I thoroughly stripped the bolt and cleaned and lubed it.
So far I have only single fed it, up till now, have never loaded five in the mag well yet.
But I will try and clean again the area in the recess and see if that makes a difference.
This rifle was extremely dirty and crusty when I got it. I bought it from SOG a few months back when they were selling them. Very happy with what I got, a really nice piece, but I think it may be a War survivor and has not been cleaned since then. until I got it.
Thanks again Bob