It would have been more successful but the reintroduction of the two .450/400 chamberings effectively removed the need for it.

I looked seriously at it, for one day when it was possible. But comparing the recoil of a .500/416 to a .450/400 shows it recoils similar to a .450 or .470, for only a small smount of extra velocity. And probably a heavier rifle than in a .450/400.

So the choice would be for a .450/400 or a .500/416, heavier and recoiling more, for a 400 gr. Or a .470 / .450 with 500 gr bullets compared to a .500/416 with 400 gr bullet with the .416 being less effective.

So my future ambitions steered more to the traditional .450/400 chambering in hopefully a slightly more handy rifle.