Jim- Thanks for getting involved with this thing. I hope it works out. I looked into it also but never got an answer back from another group. In some places there are a large number of air rifle shooters. The numbers of black powder rifle shooters is larger than the hp shooters. The bp game has the same targets but most everything else is different. Then the cowboys always have a good time. So my rifle silhouette divisions would look like this. Rimfire standard and hunter; Highpower standard and hunter; Air rifle; Black powder; Cowboy . I stick to the rimfire and high power. Also glad to see Shooting Paul wandered over this way. His site has some good basics for the game.