I have an old Spesco import '51 that I cut down to 5", removed the trigger, ground off the hammer serations, and removed the loading lever. It is a classic "Slipgun" and is a great close quarter combat pistol for a BP wheelgun. I leave it loaded for months on end. My old 2nd Mod. Dragoon was once loaded for three years. Fired all six just like I had just rammed the last one in and capped it off.
While gunsmithing for over 40 years, I had a customer bring in an original 1861 Springfield Rifled Musket. He wanted it checked out to see if it was in shooting condition. Taking the rod and running it down the bore to check for a loaded round (something I ALWAYS DO) I found it to be loaded. Aksing how long he's had the weapon, the reply was 2 years, and got it from grandpa, who had it in a closet for the last 60 years...Pulled the bullet and the BP that was in the bore was fresh and taking a portion of it in an ashtray, it lit up just like it was straight from the can.....I have no doubt that if I capped that old piece it would have sent that round downrange!
That help in your answer....
Wade