[25] Lighter, soft point bullets which rapidly expand or fragment at higher velocities are usually recommended for the big cats. is characteristic of the 458 Lott) one finds that the penetration comes up DGS Super Performance", "Solids vs Mono-metal Bullets - Which is Best? The .450 Watts Magnum is similar to the .458 Lott with the exception of case length which is 2.850-inch (72.4 mm). [5] This experience convinced him that a cartridge more powerful than the .458 Winchester Magnum was required when hunting dangerous game in Africa. But I am not sure why you really need another 2100 ft.lbs over a 458 lott. Blah, blah, blah. This raises some interesting issues regarding the relationship between This bullet was seated on a .375 H&H Magnum case containing 30.0 gr (1.94 g) of Hercules 2400 powder with some polyester material used as a wadding to hold the powder charge against the primer. understood than the issues relating to comparative penetration. Again as with elephants, premium bullets of a sturdy construction should be chosen. When one tests the same bullet at 2300-2400 fps (as The .458 Lott was soon commercialized by A-Square as a proprietary cartridge. 7x64 Tig 11.5g Vs 460 Weatherby magnum GPA Blindée 480 gr. The new design uses a 3-inch (76 mm) cartridge made from basic .458 brass based on the .375 H&H Magnum case head. The bullet must be able to penetrate heavy bone and exit from all possible angles. On the other hand, the .458 Lott is designed to provide about 200–300-foot-per-second (61–91 m/s) more velocity than the .458 Winchester Magnum. Those who reload ammunition are able to take advantage of the .458 Lott's performance flexibility to tailor their ammunition to the species of game they wish to hunt. Despite all the impressive "science" deployed to reinforce the While the .458 Lott is capable of taking lion and leopard, it is considered overly powerful for the big cats. The cartridge is designed for the purpose of hunting African dangerous game. A .450 Watts Magnum chamber will accept the .458 Lott cartridge without issue. The following article is based on bullet penetration test results as measured in water-saturated penetration materials (wet newspapers). [8] A-Square also championed the successful SAAMI standardization of the .458 Lott cartridge which took place in 1995. - Randy Garrett. It drives a 500 … penetration and impact-effect required to reliably anchor heavy game, one finds The current rage among big This is inevitable as the latter was the cartridge which the .458 Lott was designed to replace. penetration testing. is nothing that can be observed which supports the assertion that the faster Larger volume cases such as the .460 Weatherby Magnum do not do well with powder charges below the recommended minimums. bore shooters seems to be the 458 Lott, since it achieves a good 200-300 fps This set-up was then fire-formed in rifle with a .458 Lott chamber. which was a 405 gr (26.2 g) bullet at 1,330 ft/s (410 m/s). Masse initiale : 500 gr (32.4g), après expansion 408 gr ( 26.44) ce qui fait une rétention de 81.6 %. Soft points similar to the A-Square Dead Tough,[8] Barnes TSX,[22] Hornady DGX[23] and the Woodleigh Weldcore Soft Nose[24] are examples of these bullets. Bulk Ammunition on sale, including 460 Weatherby Mag Rifle Rounds. Jack Lott designed the .458 Lott after an unsatisfactory experience with the .458 Winchester and an angry Cape buffalo. bullet and compares the penetration that results from impact speeds varying A-Squares Hannibal and Caesar rifles built on Enfield P14 actions. And when one tests the [27] However apart from these species, North American big game does not require cartridges similar to the .458 Lott. Spitzer bullets with better ballistics such as the Barnes X or TSX bullet provides better down range performance over the more conventional .45 caliber (11.6 mm) bullets. 1 Tropical Rifle. The .460 Weatherby Magnum has few peers for stopping dangerous African game. What is apparent from testing is that penetration stops increasing at impact The creation of the cases began with the casting of a .458 in (11.6 mm) bullet with a .375 in (9.5 mm) shank and which weighed around 260 gr. The 458 Lott has all the power you could reasonably use and will chamber and fire 458 Winchester, which can also be downloaded to regular 45-70 balistics for hunting medium game and practice, but I know magnum mania is an incurable disease in some. After the encounter he began a search for a big-bore cartridge which would suit his needs perfectly. don't know how hard the recoil going to be. The .458 Winchester Magnum was designed to emulate the performance of the .450 Nitro Express in a standard-length bolt-action rifle. These energy and velocity values provide the .458 Lott cartridge a gain of between 50–100 yd (46–91 m) over the .458 Winchester Magnum in distance. When driven to about 1500-fps (as the 45-70 will May 8, 2015 - .458 Winchester Magnum, .458 Lott and .460 Weatherby Magnum. The .458 Lott is also considered a better cartridge for dangerous game hunting than the .470 Nitro Express when judged by its effects on big game.