It may be of no interest at all but my Local RFD gave me a call - he has just had the Police give him some 'old military' rifles that they have taken away from an owner.
Went to see them - they are a P14, 1918 No1 MK3 and a Savage No4 Mk1* and all are bored out to 410 and will be for sale in the near future.
Would a No4 in 410 ( on a SGC) be of any interest ?