Just a discussion question out of interest.

Early in the twentieth century in the first decade, we saw the invention of the bolt action cartridges,the .404 Jeffery, to duplicate the .400 DR cartridges for a bolt action. Later the .416 Rigby and the .425 WR.

The big bore cartridges of the time appear to have wisely been double rifle flanged cartridges such as the .450/400, 450s, .465, .470. .500. .577 etc. Or for shorter pockets single shots in the same.

Before the very much later invention of the .458 Win Mag, were there any early equivalent calibre bolt action cartridges choices? Particularly in the .450 to .480 range?

I can think of a counter comment but will hold back.

And a couple of bolt action cartridges in a greater calibre have spring to mind.

Comments?