Regarding the comment about sporting clays above. I love that sport and think it is great to shoot. However, it seemed that most people held it to be a variation of skeet and trap to make it more 'lively' like game hunting. The targets in sporting clays are often thrown at random angles instead of the predictable set angles and patters of trap and esspecially skeet. Skeet and trap always seemed to be the 'traditional' variants (even though there are a few variations). I think this also has to do with the fact both have been in the Olympics since around 1900 for trap and around the 1940s for skeet. I think the Olympic nature of it added to its creadability.