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Other .458 cartridges are the very popular .458 Lott, .458 Winchester Magnum and 450 Watts. Weatherby made the .460 Weatherby which is still one of the fastest commercial cartridges available on the market in this category.
There are a vast number of .458 cartridges on the market. At Rhino Bullets at http://www.rhinobullets.co.za/ several .458 Lott and .458 Winchester Magnum owners write about their experience. The .458 Express is largely unknown outside South Africa! Hardly any writers give comprehensive reports and ballistic tests for the cartridge. In the Reloaders Nest at www.reloadersnet.com a couple of reports can be seen of the .458 Express.
This unique cartridge originated in Africa, accommodating harsh African conditions, and less efficient South African rifle powders. It has a broad spectrum of reloading options and is capable of long-range, flat trajectory shooting, or close-up Big Five hunting shots, using the heaviest of bullets available in this caliber.
A range of .458 caliber cartridges have been developed since the 1950s; the .458 Express being developed in 2000 . The .458 Express is developed in South Africa by Professor Koos Badenhorst of Haenertsburg in the Limpopo province of South Africa.
The .458 Express uses a straight wall belted case as seen in the .458 Winchester Magnum (458 Win Mag). The case length is 2.99 inches (76 mm) compared to the 2.50 inches (64 mm) of the .458 Winchester Magnum and the 2.80-inch (71 mm) case of the .458 Lott. See "Cartridges of the World - 10th Edition"
.458 diameter bullets are used in the .458 Express. The .458 Express is described by Dr. K Robertson in "Africa's Most Dangerous". He is also the author of "The Perfect Shot".
All rights for publication was obtained from Prof. Koos Badenhorst as the developer and architect of the .458 Express.