Pryor was a gunsmith in or around Birmingham, AL. He has been dead for several years. I have seen several of his guns that appeared to be 1950-1970's vintage. Most were heavy barreled target/varmint rifles. I believe he had a good reputation with the benchrest shooters as an accuracy gunsmith.
I have seen two rifles that I believe that he stocked(a heavy barreled varmint rifle and a .270 based on a Remington 722 action), and while generally well-executed, were more utilitarian that what you are describing.
He ran around with T.K. "Tackhole" Lee and helped him develop the .224 Lee Tomack cartridge, for which few rifles were chambered.
