Just looked at the American kerfuffle over the 700s dodgy trigger from some years ago. OMG Remington knew all about the potential risk decades ago! As I have just bought a brand new 30.06, I was surfing the web as you do, and this chap had some advice on serial numbers and barrel manufacturing dates and it seems that a barrel and action may be in the factory for years apart before they come together as one with different date letters.
Well, the chap also mentioned Remingtons serial no checker and the trigger stuff. YES, you've guessed it, mine is suspect and I have'nt even fired a shot. (possible blessing ! )
SMK apparently are the UK Remington authorised dealers so my enquirey on this situation is on its way to them as I write.
Will keep you posted.