However, there is software that is supposed to be available from Horus or Kestrel (Nelsen-Kellerman) that is not available.
Contacting Kestrel yields them to tell you to call Horus Vision, and Horus Vision will completely ignore you (even when you start out VERY polite).
Kestrel also does not have current software to support Windows 7, so if you plan on hooking up you device to a laptop for programming or reading data in the field, forget about it.
Horus Vision is supposed to have a software for the 4500NV ATRAG with Blue Tooth (and I assume serial coms), but this "Gun Library" software does not exist [though it's listed in the manual for the unit].
Basically, I would consider avoiding this product if you plan on using it for more than 5 gun and/or proprogrammed batches of ammo. (I chrono all batches of ammo... So using 5 buttons on the 4500NV isn't really helpful.)
According to the documention, the Gun Library software is supposed to support MORE than 5 guns... (50)
A disappointing purchase for the intended use to be sure.
(What worse is that I was looking at this for a third party that was going to purchase about a hundred or so [extra $$$ in the budget that needed to be used], and they poopoo'ed that idea the moment we couldn't get support... and you should NEVER need to use a DoD or LE affiliation to get a response!)
If you are hunting, buy one without BT and save the cash.
I must admit that I have missed a big game animal with a rifle. And not only was it a bull elk, it was the largest bull that I have had in my sights with a tag in my hand. But, as with most "missed shot" stories, I have an excuse. Moisture doesn't really ever bode well for hunting equipment. When moisture (either rain or snow) gets into a firearms barrel, nothing good takes place. A couple rain drops down there can change the point of impact drastically and a barrel jammed with snow after a...