I am going on my first South African safari in 2015 and do not know what is a good caliber for baboon up to Impala. I am in gunsmithing school and am building a 375 H&H. Of course I will shoot it many times over and over before going to make sure it is 100% reliable. I know this will handle any of the bigger game I want to hunt but assume (we all know what that does) it is way to big for a baboon and monkey and some of the smaller cats I am wanting to hunt. So any thoughts on a smaller caliber? I was thinking maybe a 300H&H so I could have a matched pair. Place I am going with says .270 is their smallest caliber allowed. I do not have a good gun above .260. Any thoughts would be greatly appreciated.