Quote Originally Posted by 30Three View Post
A non-matching bolt is bad news; because they were hand fitted to each rifle when manufactured. So each bolt should remain with the original rifle.
The fitting concerns the recoil lug contact; which must have contact on both lugs. If the bolt only contacts on one lug; it can cause issues and possible failure in extreme cases.
So you need to check the lug contact of your bolt to the receiver. If you are lucky and have good contact on both lugs; you can proceed to the next check which would be headspace.
I would recommend getting this checked by an Armourer who knows Lee Enfields.

At least he is getting the same advice on each forum he has asked the question.
What he has aslo said (on another forum) is that the end of the firing pin is cut off.

Being as that is one way of making a rifle DP it is even more important to have somoene like Brian Dickicon give it a thorough looking over.