No worries there, mate! The blood around the nostrils tells the story too.

In my experience it is rare to dump a big animal like a buffalo with one shot from anything. The .416 calibre is marvellous for big bovines, and delivery to the point of the shoulder is just about perfect with premium bullets. On a number of occasions I have deliberately shot high for the spine, where it dips down between the shoulder-blades, both from the front (into the 'adam's apple' under the chin when he looks down his nose at you) and from the side. Its the only reliable 'one shot stopper' on a buff IMO, but they still usually need another behind the ear on the ground to finalise the encounter. I use doubles mainly these days, so any quarry usually gets a quick 'right-and-left' regardless, followed by a hasty reload!

You and your .416 will fit in here just fine, Jorge.