I've read several of the old posts on knockdown power and whether or not you want an exit wound and I am not trying to start any major debates here. I would like to test out bullet performance to simulate a shoulder shot. Does anyone halve a testing mdeium they can suggest that simulates an animals shoulderblade? I've read about wet phone books, shooting lined up milk jugs and counting the number of jugs busted. Would a sheet or two of 3/4" plywood give simular resistance to a shoulderblade? I am thinking of an elk here not one of CA 100lbs blacktails /ubbthreads/images/graemlins/wink.gif In the previous posts I remember a suggestion that 800 ft/lbs are required to break an elk's shoulder. I would like to come up with a system to test at various ranges, I'm thinking a few inches of wet paper to simulate hide and muscle then the plywood backed up by more wet paper. Anybody have any better ideas? Perhaps one milk jug then some wood and more milk jugs. Problem with the jugs is that the bullet can cant off to one side and exit the side a of a jug without telling you much. I guess I could try to find cow bones from a meat processor?