If I look closer at the image... I don't really think that's a cartridge, but rather just a bag. If you look closer you can see the swab behind the ball. The angle looks rather weird.
But yeah, still could be compacted gunpowder in a paper shell or something.
I'll do that next time. I didn't think of it because I read through berserk from 1 to 314 in about two days. So I didn't even notice the episode number like you guys, who always discuss the episodes on their release. :serpico:
I know this is a pretty old topic but I decided to reanimate it anways.
It seems that the berserk world is not entirely fictional either. It's not exactly the same but retains the basic shape.