I have an Alaskan with a 23" barrel instead of the 20". Stainless. came with the laminated stock. I put it in a Hogue.
seems like it took some of the sting out of the recoil. put a Leupold 1.75 -6 on it. took it to Alaska for a black bear hunt.
killed the bear plenty good. it shoots 300 gr partitions and about anything else into an inch or 2 at 100. got it from CDNN
in 2015. I don't know how many 23" Alaskns they made but I like it better with the longer barrel. my guide had the 20" version.
For Alaska I don't think you could do much better than 375 Ruger. I sure it would work just as well in Africa.