While on safari in Botswana with Ivan Carter, I was lucky enough to try out his Heym double chambered in .600 NE.
It didn't kick so much as PUSH.
Each bullet measures three inches n length and holds 900 grains of powder.
The .600 Nitro Express was introduced in 1903 by W.J. Jeffery & Co.
It is the second largest calibre in the Nitro Express line.
Only Holland & Holland's .700 Nitro Express round is larger.