I am not sure you can call that accurate by modern standards, but not nearly as inaccurate as some might presume. The research on that article was great, and the data was very interesting as well. I actually took the table from the text and compiled it into an Excel graph, and then added a trendline for both the aimed and area fire (as I’m going to call them). Assuming you cannot miss at point-blank range, both curves nicely match with cubic functions. With a little work, that might make for some really excellent material for a wargame or RPG:
