The distance in my video is within about 30 meters. This is using a 3 watt Ultrafire Wf-501b Cree Infrared IR flash just for demo purposes. This is a very low power IR light. The distance you will get will depend on the power of your IR light source, ambient conditions, contrast and other...
Depends on the power of your scope, IR light source and environment. It is going to see any IR light that comes back at it. This video was shot with a $25 IR flash mounted to my scope
http://youtu.be/KSXqImP8sys...
Introduced to this site by a friend yesterday. From what I have seen so far, this is the Autotrader.com for guns! Very nice.
I sell digital scope attachments called Digital Crosshairs, digitalcrosshairs.net . It a game changer.