The 9.3x62 lacks penetration and should not be used on nil gain or on dangerous game.
Indeed the 350 rigby would have been the ideal cartridge for Nilgai.
I'd like to hear more about this, please tell us of your experience here.
Any medium rifle will do the job but here the h&h does it better and with little fuss. Forget your American calibres,
Would that include the 35 Whelen?
The best rifle is one which is forgiving, has excellent penetration, deviates minimally in thick brush and packs a punch.
And this too.....
How does a rifle deviate minimally in thick brush? What is forgiving about it?
Please inform us sir.