[3]. lbs is quite an increase in footpounds over the lott at 2300ft/sec. The ability to reload ammunition to lower velocities with lighter bullets can provide shooters with ammunition with less recoil than the full power .458 Lott ammunition. Elephant require a bullet of a tough construction which will not deform easily. This performance increase provides better penetration and stopping power than the .458 Winchester Magnum against dangerous game. However, A-Square and few other ammunition manufacturers provide a ghost shoulder for the cartridge which was not included in the specification as standardized by SAAMI. of the 458 Winchester Magnum) one finds that the penetration is reduced to [10][18] The .458 Lott chamber will not accept an improved cartridges like the .450 Ackley Magnum and the .450 Barnes Supreme. Larger volume cases such as the .460 Weatherby Magnum do not do well with powder charges below the recommended minimums. This is not due to any However, the mono-metal bullets fall short of this velocity threshold due to the need to seat the bullets deeper owing to the length of the bullets and the need to stay within the maximum overall length specification of the cartridge. Ovny, if you haven't shot your 458 Lott, I would suggest you do so. The specifications for the .458 Lott call for a cartridge which gradually tapers. Too loud. According to Arthur Alphin, the cartridge length was standardized at 2.800-inch (71.1 mm) and the chamber length at 2.810-inch (71.4 mm) because there were many converted rifles in the field that were chambered for the original Jack Lott length. The .458 Lott cartridge's maximum overall length is only .3 in (7.6 mm) longer than the standard length magnum cartridge like the 7mm Remington Magnum and the .300 Winchester Magnum. It is considered a highly reliable action for its ability to function dependably under adverse and stressful conditions. The .458 Winchester Magnum was originally supposed to duplicate the performance of the .450 Nitro Express which could fire a 500 gr (32 g) bullet at 2,150-foot-per-second (660 m/s). The .458 Lott does well with hardcast lead bullets. There's a pile of people who have written comments and opinions about the 460 Weatherby Magnum, and most of them head off in the direction of whiny complaints. In South Africa, where the local Denel Somchem powders are readily available, none of the powders have the capability of launching a 500-grain (32 g) bullet at 2,300 ft/s (700 m/s). CZ currently produces the CZ 550 American Magnum rifle in that chambering. Several factors contributing to its less than stellar performance in Africa: clumping of its compressed powder charge[2] and use in 20–22 in (510–560 mm) barrel rifles. Handloaders can take advantage of the wide range of bullet of useful weights are available in .45 caliber for the .458 Lott cartridge. Too much recoil. [1] However, it soon became apparent that the .458 Winchester Magnum was not performing as anticipated. one drives non-expanding solids the deeper they penetrate. The ghost shoulder serves to provide better retention of the bullet in the case under recoil. We see produce the least penetration. [7][8][16], The straight tapered case of the .458 Lott provides greater flexibility in reloading to lower velocities than bottlenecked cartridges. [2], Prior to the arrival of the .458 Lott there were a few other .45 caliber (11.6 mm) cartridges with similar performance levels based on the full length .375 H&H Magnum case such as the .450 Ackley Magnum, .450 Barnes Supreme, .450 Mashburn Magnum and the .450 Watts Magnum. new 458 Lott also achieves greater kinetic energy as a result of its higher Find 460 Weatherby Mag Ammo for sale, in-stock and ready to ship at Ammo Freedom. Although higher velocity deeper penetration, and when the velocities reach the levels common to today's [36] A-Square currently loads this cartridge with a 465-grain (30.1 g) bullet at 2,400-foot-per-second (730 m/s).[37]. Necking up the .378 Weatherby to hold .458-inch bullets, Weatherby surpassed the energy figures of the largest cartridges, to create the most powerful cartridge of all. Mauser makes .458 Lott rifles in several models in their M 98 and M 03 Rifle lines.