As
@375Fox said, these are my preferred bullet, but unfortunately they're not loaded or sold as projectiles in all the calibers I shoot or it's likely the only thing I'd shoot.
I shoot the 155's in my 280AI and the accuracy is sub 1/2 MOA if I'm doing my job. Over the last 2.5 years I've used the 200gr .300WM on Elk and an Oryx in New Mexico, and the 175gr .308 on Whitetail, Hogs, and 20+ African Animals. Shots were 20yds to 480yds, and included Steenbok up to Eland with a lot of Zebras, Wildebeest, Impala, and Warthog culling and baits.
If a .25 Cal was offered I'd try handloading them for my .257Wby (currently use a 100gr TTSX in it) as well as the .250 Savage and .257 Roberts. I'd love to see a .375 Cal offered since the standard Bear Claws is so hard to find. I personally prefer the Bear Claw over the A-Frame but won't hesitate to shoot an A-Frame and have killed 2 buffalo with A-Frames. I'm not sure we need a .375 cal version of the Terminal Ascent over the standard Bear Claw, since most don't need the improved long range accuracy and expansion it brings.
IMO most on AH are using larger calibers for Africa (375, 404, 416, and 458) and without offerings in bigger calibers it's why you hear more about the A-Frames, Partitions, or Barnes bullets being used on this forum. The members that are taking their standard deer rifle to Africa for Plains Game seem to be using the same bullets they've hunted with for years. I've read a couple reports here on AH where someone shot the Terminal Ascent bullets in Africa and haven't seen any negatives. During my 2023 Eastern Cape Hunt the PH asked if I'd leave the leftover .308 rounds because he liked how well they shot and killed.