Many good musketeer's bandeliers of Dutch type are preserved in the Emden armory, Northwest Germany. I took the following photos when attending that armory in 1987 and 1992.
As stated before, all these Emden bandeliers have a sturdy, pleated lether pouch with draw strings, an oval piece of felt for resting the heavy musket, and either a brass ring or a leather loop for a portion of matchcord.
In my collection there are three bandeliers from the Emden Armory, ca. 1600-20. One of them has attached a powder measure that is much heavier than the others made of wood; it consists of lead and has a removable leaden cap, both covered with black leather. I cannot think of any practical reason except a better prevention against moisture, but I know that at least the caps of such measures were sometimes made of lead in England, and I attached a few samples. But even then: a complete bandelier consisting of leaden chargers would have been simply too heavy, so what?
Please see also
http://www.vikingsword.com/vb/showthread.php?t=18290