Plaster is considered to be a moron among the long range tactical community and this paper is just more reinforcement of that notion.
Energy means nothing.
A bullet diameter pin hole is not enough.
The bullet also needs to expand and wreck some of the internals to be effective.
The general rule of thumb is 1800fps or approximately 800yards with a good long range bullet and a long barrel. The 6.5X55 would extend this a bit.
The new Accubond will extend this to well beyond 1000.