Following on from here for people who find this at a later date...
I got my FAC back and I've got the .338! For Deer and any other lawful quarry on land I have authority to shoot. Nice!
So, do I go for a new Tikka T3 Hunter for £550 or get my RFD to order me a Titan 6? Or do I get the Ruger M77 Hawkeye (which is a lot heavier)? I don't know, but I'm still leaning in the direction of the Hawkeye! I get the feeling a light rifle in this calibre may not be so pleasant!