I guess I'm biased toward my Rigby Farquharson in 400/350 Nitro Express but the old Rigby round is a fantastic all-around caliber (310gr. solid at 2100 fps). It was also one of John Taylor's favorite rounds and he especially liked it in a single shot such as the Farquharson. See his famous book 'African Rifles and Cartridges' classic about his praise of the 400/350.