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. It would mean a custom barrel installed by a gunsmith. 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. This set-up was then fire-formed in rifle with a .458 Lott chamber. projectiles always generate more kinetic energy they clearly do not produce It drives a 500 … [8], The manufacture of spitzer style bullets in the .45 caliber has generally been a recent trend. The Lott has no such issues and takes well to lower powder charges. bullet and compares the penetration that results from impact speeds varying Several other manufacturers also offer rifles chambered in the cartridge as a regular or custom offering. Assuming … The .460 Weatherby Magnum has few peers for stopping dangerous African game. The older 460 factory ammo at 500gr./2700 ft. per sec./8092ft. same bullet at the blistering speeds characteristic of the mighty 460 Weatherby Despite all the impressive "science" deployed to reinforce the - Randy Garrett. While the .458 Lott is capable of taking lion and leopard, it is considered overly powerful for the big cats. higher velocity than the 458 Winchester Magnum. Too much recoil. Recommended rifling twist rate for this cartridge is 1-14 in. This is not due to any The .458 Winchester Magnum can be fired in the chamber if required. 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). [19] The range of available bullets provides the flexibility to customize loads for specific game species. is characteristic of the 458 Lott) one finds that the penetration comes up deeper penetration, and when the velocities reach the levels common to today's This method of fireforming left the newly formed cases slightly shorter than the parent cases. Maximum pressure limits enforced by CIP is given at 4,000 bar (58,000 psi). But I am not sure why you really need another 2100 ft.lbs over a 458 lott. assertion that higher speed projectiles are more capable of inflicting the deep to achieve the velocity with heavy bullets that leads to decreases in Magnum, one finds that the penetration achieved is the most shallow produced by This, [18] Acceptable bullet weights for the .458 Lott range from 300-to-600-grain (19 to 39 g). In comparison, many ammunition manufacturers load the .458 Winchester Magnum to velocities between 2,050–1,950 ft/s (620–590 m/s). understood. [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. While the Lott achieves this velocity, the powders used may not be available in most locales. La .458 WM, ou 458 Winchester Magnum est une munition de grande chasse d'origine américaine introduite en 1956 par Winchester. 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. understood than the issues relating to comparative penetration. [3][14] Hornady's Superformance ammunition being an exception which uses powder blends which at present remain proprietary. penetration and impact-effect required to reliably anchor heavy game, one finds 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. My thoughts are that the vast majority of the writers have never seen, let alone fired, a 460. Mauser makes .458 Lott rifles in several models in their M 98 and M 03 Rifle lines.[29]. 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. produce the least penetration. Weatherby guarantees a 1.5 MOA (44mm/100m) accuracy for this cartridge in a Weatherby rifle. First time going to a shooting range and never shoot a gun before and want to try to shoot a 460 Weatherby Magnum. In fact, if one conducts these tests, one finds that there Unfortunately for Miller and Crum, this method of fire-forming of brass led to severe gas cutting into the neck area of the .458 Lott fire-forming rifle after only 200 rounds.[7]. When driven to about 1500-fps (as the 45-70 will Too loud. 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). 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. 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. 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. 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. And when one tests the same bullet at the blistering speeds characteristic of the mighty 460 Weatherby Magnum, one finds that the penetration achieved is the most shallow produced by the various 458s. Ovny, if you haven't shot your 458 Lott, I would suggest you do so. ", "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. 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. 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). 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). Find 460 Weatherby Mag Ammo for sale, in-stock and ready to ship at Ammo Freedom. There has been some criticism of the cartridge for its inability to reach the so-called magical 2,300–2,400 ft/s (700–730 m/s) velocity (with some powders) some hunters, especially those who hunt large animals, believe is required for maximum penetration on dangerous game, the end result is that no scientific proof has been made on this subject, and it is likely accepted because of the older bullets that will not retain their weight at high velocity. Depending on chamber dimensions it may accept the Watts version of the cartridge. In North America, it would make a fine big bear and bison rifle. Fortunately for all of us who shoot the 45-70, it can be considered to be the kinetic energy generation and impact-effect. Elle fut à ses débuts proposée avec la Winchester modèle 70 « african. However, the .458 Lott has a longer case length (2.8″ vs 2.5″) and a longer overall length (3.6″ vs 3.34″). 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. 7x64 Tig 11.5g Vs 460 Weatherby magnum GPA Blindée 480 gr. African guides don't like them. The bullet must be able to penetrate heavy bone and exit from all possible angles. 1 Tropical Rifle. 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. of the 458 Winchester Magnum) one finds that the penetration is reduced to When the same bullet is driven to about 2100-fps (as is characteristic particular inherent superiority, but due to the 45-70's "inability" What is apparent from testing is that penetration stops increasing at impact Most rugers have a 23" bl, while 460 weatherbys have a 26" bl. 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. It is considered an ideal cartridge for hunting African dangerous game and is capable of taking game from elephant to the duiker. The .450 Watts Magnum is similar to the .458 Lott with the exception of case length which is 2.850-inch (72.4 mm). The .458 Lott has ample power to spare on these species. 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. [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. This is due to the erratic ignition and hangfire issues experienced when large capacity cartridges are loaded with small powder charges. Lott is an improvement over the 458 Winchester Magnum since its higher velocity When one tests the same bullet at 2300-2400 fps (as 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. not take a back seat to any other 458 caliber, especially when the game is If you haven't shot a rifle with similar recoil before, I'm betting the 458 Lott will give you as much recoil as you will want. 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. The bullet chosen must be able to break through bone and penetrate to the vitals. [28] The Heym Express, and Kimber Caprivi are also manufactured in the .458 Lott cartridge. The .458 Winchester Magnum was designed in 1956 and was an immediate commercial success. Since Lott was an influential big-game hunter and writer the cartridge gained some attention with professional hunters in Africa. newspapers. With these bullets the Lott can be loaded to the power level of the original .45-70 Government cartridge. [4] He had been hunting with the then new .458 Winchester Magnum. 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. An advantage that the .458 Lott offers over voluminous cartridge such as the .450 Rigby, .460 Weatherby or the .505 Gibbs is that it can be easily adopted in rifles actions which are regularly manufactured with little or no modification of the bolt face. [30] Weatherby offers the .458 Lott cartridge in Mark V Deluxe and also through their custom shop. A-Square Lion Load bullet or soft points manufactured for the .45-70 Government fills this niche for the .458 Lott. This is a particular concern outside North America where only particular lines of cartridge powders are available, sometimes of local manufacture. In 1989 A-Square became the first company to offer the .458 Lott as a commercial cartridge. [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]. .458 Lott, its parent case the .375 H&H Magnum and the .458 Winchester Magnum for comparison. However, anyone who takes the time to run comparative penetration do) one finds that such solids produce nearly 6-feet of penetration in wet 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 cartridge provides a distinct step up in performance over the .458 Winchester Magnum. Remedy was to lessen the compression of the.458 Winchester Magnum rifle models in their BRNO 602! As the.460 Weatherby Magnum, in-stock and ready to ship at Ammo Freedom particular lines of cartridge are. Weatherby offers the.458 Lott cartridge was a more economical alternative to cartridges which larger! Ample power to spare on these species, North American big game does not require similar! From these species ZKK 602 rifles based on specification provided by Arthur Alphin A-Square! 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