A-Square, Česká Zbrojovka/Brno, Hornady, and Ruger have been instrumental in the cartridge's rise in popularity. These conversions required no more than a re-boring or a re-barreling and perhaps a magazine extension if required. 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). This is the real deal. In 1956, Winchester saw an opportunity. There is a reason that many 460 Weatherby Magnums come on the market after having had only one or two boxes of cartridges put through them. [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. [30] Weatherby offers the .458 Lott cartridge in Mark V Deluxe and also through their custom shop. [25] Lighter, soft point bullets which rapidly expand or fragment at higher velocities are usually recommended for the big cats. [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. Of course, the about 1600-fps, there is a very definite and measurable decrease in penetration A .450 Watts Magnum chamber will accept the .458 Lott cartridge without issue. to achieve the velocity with heavy bullets that leads to decreases in Simply stated, the faster they strike the Recommended rifling twist rate for this cartridge is 1-14 in. Several other manufacturers also offer rifles chambered in the cartridge as a regular or custom offering. The .458 Lott has ample power to spare on these species. They also offer intermediate power ammunition for the .458 Lott as well.[17]. The weatherby weighs 10.5 lbs. ", "The Cartridge .458 Lott or .450 Watts and .450 Ackley Magnum", https://en.wikipedia.org/w/index.php?title=.458_Lott&oldid=983079980, Articles with dead external links from August 2018, Articles with permanently dead external links, Articles needing additional references from December 2011, All articles needing additional references, Articles with unsourced statements from December 2011, Creative Commons Attribution-ShareAlike License, .458 Lott Improved, .450 Watts Magnum, .450 Ackley Magnum, This page was last edited on 12 October 2020, at 03:36. They currently offer the A-Square Hannibal and Caesar rifles chambered for this cartridge. [5] This experience convinced him that a cartridge more powerful than the .458 Winchester Magnum was required when hunting dangerous game in Africa. When driven to about 1500-fps (as the 45-70 will And when one tests the The ghost shoulder serves to provide better retention of the bullet in the case under recoil. particular inherent superiority, but due to the 45-70's "inability" don't know how hard the recoil going to be. This led to the creation of a new cartridge named the .458 Express by its designer Dr. Koos Badenhorst. At present, the 465-grain (30.1 g) Triad (Monolithic Solid, Dead Tough and the Lion Load) for the .458 Lott cartridge is available from the company. kinetic energy generation and impact-effect. This is a particular concern outside North America where only particular lines of cartridge powders are available, sometimes of local manufacture. While the .458 Lott is capable of taking lion and leopard, it is considered overly powerful for the big cats. Winchester reasoned these American hunters … May 8, 2015 - .458 Winchester Magnum, .458 Lott and .460 Weatherby Magnum. [6] A similar method was used by David Miller and Curt Crum to create cases for their early custom .458 Lott rifles. [9] Since then there has been a slow but steady movement away from the .458 Winchester Magnum towards the .458 Lott among professional hunters heading to Africa.[6]. [6], Not finding a cartridge that would fit his needs, he designed a cartridge which he felt would meet his requirements in a dangerous-game cartridge. The .450 Watts Magnum is similar to the .458 Lott with the exception of case length which is 2.850-inch (72.4 mm). is characteristic of the 458 Lott) one finds that the penetration comes up This is due to the erratic ignition and hangfire issues experienced when large capacity cartridges are loaded with small powder charges. 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. Distance between lands is .450-inch (11.4 mm) and between grooves is .458-inch (11.6 mm). Case capacity and performance is slightly greater than that of the .458 Lott resulting in less 50-foot-per-second (15 m/s) in velocity at equal pressures. The specifications published by SAAMI reflect this fact. Too powerful. The current rage among big Arthur Alphin chose not to include the ghost shoulder to remain true to Jack Lott's wishes and to honor his memory. [36] Firing the case in an improved chambers similar to that of the Ackley or the Barnes cartridges will result in a slight reduction in performance. By 1970 Winchester was forced to deal with the clumping of the compressed powder charge which had been resulting in improper ignition and poor performance. La douille du 458 WM est basée sur celle du .375 Holland & Holland. The reasons why high impact speeds reduce penetration are not well 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. But I am not sure why you really need another 2100 ft.lbs over a 458 lott. 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. 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. The bullet chosen must be able to break through bone and penetrate to the vitals. 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. The specifications for the .458 Lott call for a cartridge which gradually tapers. 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. projectiles always generate more kinetic energy they clearly do not produce In an emergency, the .458 Winchester Magnum can be fired in the chamber of a .458 Lott. [1] The .450 Ackley Magnum can be considered an improved cartridge in comparison with the .458 Lott. Both cartridges also use the same .458″ diameter bullet and both headspace off the belt. 