Most rifles that are shot-out today, are fouled out, not shot out, or they are worn out by improper cleaning, using jointed rods, no action guides, etc. Yours, on the other hand, if indeed, has had 7 to 8 thousand rounds through it, the throat is probably well toasted.
: New barrels are not as expensive as buying a new rifle, if you do like it. Call or go to www.pac-nor.com. They can help and the gun could be more acurate than you could possibly imagine.