Hi Jim,
Thank you very much for the offer, but I may have got it sorted now, as a friend of mine has told me that he's started making springs and he might have the correct mandrel for the size of my spring.
I still may take you up on your kind offer if he can't do it, if you don't mind.
Thanks again
Baz
Toys : .308 Rem 700 SPS Tac, 7.5x55 Schmidt Rubin K31, 7.62x54R Mosin Nagant M44, .45/70 Browning Mod 1885 HWTR, 8x60R Portuguese Kropatscheck, .58cal PH 1861 Enfield Carbine, .22LR-CZ452 Silhouette Tac, .22LR Smith & Wesson-M&P 15-22-M4 Carbine