There are people in other forums that are using them,and swear by them. I would rather use a standard Mil-Dot scope. It isn't dependant on a certain load or velocity,plus it can be used as a range finder. I have used the Mil-Dot scopes on my varmit rifles for 4 years now,and there's no going back to a regular scope. It is allot more flexable,and just as or amore accurate sighting system. Here's a link that will explain it well. Ron
http://www.mildot.com/