The current BOTM discussion, with references to ORVW 107, reminds me of something I've occasionally wondered about. Why are there so many "traditional" bourbons that are bottled at a proof 7 (or 14) points off of 100? Besides the ORVW, there's a Weller there, OGD 114, and a host of 86's. Has to be a reason for such an odd number; five or ten would seem more expected.
I think I've seen some reference to a reason in past threads, but I can't find it.