I have never seen a bedded factory rifle disassembled after bedding, they are done one after the other in quick fashion.
You would be the first person to see the end result. Yes, they do clean out the screw holes, but not by disassembling the rifle as far as I know.
Cheers.
P. S.
I just bedded a CZ550 safari classic 416 Rigby for myself...I haven't used enough compound behind the lug, trying to be minimalist hasn't worked. Looks like the Drexel will get a workout next weekend.
The second recoil lug 'F' block is nicely bedded though, so at least half the job looks good.
Cheers.