I was quite surprised on some of them. I'd have shot the last croc in the spine, not the brain. Most of the others, I had well inside the heart, except a little low on the buffalo.
I found the video very well done and especially for someone going to Africa.
The bears were good too, but with them, instead of heart, I'd be breaking them down, not so much a black bear, but especially the griz. Both shoulders/front legs broadside - done. the ctg. choice for them, bit big for black bear, spot-on for griz, although an '06 or even a well loaded 6mm will do it easily on most B Bears, there are some outsized monsters in Eastern USA and on Haida Gwaii - well over 700pounds.
Around here, a huge one might run 400.
Reminds me, my .45 cal. SamYang air rifle is legal for black bear here. I would, however never try it on one except on a very small 'eating size' 150 pound 2 or 3yr. old "cub".
Then again, would you walk through the bush here with an air rifle looking for a black bear? - LOL.