I've shot literally hundreds of thousands of arrows over the past 52 years and I've only got 7 robinhoods with my traditional bows. All but one of those came between 35-60 yards. That one was at 20... first two shots from a brand new half dozen 2216's. [:@]

I've done 8 with my compounds, just for the record.

Just going by my own experience, I'd say the odds are pretty darn low. [8D]