If you are familiar with the new production stainless Pythons, then about the only difference is the color. The little QR code laser etched on the right side forward of the trigger guard is harder to pick out. I was worried that it would show up worse, but they kept it black and it blends in pretty well. In the same cabinet they had a '70s 4" to compare it to. About the only similarities are the name and the caliber. The new blue looks good, but it just didn't compare to the 50 year old Royal Blue. I'm sure it will shoot as well as it's stainless sibling, but I wouldn't mind hearing from someone who has shot one.