We talked to Scottish Game Fair exhibitor John Tamlin of Lonsdale Auctioneers and asked him all about buying and selling a gun at auction. Here's what he said:   T. STENSBY & CO.A 28-BORE BOXLOCK NON-EJECTOR, Ser No. 1479 £2250 How has online bidding changed auctions? It's been an incredible change. The rapid establishment of auction platforms online was the biggest enabler,  with auction houses signing up to access their clients and the ability to target clients by specific interest. Can you give five tips for buying a gun at auction Come and have a good mooch over the ...