I have a 458 Lott on the way soon and plan on having it setup with QD mounts and irons on it as well. What's the most bombproof, fixed power scope? Snooping around the web, it looks like the older Leupold M8 3 power and 2.5 were known for their heavy recoil handling abilities. Is the newer Leupold FX2 ultralight 2.5 power as durable? Is there a better option out there?