4seventy, it seems that everybody likes to talk bad about the 458 WM. No, it doesn't have the case capacity to run at 416 speeds but as stated by previous posters it can be a good shooter with the right loads. To me the 458 WM is one the most fun cartridges to shoot as it can digest anything and everything. I've used unsized 45 ACP and 45 Colt cast bullets for my plinking loads and even used the hard round ball for a quiet pest load.