Firearm advice is very personal, but this is what worked for me, Once LOL. I've only taken my own firearms hunting in Africa once so far but was perfectly satisfied with two rifles, my Merkel double barrel .450-400 3" ( with 1-4 quick detachable scope) and a Verney-Carron takedown bolt action 9.3x62 with a good S&B scope. Both are accurate, capable, and reliable, and not too costly compared to some of the other options. Buffalo and plains game were taken with no worries. Both fit in one medium suitcase that didn't even look like a gun case. Made transport so much easier. If I was to bring a shotgun I'd bring a 12 ga, double barrel to match my dangerous game rifle. Two triggers, and tang safety, to keep my "muscle memory" tuned up for quick opportunities. From the limited research I've done about good African bird hunting shotguns, it seems prudent to choose a 12 ga, double barrel of some sort. Semis and pumps are not always welcome in all countries, and supply of shells is much easier to acquire in 12ga. than 20, or my favourite 16 ga.