A few unrelated things -
Riflechair has a gun that he took out of the grease and shoots, he might want to comment. He did make a video comparing No4's that showed that rifle in action.
With regard to C Broad arrow 1917's, there were some issued to PCMR volunteers along side Winchesters during WW2, they are stamped and have the red stripe on the stock to indicate 30-06
"UF" Enfields are the last new Lee-Enfield rifles made in the UK, and are generally beautifully made, the OP's gun clearly shows that.
Finally - why is it every time someone mentions a new, unissued Enfield, someone jumps out and suggests it's used and someone spent time and money to repack it with grease? News flash guys - there are new, unissued and unfired Enfields out there - because they made frigging millions of them and they didn't all get used. I've had a couple. Are they common, not really, but they aren't hens teeth. Sorry, but that's a pet peeve. When someone has a gun with a shiny 0 or 1 bolt head face, no marks on the feed ramps, no scars on the wood work or metal and grease packed into the action, trigger group and inside the barrel channel. If the only mark on the gun is a very fine silver mark on the mag follower, the odds are that the gun is actually new (you can't open the action without leaving a trail on the follower). I've certainly seen more like that which were new than ones that have been repacked - in fact, I've never seen a repack that looked anything like a new gun. Suncorite is an absolute pain to remove, hard to duplicate, nearly impossible to get and hazardous to use, it isn't like blueing or Parkerizing and finishes applied over top of it stick out like a sore thumb. - Rant Off /