I have seemed to be inextricably involved with the 6mm and the .270 Winchester. I have used/shot/hunted with many 6mms, from the necked up .222 Mag case to the necked down .284 cased. "My" favorite is the .240 and the 6mm Remington. I never had a 240 Gibbs ( or similar) but I am finding myself very interested in one! I'm not a LR Hunter, but you guys are!