[29]. However, anyone who takes the time to run comparative penetration pursuit of the heaviest game. Weatherby also entered the .458 game in 1957, with their .460 Weatherby Magnum. ... .458 Lott.460 Weatherby magnum.470 Capstick.470 Nitro express La Trophy bonded Bear Claw retrouvée dans la girafe. The cartridge is capable of firing a 500-grain (32 g) bullet at 2,300-foot-per-second (700 m/s) from a 23-inch (580 mm) barrel such as the Ruger M77. velocity, and this is also a convincing characteristic for those brave souls in The result was a .458 Winchester Magnum that was now attaining only about 1,950-foot-per-second (590 m/s). However, the .458 Lott has a longer case length (2.8″ vs 2.5″) and a longer overall length (3.6″ vs 3.34″). For instance, a CZ 550 Safari Magnum chambered in .458 Lott is a capable rifle at both short range and out to about 200 yards, is very reliable, holds six cartridges (five in the magazine and one in the chamber), weighs less than 10 pounds with a scope, is an excellent dangerous game-stopper, and can be purchased for less than $2,000. Several other manufacturers also offer rifles chambered in the cartridge as a regular or custom offering. The objective behind the design of the .458 Lott was to provide a greater case capacity over the .458 Winchester Magnum so as to provide better performance and less compression of the powder charge. SAAMI recommends a 6 groove rifling contour with each groove being .150-inch (3.8 mm) wide. These requirement reduce the useful choices to solid bullets. Ruger chambers the .458 Lott in the Ruger No. The reasons why high impact speeds reduce penetration are not well This is a particular concern outside North America where only particular lines of cartridge powders are available, sometimes of local manufacture. In today's video, I will take a look at the Weatherby Mark V chambered in 460 Weatherby Magnum. In 1956, Winchester saw an opportunity. Winchester reasoned these American hunters … Many rifle makers like CZ, Hartmann & Weiss, Heym, Holland & Holland, Mauser, Kimber, and Westley Richards are turning out rifles made on Magnum Mauser 98 action in this cartridge. It is considered an ideal cartridge for hunting African dangerous game and is capable of taking game from elephant to the duiker. Larger volume cases such as the .460 Weatherby Magnum do not do well with powder charges below the recommended minimums. Loaded with lighter bullets with better ballistic coefficients at higher velocities the .458 Lott can be used as a medium-range plains game rifle cartridge.[26]. It would mean a custom barrel installed by a gunsmith. Recommended rifling twist rate for this cartridge is 1-14 in. For this reason several rifles which were formerly chambered for cartridge like the .375 H&H Magnum and the .458 Winchester Magnum were easily converted to the .458 Lott early on when .458 Lott rifles were only available as a custom offering. about 4 to 4 and 1/2 feet. The .458 Winchester Magnum was designed in 1956 and was an immediate commercial success. These conversions required no more than a re-boring or a re-barreling and perhaps a magazine extension if required. The original .378 Weatherby Magnum parent case was inspired by the .416 Rigby. Due to its development and purpose, the performance of the .458 Lott is often compared with that of the .458 Winchester Magnum. assertion that higher speed projectiles are more capable of inflicting the deep not take a back seat to any other 458 caliber, especially when the game is Winchester's remedy was to lessen the compression of the powder column. It is commonly believed African guides don't like them. What the .458 Lott lacks in velocity and energy compared to the .450 Rigby or the .460 Weatherby Magnum, it more than makes up for by virtue of its versatility. The Mauser style action has long been favored by African hunters. [19] The range of available bullets provides the flexibility to customize loads for specific game species. [30] Weatherby offers the .458 Lott cartridge in Mark V Deluxe and also through their custom shop. The .450 Barnes supreme cannot be fired in the chamber of the .450 Ackley as there are minute dimensional differences which may prevent the cartridge from chambering. understood. The .458 Lott was designed to be an African dangerous game rifle cartridge particularly for use against heavy, thick-skinned dangerous game such as elephant, Cape buffalo and rhinoceros. This led to the creation of a new cartridge named the .458 Express by its designer Dr. Koos Badenhorst. Fortunately for all of us who shoot the 45-70, it can be considered to be the The .458 Winchester Magnum can be fired in the chamber in an emergency. higher velocity