nic,, Over ten years ago, I participated in a bullet testing project where we loaded .458 commercial hard cast, Nosler protected point, FMJ Kodiak heavy jacket, NF Mono FPS, and Punch solid brass with lead filled base. Using Miroku/Winchester 1886 rifles (45-70 and 45-90),we test fired all these here in Texas(Punch shot through 5/8 inch steel plate) and then took them to Africa and used them on plains game, leopard, buffalo, and ele. The project was a lot of fun , but for any experienced big bore shooter, the results were no great surprise. Results were: -Nosler PP at 2200 fps MV dropped all PG and Leopard in their tracks from either rifle; with devastating entry and exit wounds. -Hard cast killed all up through buffalo BUT on buff, some smeared, broke apart , and deviated course. Therefore we did not try on ele. -Kodiak FMJ at 2150 fps MV from .45-90 was wonderful on buff, shooting through many. BUT. on ele frontal brain shot at 20 yards, it mushroomed and did not penetrate the brain, knocking the ele to its knees, but not killing it. Not recommended for ele! - Monolithic solids shot through all animals but ele; On frontal brain shots, they shot through head and on into body beyond. Highly recommended for ele and hippo, but use great care on lesser animals as they usually shoot through two buff or more. At no time was the cast bullet challenged by anyone. The total report was updated daily from Africa on Leverguns.com. Upon return, the results were summarized with many pix of bullets. This was all the bullet research any of us needed to decide what bullets to use in Africa. All ammo was either custom loaded by Grizzly Cartridge or hand loaded by our team. None of that was questioned either. Nuf said.