I think it would be very cool to take a slug gun to Africa. The modern day accuracy and performance of slug guns and sabot ammunition put them on another level of effectiveness. I wouldn't even feel undergunned on leopard or lion, if it were legal of course.
I read somewhere that a guy from Illinois killed an elephant with a broadside shot and a specially loaded by Hornady copper slug. I'll have to see if I can find the article.
I have a Browning Gold and a slug barrel that I would have loved to take but it isn't legal anywhere I don't believe. Then again I think I've seen people take semi-auto's to SA.
Living in a slug only state, I’ve built a lot of high end slug rifles over the years pursuing ever more accuracy and precision. By quality and features, the ones I build are superior to BOTW and TarHunt by a significant margin. (Although I do use tarhunt barrels)
All that to say, owning and building slug rifles that cost more than my first several cars each, it’s a very dumb weapon for a safari. I’d run out of digital ink before I could list all the reasons it’s a terrible idea. A few random ones:
All slug guns feed for crap. You throw that bolt wrong and you’ve got a jam.
The sensitivity to recoil is profound on the ammo. You “top off” once or twice and the accuracy of the 2nd round is seriously compromised by the jarring under recoil. (Bullets slide around in the hull)
The velocity swings due to temperature are significant with most loads. A 20fps swing is many inches even at relatively close ranges.
the bullets that are most accurate (e.g. accutip sabot 260gr) are very soft, designed for expansion into 200lb deer. They are not designed for elk or African game.
Due to significant drop, precise laser range finding is essential. It’s not a 375 where you just aim for the vitals and pull the trigger. All mine have custom burned turrets so they are viable hunting tools.
they are the most fickle of all guns for ammunition. That one load is the only load that regulates. You may wait 2 years to find a case of that ammo. You won’t find any ammo in Africa of any sort compatible if you lose your ammo.
The two round magazine capacity is not optimal for Africa.
I’ll stop there for now, but I’ll give you a hundred more reasons if you’re not persuaded. For the same price as one of my custom 20 gauge slug rifles you can own a nice London rifle in 375 that’s 10x more accurate and doesn’t look like a POS.