I have been using an 1858 as a truck gun for the last year and a half. As long as I shoot it once a week and clean it it's been pretty reliable. Somehow I let 3 weeks slip by without shooting the 1858. It's been hot , muggy, rainy and humid here in the north east. Finally shot her last night and I had all six go bang but two shots were slow ignition. Usually when I get slow ignition I pull low and left. Naturally my first shot was one of the slow ones . only about a foot low and six inches left at 20 yards so still a hit on a silhouette target but not the way I prefer to get them.. My threat level is green so not a big deal but a good reminder to keep fresh loads in these pistols.