Of 20 different African species that I’ve rifle hunted, all mine have been shot with some form of Federal factory load, and 19 with the .375 H&H. Most have been with the TBBC. I’ve also shot the Woodleigh Hydro Solids (2nd shot on a buffalo, and a Dik-Dik), and Swift A-Frames (Lion and Zebra).
I was impressed with both of their performance as well, but couldn’t find more than a box or two anywhere, which is why I didn’t shoot as many animals with them. 300gr TBBC is loaded way more frequently and on a larger quantity than the other offerings. I’ve put multiple rounds of 300gr TBBC into a buffalo and also been impressed with performance.
Should you need, I have some 300gr Trophy Bonded Sledgehammer Solids posted in the classifieds. A lot of people have told me they shoot very close to the same as the TBBC in the same grain weight but I personally haven’t tried them side by side.