Big Bore for DG or very heavy game : undoubtely
.416RM ...
- 400grs : 160yds MRD, 300grs : 200yds MRD
If you are used to shot with .375H&H you can shot .416RM (get a good stock's rifle, straight or a beat inversed)
Duplicate the famous and "Native African" Ammo .416 Rigby.
Forget the speech about pressure, we are in 2014, not in 1914 ..
.416 Ruger is quite interesting but .. it's a proprietary ammo ...
Big Bore for no DG :
short shot (100yds max) : 45-70 Hornady 325grs (Big Bore cause its diameter ... only) ,
medium shot 9.3x62 Mauser ( 170yds MRD) The most popular Native "African" Ammo with the .375H&H, the both have been created for african game !!
A dream .... Double .470NE ... just a dream ...
