I am having a problem with a No 4 Mk I. It is a Savage, with a matching bolt and a 1952 FTR. The problem is that when fired, the bolt head jumps out of the track. I have to hand raise it to the vertical release orientation to get the bolt open. The ammunition I used was PPU FMJ BT 174 grain.

I did check the headspace and it does not close on an 0.071 gauge. I followed the procedure in T.J. Evans's Guide to the Lee Enfield Rifleicon to remove and replace the extractor to perform the headspace check. I didn't dismantle the bolt further.

It seems to open and close smoothly with no round in the chamber.

The only other observation I have is that the bolt head does not tighten flush with the bolt body when the bolt and bolt head are aligned, so there is a little play between the bold head and bolt body. (Does that make sense?)

Could this problem be caused by my re-assembly or do I have a bigger problem with this rifle?

Thanks.
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