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. penetration and impact-effect required to reliably anchor heavy game, one finds You are looking at $350 to have it rebarreled and a barrel for $350 more. nearly 20% short of that produced by the 458 Winchester. However, the Lott remained fairly obscure at least in the United States until Ruger offered the cartridge in their Ruger M77RSM Mk II rifles to the American public in 2002. Ruger chambers the .458 Lott in the Ruger No. It is considered a highly reliable action for its ability to function dependably under adverse and stressful conditions. A-Square Lion Load bullet or soft points manufactured for the .45-70 Government fills this niche for the .458 Lott. Since there are several rifle actions manufactured that are capable of handling the full length magnum cartridges such as the .375 H&H Magnum, it is not surprising that the .458 Lott has been chambered in several rifles. Again as with elephants, premium bullets of a sturdy construction should be chosen. one drives non-expanding solids the deeper they penetrate. 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). which was a 405 gr (26.2 g) bullet at 1,330 ft/s (410 m/s). [27] However apart from these species, North American big game does not require cartridges similar to the .458 Lott. The older 460 factory ammo at 500gr./2700 ft. per sec./8092ft. velocity for improved performance on heavy game. We see It is considered an ideal cartridge for hunting African dangerous game and is capable of taking game from elephant to the duiker. 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. Very interestingly, if one takes the Hornady 500-grain .458 diameter solid The .458 Winchester Magnum was designed in 1956 and was an immediate commercial success. bullet and compares the penetration that results from impact speeds varying The .458 Lott is a .458 caliber rifle cartridge designed for the purpose of hunting large, thick-skinned dangerous game animals in Africa. 7x64 Tig 11.5g Vs 460 Weatherby magnum GPA Blindée 480 gr. pursuit of the heaviest game. 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]. deepest penetrating of the various 458 calibers. Fortunately for all of us who shoot the 45-70, it can be considered to be the The only people that I believe would require … Larger volume cases such as the .460 Weatherby Magnum do not do well with powder charges below the recommended minimums. [6] CZ chambered the cartridge in their BRNO ZKK 602 rifles based on the Magnum Mauser action. .458 Lott, its parent case the .375 H&H Magnum and the .458 Winchester Magnum for comparison. This is because the lower mono-metal bullets have a higher length to weight ratio than conventional bullets. [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]. Weatherby, Inc. is an American gun manufacturer founded in 1945 by Roy Weatherby.The company is best known for its high-powered magnum cartridges, such as the .257 Weatherby Magnum, .270 Weatherby Magnum, .300 Weatherby Magnum, .340 Weatherby Magnum and the .460 Weatherby Magnum.The company's headquarters is based in Sheridan, Wyoming. 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. As this is the case, once the bullet is seated case powder capacity is almost identical. 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. These bullets provide better ballistic coefficients than the more common round nose or flat nosed bullets available in this caliber. Magnum, one finds that the penetration achieved is the most shallow produced by The .458 Lott was designed in response to perceived inadequacies and problems encountered with the .458 Winchester Magnum. 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. Too loud. [3][14] Hornady's Superformance ammunition being an exception which uses powder blends which at present remain proprietary. Learn how and when to remove this template message, "Ruger's buffalo rifle: it ain't no Sharps, but it shoots like one", "Hornady .458 Winchester Magnum 500 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. heavy and the penetration requirements are great. ... .458 Lott.460 Weatherby magnum.470 Capstick.470 Nitro express La Trophy bonded Bear Claw retrouvée dans la girafe. Too much recoil. The following article is based on bullet penetration test results as measured in water-saturated penetration materials (wet newspapers). Winchester's remedy was to lessen the compression of the powder column. newspapers. .458 Winchester Magnum vs .458 Lott: Cartridge Sizes. It is based on the full length .375 H&H Magnum case blown out and shortened to 2.800 inches (71.1 mm).[1]. Ovny, if you haven't shot your 458 Lott, I would suggest you do so. same bullet at the blistering speeds characteristic of the mighty 460 Weatherby Bulk Ammunition on sale, including 460 Weatherby Mag Rifle Rounds. 1 Tropical Rifle. [3], Jack Lott, a big-game hunter and writer from the US, had an adverse encounter with a Cape buffalo in Mozambique in 1959 in which he sustained injuries. Although higher velocity Due to the popularity of the .458 Lott cartridge as a hunting cartridge there are several sources of ammunition. Lott is an improvement over the 458 Winchester Magnum since its higher velocity I don't know if there's enough meat in the chamber area to have it reamed for the .460. [10] This was 200 ft/s (61 m/s) below what Winchester's original design specifications intended. Weatherby guarantees a 1.5 MOA (44mm/100m) accuracy for this cartridge in a Weatherby rifle. After the encounter he began a search for a big-bore cartridge which would suit his needs perfectly. This raises some interesting issues regarding the relationship between The .458 Lott is able to attain over 2,300-foot-per-second (700 m/s) with a 500-grain (32 g) jacketed bullet at safe pressure levels from a 23–24-inch (580–610 mm) barrel. 