I have a ten year old Swaro Z6i on a Mcmillian G30 .338 WM. I purchased a Magnus with the L4Ai this summer from Doug, and I put it on a CZ Sonoran in 270 Win. I'm not qualified to get into the technical details on either scope, but MY gut reaction is the Swaro is still a better scope even though its a generation or two behind the Magnus.