About Pushfeed rifles being used on DG in the past , l made the following speculation , based on a little reading .
We know that the Mauser system was used on Virtually all British caliber Magazine rifles used in Africa up to the 1950s , when Kynoch discontinued all their centre fire cartridges. British White Hunters kept using double rifles for the big stuff , only now they were all universally in .470 NE as .470 NE ammunition was available ( since brands other than Kynoch were making it ) . American client hunters started coming to Africa with .458 Winchester Magnum Model 70 rifles which were still CRF. It was only in 1964 , after Winchester stopped making the CRF Winchester Model 70 and FN stopped using the CRF system in their " Mauser " rifles ( due to economics rather than field experience
) , that push feed rifles started being used . Weatherbys ( like the one in my article ) , Remington model 700s , and BSA .458s all got popular among American Client hunters. The White Hunters held on their .470 NE Doubles ( it was the largest caliber Double for which bullets were still available ) . The push feed popularity lasted maybe a decade before the short stroking issue starting getting noticed. By the Eighties , CRF got popular again , due to CZ BRNO turning out their excellent ZKK 602 rifles in .375 HH Magnum and .458 Winchester Magnum (many of which got rebarrelled to Lott ) .
While , there are critics of the .458 Win Mag ( Including I , myself , admittedly for certain reasons ) , l have no doubt that a Cape Buffalo would be hammered by 3-4 well placed lung shots and heart shots by 500 grain FMJs or 500 grain Monolithic solids. Or even three or four well placed 510 grain premium soft nose bullets like Swift A frames . And l think you will do great. I myself will use my .375 with Swift A frames next year for my Cape Buffalo