than the 458 Winchester Magnum. This case provided the capacity necessary using Somchem powders such as S321 and S335 to drive the 500-grain (32 g) to 2,300 ft/s (700 m/s). from about 1500-fps to 2500-fps, one finds that the higher impact speeds While the Lott achieves this velocity, the powders used may not be available in most locales. .458 Winchester Magnum vs .458 Lott: Cartridge Sizes. [21] Bullets which are chosen must have sectional densities of over .300 while a sectional densities of .330 are preferred so as to provide the necessary penetration on these, the largest of the terrestrial mammals. With lesser FMJ bullets only heart, lung or shoulder shots should be considered. After World War Two, Americans flocked to Africa to hunt, but the only suitable dangerous game rifles were either special, magnum length bolt-actions chambered for cartridges such as the .416 Rigby or expensive double rifles which fired hard to come by Nitro Express rounds. Description.458 Lott 500 Grain Nosler Partition- The .458 Lott is a .458 caliber belted hunting cartridge designed as a replacement for the less powerful .458 Winchester Magnum.It is based on the full length .375 H&H Magnum blown out and shortened to 2.800 inches. same bullet at the blistering speeds characteristic of the mighty 460 Weatherby Of course, the The fire-formed cases were then run through a .458 Winchester Magnum full length re-sizing die with a set off of .125 in (3.2 mm). particular inherent superiority, but due to the 45-70's "inability" The specifications published by SAAMI reflect this fact. This is due to the erratic ignition and hangfire issues experienced when large capacity cartridges are loaded with small powder charges. Blaser manufactures the Blaser R8 Safari PH and Safari Luxus rifle models in the .458 Lott. The Lott cartridge was a distinct step up from the .458 Winchester Magnum and the .450 Nitro Express cartridges. [3] Most .458 Lott chambers will accept the .450 Watts cartridge as the chambers are reamed to accept a 2.850-inch (72.4 mm) cartridge. [20] This is especially true if the classic brain shot is contemplated when hunting elephant where the bullet must penetrate through the honeycombed bone structure of the frontal area of the elephant's skull. CZ's Brno ZKK602 was one of the first rifles manufactured which was chambered for the .458 Lott. When one tests the same bullet at 2300-2400 fps (as is characteristic of the 458 Lott) one finds that the penetration comes up nearly 20% short of that produced by the 458 Winchester. In North America, it would make a fine big bear and bison rifle. A-Square, Česká Zbrojovka/Brno, Hornady, and Ruger have been instrumental in the cartridge's rise in popularity. Hence, the reason for companies such as A-Square loading the .458 Winchester Magnum and even the .458 Lott with the 465 gr (30.1 g) Monolithic Solid instead of the 500 gr (32 g), which is reserved for cartridges with large powder capacities such as the .450 Assegai and the .460 Weatherby Magnum. This is due to the erratic ignition and hangfire issues experienced when large capacity cartridges are loaded … The most powerful chambering the the Ruger #1 came in was the .458 Lott and .458 Winchester Magnum. [36], The .450 Ackley Magnum was designed in 1960 by Parker Otto Ackley. This, [3][14] Hornady's Superformance ammunition being an exception which uses powder blends which at present remain proprietary. Lott is an improvement over the 458 Winchester Magnum since its higher velocity With these bullets the Lott can be loaded to the power level of the original .45-70 Government cartridge. supposedly results in more lethal impact-effect and deeper penetration. A-Square Lion Load bullet or soft points manufactured for the .45-70 Government fills this niche for the .458 Lott. .458 Winchester Magnum. In an emergency, the .458 Winchester Magnum can be fired in the chamber of a .458 Lott. Bullets ranging from 300–600 gr (19–39 g) can be loaded for the Lott cartridge. The better ballistic coefficients translate to better longer range performance. Like A-Square .458 Lott cartridges, Barnes .458 Lott brass bears a ghost shoulder for this very same reason.[7]. You are looking at $350 to have it rebarreled and a barrel for $350 more. La douille du 458 WM est basée sur celle du .375 Holland & Holland. This method of fireforming left the newly formed cases slightly shorter than the parent cases. My thoughts are that the vast majority of the writers have never seen, let alone fired, a 460. The .458 Lott was standardized by SAAMI in 1995 based on specification provided by Arthur Alphin and A-Square LLC. 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