These might help....

http://www.fredtrosttv.net/plans%20&%20projects.htm

http://www.aeroaces.com/bench1.htm

http://www.ext.nodak.edu/4h/programs/shootingBench.htm

http://ambrutis.com/john/page10.html

http://www.larrywillis.com/shootingbench.html



http://users.pld.com/willj/curio/bench/master.html
http://www.rangeinfo.org/rangetalk/messages/389.html
http://www.protargets.com/products/shootingbench.htm