jeffbird,
I have done dozens of tests like you describe with antlers, or other "practical" objects. But the problem I eventually ran into is that unless have a bunch of scopes lined up to test at the same time, then there's no way to correlate results from one scope in, say, 2012 with another scope in 2015. Then there's the problem of light conditions changing from test to test.
Which is exactly why I came with this test, which not only uses a standardized chart at the same range every time, but the same minimal amount of artificial light. I can assure you that it does carry over to aiming at game.
