In France we consider it otherwise.

The owner of the trophy is the first who inflicts a DEADLY SHOT.
This rule is often used when boar hunting during driven hunts.

Of course, when a large sow is shot ( a no-no) and we noted at least 10 hits in the sievelike sow, surprisingly.............nobody else has shot a round ..........since at least a week or 2. The fear to be bashed and possibly fined.
Consequently, more and more we come to consider the owner of the trophy will be the first who hits the boar.

This question is academic concerning a lion because previously the hunters have agreed which one will shoot a trophy.