there's numerous forums on the net devoted to hunting big game, some of those guys will probably know where to send you. You could try Brownell's Supply, the gunsmithing supply outfit. Their Techs are very knowledgable people. You could try the Dope Bag of the NRA'S magazine, THE AMERICAN RIFLEMAN. I'd first ask at CSP Forums, tho. There's a hunting.com, there's probably a bunch of yahoo talk groups about your subject. There's probablly a blurb about your rifle in Gun Digest Gun Values, and also in Flayderman's Book Of Gun Values.