I'm not trying to stir the pot or be offensive. But, I can't find any articles about that. Can you point me toward your source?

+1. Followed the news about the mass of people traveling on foot through Europe in 2015. Not one of the reporters made any statements about refugees carrying weapons.

Were any of the Syrian refugees carrying muzzleloaders?

The sources are no longer available.

I doubt it. When carrying guns on flight, they might be intended for defense or as barter item. Neither could be consired a particular strength of muzzle loaders.

If a BMW is all you own, then it is a survival car. Kinda like my little 2002 Hyundai Accent; not ideal but a survival car all the same.

How much are those BMW muzzleloaders?

I hate to disappoint you. BMW did not build muzzleloaders. However they built engines for the BF 109 which was a strap on carrier for breech loading full auto guns. It even came with its own fan. I had the luck to personally know some guys who successfully used it for survival in a SHTF scenario. Those did not wish they had a muzzleloader for that either.

Let's face it - MLs are obsolete. You might as well plan to hand load cartridges for your firearm. You will be particularly limited as to proppelants and primers, but you have the same constraints with muzzle loads (percussion caps or even more finicky flints).
Hand loading, especially straight wall cartridges like 38 Special or 45-70 is quite straightforward, and not all that difficult for something like a 30-06 (if fired in the same weapon).

In effect, you just do your loading beforehand....

Yes, MLs are basically obsolete. In some European countries they are just easy to obtain and require no registration. They would not be my gun of first choice.
I hand load .44 Rem Mag, .45 Colt, 6.5x55 and 7x64 Brenecke (if I were American that would probably be a 30-06). I agree that the straight wall cases are easy to load and long lasting. Necksizing and annealing makes the 7x64 brass last longer and requires almost no trimming. However I might go for full sizing when I load for a group. That will allow for interchangeable ammo.