Thanks guys, appreciate the kind words!
Laughed a lot bout the thousand yard stare
Crumpler, the grip frame was stripped with Nitromors, and then sanded for maybe 1 hour with 240 wet & dry, then 20 min with 500, then 20 min with 800 then an hour with 1200. It was then polished using a car polisher and 'Autosol' - I figured it must be different stuff to Anusol, but I wasn't sure...
The breech was similar except after the Nitromors it was then sprayed with Mr Muscle - it eats away the anno but also the aluminium if you're not careful, so you have to keep checking, washing it off, then re-applying.