Capt. Laidler assistance please

[CINDERS]

I have a BSA Shirley No.4 T and the King Screw (yep I'm an Aussie) that was with the rifle even done up tight as the action still rocked when the barrel was lifted. So change of screw = still get minor just felt receiver movement but may as well be 6 feet as MOA @100m is @ 10".
Checked the top hand guard not touching though it does not appear to have the field mod punch marks on the band as per your fitting up on stocks in archives.
Question I know they are supposed to have @5-7lbs up lift so could the trigger guard collar be to long!
The stock though seasoned can this shrink causing the take up from the King screw to be bottoming out and not pulling the action down as I fail to see H & H goofing this rifle up in 1944.
I do not know its history save that it was a display item for 50 years it gauges at .302 and the bore is mirror (bore scoped) 5 land it is no use me using it again until I can get the bedding sorted.
As the scope may be ok even if it does hav 2 crows on a wire!
Next is the back mounting screw on the scope bracket I have 2 new washes as the others are looking a tad squished, I can get the front one out but the back one binds up after a couple of turns (it is off the rifle of course).
I am hesitant to give it curry as they do as you advised snap and that would make me just sook real bad and cost a fair bit to get remedied.
I look forward to yours or the forums assistance in these matters.

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