EOSM - Fair point you make
Having never actually flown into Lyneham as other than SLF I wouldn't have been able to tell you the runway headings off the top off my head. So to check I had a quick shufti on Googlemaps aerial view and in front of the piano keys the runway headings are marked 07/25 (if my eyes don't deceive me). On further investigation (airport-data.com) it seems they should be 06/24 (correct?). So I wonder if the runway painter had a large lump of iron in his pocket when he consulted his compass prior to applying brush to tarmac.