rifle rest

[Hog head]

I don't know what happened there so i'ii try again.I saw a rest somewhere on this site the other day.It looked heavy duty,mabey custom,it had clamps on it I assume for control and recoil reduction,definatly not your run of the mill lead sled.I did a search here and on google and can't find what i'm looking for.I want a rest to take out human errer for tests.I can build anything i can get a picture of or a print.I have access to a machine shop,welding and cutting equipment and plenty of time.I'm just stuck on design.I shoot a remington 700 in .223 Does anybody have a good picture,plans,book,or web site that has what I'm looking for.Thanks