I should rephrase that admittedly. Graphs are of course very useful, your original post showed a factual reference to pellet sizes in mm etc, BUT there is no PROOF that 2.2mm pellets run out of puff at XYZ range, that is very much conjecture and bull I'm afraid.Hamster how can you say there is no proof behind graphs, do people make things up, a graph is a depiction of results from tests that make it easier to view the results.
There are indeed all sorts of references and quotes about this subject many of which will have you know that English 8's aren't up to anything beyond 35 yards :.: :.: , many emanating from the US where 2.4mm is routinely used even for Sporting, but it IS BULL as we know. So when I say proof I mean show me a verifiable real world test anywhere in the world that has shown 2.2mm pellet from a mid to fast shell won't break an edge on clay at well over 40 yards and I'll take you out and show you different.
Writing down stuff and plotting them on a graph may impress some but not all of us. Real life often tells a different story.