Well I gave it a try at what should have been near enough bore sighted, and it printed 7" right @ 25mts with no windage left on the scope, Having read about action flex and the left hand twist I re centred the scope with the mirror trick, The next shot 3/8" left of centre, 1.5 moa, gave the scope 6 clicks and fired 3 more shots they cloverlefted on centre about 1.5" high. So what have I learned,, you cant bore sight a No4 and the 0.060 offset is normal and always trust Alf Parker he knew a lot more than me.
There you have it my collection of bits is shooting well, its needs tickling at 300 just to finish it off but my worries are over, no need to machine or shim or throw the scope away. However I am going to make a small modification, a forehead tattoo saying " Trust your Enfield" lol ,,, thank you all for trying to help, we got there in the end..... Tom G