Never - probably should but can't think of a 'smith in my town who I'd trust more than I trust myself. I use a guy in Melbourne for the occasional modification that involves something scary like milling the rib to install EAW scope mounts on a drilling.

Had a 318 WR I bought that had been submerged for three days in a flood. It had been dried out and checked by one of the top guys in Oz (probably, in terms of practical experience, in the world). Had a rust problem three months later - moisture in the wood and the 'smith took me through fully disassembling the action over the phone one Saturday. But, knowing the guy, he would have done the same even if he'd never seen the rifle.

mike