I am afraid your guide needs some more experience. In India where the Nilgai comes from anything from a .243, .270, 30.06 have taken thousands of these animals. So a .300WM is a tank for a Nilgai.. go with confidence my friend, you have what it needs.Guys I.m going on my first Texas Nilgai hunt. My guide service is unimpressed with my 300Wm. What caliber should I take? I was told cows top out at around 500lbs and shots are under 300yds.
I could use your input please