I sent a link to this thread to a buddy, as he and I have been talking about building different types of shooting rests. He had an idea use these style jacks on the bottom of a shooting bench between the table top and the legs, so you could adjust the table to be level on uneven ground. Screwing three of these to the bottom of a bench seems like it would make it a bit heavy to me, but might be worth trying. Thanks for the idea on the rest.