replacing the bolt assembly would also need to replace the reciever. at that point you might as well look for a nice used pre64 or one of the classic versions which are the same design as the pre64.
unrealiability in feeding is why you dont see push feed in african dangerous game rifles
"Gun control: The theory that a woman found dead in an alley, raped and strangled with her panty hose, is somehow morally superior to a woman explaining to police how her attacker got that fatal bullet wound." — L. Neil Smith