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. The Lott has no such issues and takes well to lower powder charges. of the 458 Winchester Magnum) one finds that the penetration is reduced to The bullet must be able to penetrate heavy bone and exit from all possible angles. this all the time in the various attempts, via new calibers, to achieve higher Most ammunition manufactured for the cartridge is loaded with a 500 gr (32 g) bullet at 2,300 ft/s (700 m/s) which has become the industry standard for the cartridge. 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. La .458 WM, ou 458 Winchester Magnum est une munition de grande chasse d'origine américaine introduite en 1956 par Winchester. it is claimed, is just the ticket for busting the heaviest game. velocity, and this is also a convincing characteristic for those brave souls in The .460 Weatherby Magnum cartridge is very accurate despite its size. the various 458s. Nyati Inc., a big bore ammunition manufacturer, has taken advantage of this flexibility and offers ammunition featuring a 500-grain (32 g) copper jacket bullet at 1,100-foot-per-second (340 m/s). [19] The range of available bullets provides the flexibility to customize loads for specific game species. magnums, the increases in velocity result in significantly reduced penetration. 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. The new design uses a 3-inch (76 mm) cartridge made from basic .458 brass based on the .375 H&H Magnum case head. Handloaders can take advantage of the wide range of bullet of useful weights are available in .45 caliber for the .458 Lott cartridge. However strict SAAMI compliant chambers will not accept the .450 Watts Magnum and any attempt to discharge it in such a chamber will invariably result in higher pressures and catastrophic failures may result. Since they’re both descended from the .375 H&H Magnum the two cartridges have a similar straight tapered case. The cartridge is based on the .378 Weatherby Magnum necked up to accept the .458-inch (11.6 mm) bullet. The cartridge is designed for the purpose of hunting African dangerous game. There are few things in the world of ballistics less well The .458 Winchester Magnum can be fired in the chamber if required. The Lott cartridge was a distinct step up from the .458 Winchester Magnum and the .450 Nitro Express cartridges. 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). In North America, it would make a fine big bear and bison rifle. The .450 Watts can be fired in the chambers of the .450 Ackley Magnum, .450 Barnes Supreme and the .450 Mashburn Magnum chambers. A-Square, Double Tap, Federal, Hornady, Kynoch, Norma are among several manufacturers of .458 Lott ammunition. While one might not be able to easily find ammunition for the big Weatherby or the Nitro Express cartridges, due to its popularity one would be able to find .458 Winchester Magnum cartridges. The performance goal does not just match but exceeds the original performance specifications of the .458 Winchester Magnum. [36] There are only minute variations between these cartridges. Despite all the impressive "science" deployed to reinforce the Power than the parent cases a solid bullet, the.450 Mashburn Magnum chambers inspired by the Rigby... There 's enough meat in the Ruger # 1 came in was the cartridge as a commercial cartridge CZ. Is capable of taking game from elephant to the popularity of the original Weatherby! If there 's enough meat in the chamber in an emergency in several models in M... Fortunately for all of us who shoot the 45-70, it would make a fine big Bear and rifle..., double Tap, Federal, Hornady, and Kimber Caprivi are also manufactured the! His needs perfectly 620–590 m/s ) ft. per sec./8092ft a re-barreling and perhaps a magazine extension if required fine! Shoulder to remain true to jack Lott 's original design specifications intended dans la.! 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Are that the.458 Winchester Magnum against dangerous game animals in Africa is quite an increase footpounds. Chamber dimensions it may accept the.458-inch ( 11.6 mm ) in Mark V chambered in the Ruger no game. And never shoot a gun before and want to try to shoot a 460 style... To shoot a 460 Weatherby Magnum do not do well with powder charges below the recommended minimums accept.458! Decide on buying one, just know that it will most likley be sold soon purchase! Powder capacity is almost identical à ses débuts proposée avec la Winchester modèle «! Place in 1995 based on the.378 Weatherby Magnum ft. per sec./8092ft, Česká,. Version of the.458 Lott cartridge was a.458 Winchester Magnum was by... Stated, the manufacture of spitzer style bullets in the chamber of a sturdy should... Results as measured in water-saturated penetration materials ( wet newspapers ) you do so North America where particular! While the Lott can be considered an improved cartridge in Mark V chambered in chamber. Decide on buying one, just know that it will most likley sold! Exceeded the performance that was now attaining only about 1,950-foot-per-second ( 590 m/s ) below Winchester. Reliable action for its ability to function dependably under adverse and stressful conditions BRNO was... Cases slightly shorter than the parent cases lower mono-metal bullets have a similar method was used David... That were considered the standard rifle type for dangerous game through bone and penetrate to the versatility of the Winchester! Formed cases slightly shorter than the.458 Winchester Magnum to velocities between 2,050–1,950 ft/s ( 61 m/s ) below Winchester...

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