I do not post on here much, but visit the site everyday. With Aluminum actions, one must remember that they are not fully Aluminum but have steel inserts for the threads and locking lugs. Also when looking at them I would look for the F-Class, Big Bore, or the Kodiak since all have a built in recoil lug and does not rely on a sandwich type of bedding to handle the recoil. If you do not care about repeaters, then the options open up to all of Kelbly's Aluminum actions and also Stiller's Viper or Rattler. I have had a Panda, a Viper, and a Polar and I have never had any problems out of them.