I have not tried the 500 yet but have a couple NEF 45-70's. When it comes down to the brass tacks, the 500 S&W can't outperform the 45-70. If you are reloading, the 45-70 has more potential for raw power. However the 500 S&W is an interesting proposition. Up here they are hard to get so far but IF and WHEN the barrels become available as an optional barrel, then I may add one. There will soon be no problem with the NEF ejecting shells as they will soon all have a mechanical extractor. The rimmed cartridges don't present that proble anyway. The 243 is by far the worst one for extrating trouble.