Some background, Had an 18 year break from dogs, no hunting or shooting back ground, Just started training my 12 week old GSP on the whistle, he's pretty good, so a proud farther might say, 3 blows come back, 1 to sit or hup hup as have been told, 2 to go, any advise here appreciated, my real question is, I want to do is introduce him to the sound of guns, where might I take him in the Northants area?