I have had a very close encounter with a wolf many years ago. The conclusion I made was, don't worry about it, if the wolf wanted one of us we have little chance.
Of course in your instance, young ones will be less skilled and that will give us an edge.
I do think it is appropriate to fire the gun. where the shot goes is another issue
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When it comes to managing wolves here in MN, the protectionists do not want a hunter to take a wolf, they are more inclined to accept trapping over hunting.
I cant quite grasp why.
Must be something about hunting/shooting being to personal???