Regarding the clips. I use the Rimz poly clips all are of 6 round capacity. In the instructions you get with the clips you have to file down what looks like bumps on the inside of them. Takes about 5 minutes with a sharp file. Then test fit as to make sure they fit properly. No de mooner is required. kinda neat to see the fully loaded clip plop into the cylinder of my 1937 Brazilian contract S&W revolver.Basically the same as your model of 1917 revolver. Frank