I have a Winchester color case hardened 1873 in 357 magnum caliber. I bought it on gun broker a few years ago and it still had tape label on the tube magazine under the barrel so I believe it was unfired About a year ago I broke down and couldn’t stand it anymore so I probably fired 20 to maybe 30 rounds at most. It cycles all 357 and 38 special rounds smooth and easy. I had some pistol specific rounds that wood hang but never fired them because when it jammed I took them out and never tried to fire them. Got my eye on the new 3” blued python and feel like I need to sell some before buying any more.