The footprint for the Panda and Viper are essentially exactly the same, to include the screw hole pattern. The Panda F-Class footprint is exactly the same as the Panda, and Viper, with the addition of the integral recoil lug. The draft cut mentioned above, would have to be performed by your gunsmith, or order it from Kelbly's with an optional draft cut. In standard configuration, as it comes out of the CNC machine, the cut is a square cut. Al Warner cut the draft on my Panda F-Class action. The Marsh Saguaro action has the same footprint as the Panda action, but roughly 1-1/16" shorter in length. With a stock in-letted for the Panda F-Class action, the Panda, Marsh and Viper will drop in. You can fill the cut-out for the recoil lug when bedding, or, place a quarter inch thick removable shim into the recoil lug cut out for it to be used for the F-Class action if you choose to go that route down the road. The Marsh, due to the shorter length, would need the bedding extended in front of the action. A stock in-letted for the Panda or Viper, would need a cut for the recoil lug on the F-Class action to drop into. None of which is a big deal.Sling said:I was just wondering if there was another action that had same footprint as the Panda.