The .458 Lott was born out of the need for a dangerous game cartridge with more modern ballistic characteristics than the alternative rounds that were available at the time. To fire a 500 gr bullet at the required velocities and energies for hunting dangerous game in Africa is no small task when one has to stay within safe pressure limits. The 458 Lott achieved this by elongating the case and thus avoiding problems with overly compressed powder charges as well, which had plagued some of the competing cartridges.

Norma Unprimed Brass is world renowned as being the absolute highest quality brass available. These cases start off with the best possible raw materials with the narrowest tolerances. The case necks are annealed to soften the brass and prevent gas leaks the case body is at the optimum hardness to avoid any unnecessary stretching. New, unprimed brass that features chamfered and deburred case mouths and a punched flash hole (magnum calibers are drilled). These cases should be sized before loading.

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