I've seen misfires happen with reloads, when there are several rifles using the same reloads. Some chambers are sloppy and some especially tight, probably due to the age of the chambering reamer, or tolerances in the reaming process. (I wonder whether every rifle, shotgun, or handgun is really checked with gauges and test-fired.
Like most good reloaders, I minimally resize my bottle-necked cases by firing the first couple of loadings with the dies backed-out, sizing about 2/3rds of the case neck. Then, when chambering a resized empty case (that's a bit work-hardened) seems a bit tight, turn in the die until they fit well. Sometimes cases that way, used in one, rifle don't work well in another. If possible, I keep cases separate, but if they're hunting rifles and differences are minimal, I'll size for the tightest chamber.