Hi Mbongo,

470NE or 500NE.
Everthing above gets to heavy (rifle weight) and - for most of us - has just to much recoil to handle properly.

The 600NE also seems to have a "not-so-good" repuation for penetration, especially on old tembo.

In terms of ammo availability, the .470 is *very* hard to beat in comparison, for all others you basically have to reload or be very rich.

This also applies - imho - to the various 450's:
Great bullet availability, yes, but don't expect to find a pack of those at the local gun shop in Jo'burg or Dar-es-Salaam. (You might just get lucky on a pack of 470's

)

Cheers,
500NE