Here's my '17 along with it's old army mate, a Colt '17. This Model 1917 is the second I've owned. The first one was ugly but mechanically sound. I spent some years toting it afield in a belt holster and shooting the hooey out of it. The revolver was very satisfying to hand load and shoot and I learned a lot about .45 ACP/Auto Rim behavior in a revolver. Traded into this one but feel it's too nice to holster and actually use. It shoots well too but only receives careful range exercise. I wish I'd kept the old one for a usin' gun.
The Colt Model 1917 is the most used Colt in my collection. I've shot it for many years too. The Colt New Service is my favorite Colt revolver model. I love shooting them despite the fact that they are so large that I have difficulty using them double action, even though I have large hands and long fingers. I could still do alright with one of them at "trench clearing" distances. The Colt New Service is a most stately and elegant revolver to shoot. I do prefer the Smith & Wesson N-Frame guns though.
Both these revolvers like a 250-255 grain lead bullet with a smidgen over 6 grains of Unique really well. Either Model 1917 would still do for home defense.
Carrying the New Service tangent forward a bit, here's the Model 1917 (bottom) with it's older brother, the Model 1909 in .45 Colt (top).