The optimistic ranges on all the .303 rifles have always been a source of wry amusement for me - I mentioned in another thread how hitting a man-size target at 2,000 yards with an SMLE using iron sights is basically impossible since you wouldn't even be able to see the target; so... accurately engaging a similar target at 800 yards with an iron sighted carbine? Pull the other one, it'll summon the butler.

But you've done well on your rifle and as everyone says, with the exception of the rear sight, it looks completely cromulent to me - and WWII vintage (January 1945) as well!