OKieJako,
CDNN Sports, Inc is a gun distributor:
http://www.targetsportsinc.com,
As is Davidsons in Prescott, AZ.
You may find what you are looking for at either distributor but you would still need to have it sent to your local dealer (FFL). The "Gallery of Guns" link
http://www.galleryofguns.com/gunlocator/locatorstart.asp
that JohnnyBravoo77 speaks of is Davidsons' civilian website and will help you find a dealer in your area that can order a firearm and transfer it to you.
I just checked the Davidsons dealer site and they have a couple model M77's in 7MM/08 on sale until 31JAN08.
BTW, Davidsons is the largest RUGER distributor that I know of.
Side note: My oldest Son is stationed in OKC at Tinker AFB, I've been to OKC twice, How did I miss Outdoor America??? I made it to BP, Sportsmans WH and Academy. Where was Outdoor America.
Hope this helps, VTgao