpose varmint/deer cartridge of choice across the land. The 257 is less then a 100 fps faster with a 100 gr bullet as compared to the 127 in the 6.5-300, comparing the 2 is like comparing the 257 and 25-06. (There are some small bullet makers like Blackjack offering high B.C. A bit more slender than the .30-06,the .240 Magnum shares the same case-head size, and length - 63.5mm (2.500”), but headspaces on the belt in charactaristic Weatherby fashion and features the traditional Weatherby double radiused shoulder. RCBS Scales Chargemaster Lite 120/240 Vac-US/Intl. We’ll zero both for maximum point blank range with an 8-inch target diameter. Bulk Ammunition on sale, including 240 Weatherby Mag Rifle Rounds. Back in the first third of the 20th Century 25-calibers were quite popular. (G-7 B.C. There are no flies on a good .25-06 Remington, but when it comes to the blazing quarter-bores, the .257 Weatherby Magnum holds a special place in the hunting fields. Both cartridges are fully capable of eroding the throat of a barrel, especially with a rapid succession of shots. The .25-06 Remington holds the edge as far as a variety of factory loads available, however the .257 Weatherby is far from a proprietary load. Yes, the excellent Weatherby factory ammunition is still available in several weights and with premium bullet choices, but Hornady, Nosler and Norma also offer factory loaded ammunition. Therefore the higher impact velocity of the .257 Weatherby Magnum will—and in most instances apparently does—switch off a deer’s nervous system. It’s obvious now how popular the .257 Weatherby is by the support of commercial ammunition on the retail level. A 100-grain bullet moving 3,600 fps? To fix this you’d have to mount an aftermarket, 1-9" or 1-8" or even 1-7.5" twist barrel on your rifle. Because Weatherby kept if proprietary. This was the year the first Leica laser range finder came out. I rather regret that I haven't had occasion to use one on elk or moose. The .25-06 Remington came first, dating back to as early as 1912, when Charles Newton necked the .30-06 Springfield case down to hold the .257″ diameter bullets from the earlier .25-caliber cartridges. Suddenly this Weatherby pops up, belting the same bullet an additional 600 fps. ), 25-21 Stevens, 25-25 Stevens, 25-36 Marlin, 25 Remington and 25-35 Winchester (also still kicking.) The highest B.C. But things didn’t really start to sizzle until Charles Newton created the 250-3000 Savage for the Savage Model 99 lever-action rifle. Clearly, American shooters in the first half of the 20th century were creating a cult of the “quarter bore,” finding it a more-than-sufficient caliber for most North American game — black bears, elk, and moose included. The author tests and shoots a wide variety of cartridges and calibers only because he's dedicated to providing information to his readers. of energy. We’re sticking with published data. All Rights Reserved, Prior to the commercial ascendancy of the 25-06 Remington, however, there was the 257 Roberts. In an 8-pound rifle, the 257 Wby. I think this may be an instance of ‘go-big-or-go-home’, in that the .25s are predominately deer/antelope/sheep cartridges, as they lack the bullet weight to make a sound choice for elk and moose. extensively, but in 1999 it did the heavy lifting on a Coue’s deer hunt in Sonora. Perhaps you should rectify that oversight. of .483. Velocities are taken from reloading manuals. For me, the best whitetail cartridge is the .257 Weatherby Magnum. 264 Winchester-Mag Vs 257 Weatherby- Mag 06-14-2017, 08:57 AM From what i see the 257Wby is about 125fps faster, but the 264(6.5) Win had a greater choice of bullet weights. With today’s slow burning powders in rifles with 26” barrels, handloaders can safely hit 3,576 fps (Nosler Reloading Guide 8) with 100-grain bullets, 3,480 fps with 115-grainers, and 3,400 fps with 120-grain projectiles. In Wyoming a genuine Weatherby Mark V rifle in 257 Wby. The .257 Weatherby will push the 117- and 120-grain bullets to a sizzling 3300 to 3400 fps; this is certainly an impressive velocity, and will generate nearly 3,000 ft.-lbs. Many 140-grain 6.5mm bullets (.264”) are exceeding .600 B.C. The 257 Weatherby Magnum may be the most overlooked, under-appreciated, mild recoiling, flat-shooting, hard-hitting centerfire rifle cartridges you’ve never fired.
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