I got a real kick out of some of the replies to this thread. I wouldn't carry any muzzle loader just as a survival tool. :wink:
In a true survival situation out in the wilds, you WILL have to make do with what you have on your person more often than not. So getting your priorities straight before hand AND being equipped for the absolute essentials when the need arises will make a difference, and could even mean your survival.
Just the opinion of someone who completed several survival courses many years ago (civilian/military), and have had to use those skills learned to varying degrees a few times over the 40 years since.
Drilled into me in those courses was the rule of three's in survival - the priorities. And the very last priority, the least of your concerns, is obtaining food. You can go at least 3 weeks without it. Shelter is your immediate priority, followed by water later. So a firearm to shoot food is among the last things you'll need to lug around, especially a heavy front loader with all the doodads needed to use it. If you feel the need of a firearm for protection of some sort - do you really want it to be a one shot front stuffer anyway? (Pepper spray works well for both 2 & 4 legged trouble, is light weight and takes up little space FWIW.)
I have multiple "survival kits" made up, and their contents have been changed many times over the years as I learned what was worthwhile and what was just wasted weight and space. A main kit stays in my truck all of the time, for use if I get stranded with the truck (and I have). And because I live on the desert it includes a large supply of water and many other niceties only because the truck carries the weight instead of me. My regular survival kit is always carried in the field on even day treks; and I have several smaller pocket kits that supplement it based on the where and the when. These "carry" kits are light weight and small enough to easily stuff into a possible or belt bag, haversack, pack basket, or pocket.
Common with all of my kits are various light weight supplies that are multipurpose and will cover just about anything that needs covered in a survival situation lasting from over-night to weeks if need be.
So if you haven't done it yet, please put a kit together, carry it AND know how to use what’s in it. IOW, practice with your kit before you actually need it. If you spend enough time in the wilds, sooner or later you very well could rely on it to save your life.
WA