H I have a GL book here and it includes that very cartoon.He`s very good that bloke.

Here is another photo for the poorly sighted.

Its sort of anywhere in the box with a good calibre, of course we really know there are plenty of spots outside the box too ha ha.
But I can say a 30 cal 180 of good construction will do the job.
If people cant hit that box with an off the shoulder shot at 100-200 they need to practice a lot more.