On the 1858 - the cylinder pin - I lube it w/ Bore Butter before shooting. I get several cylinders down range without any problems, when I feel it begin to bind a little I have gotten off with a small squirt of Balliston down the cylinder pin without removing the cylinder itself, and I am back on line. The number of shots fired in a day - never as many as I would like - usually 40 - 60 rounds. Chain fire, always worry about it but, it has never happened to me anyway. I approach chain fire incidents like we all do about driving and car accidents, you always worry about them but you take precautions to prevent the incident or lessen it's impact when it does happen. One alway do preaution, ensure that the caps are the correct size for the nipples on the particular revolver. I suspect that most chain fire incidents occur when a cap is knocked off a live chamber during firing and goes unnoticed until it goes off when the next round is fired. I have even used digital calipers to check the size of nipples and fit the correct caps (Typically these revolvers take #11'3, but you will find that not all #11's are the same size). Also in the area of caution, though I do not care for Pyrodex all that much, I have used it in the cap and ball revolvers simply because it is more stable and I believe at least fractionally less like to chain fire on you.