British Cartridges
500-416 Nitro Express
I have little information on this new cartridge, It appears to have been invented by Mr. Krieghoff in conjunction
with German specialists in big bore ammunition for the Krieghoff side by side double rifle, which sells for $14,000.
The 500/416 ballistics are equal to the 416 Rem Mag and the 416 Rigby, with less pressure.
If anyone has more information on this new cartridge , please feel free to enlighten me.