Well boys and girls, it's looks like I was wrong.... I was under the impression that lapping & de-horning was the answer to Talley woes. I just pulled a gun out of the safe, and what should I see, but a Talley had split whilst in storage.
Earthquake? I mean it happened in the safe...
Ticking time bomb
Interestingly enough, just before finding this, I had called Talley about replacing a screw that had broke off on a different mount, and also asked how far back the extended 700 base was over the standard. 3/8ths if you're interested.
I was wanting to replace the current scope on that gun with a shorter one anyway, and now decided to install an extra Seekins rail instead, and I just ordered a set of Vortex Pro rings to top it off.
Back to bullet proof, with a minor 3 oz weight penalty........