For 2007's Metal B-Daman, they used Metal B-Dama, yes.
Crash B-Daman used the regular size B-Dama as well. I had to check that, as I know some of the barrels on the Crash B-Daman were differently sized.
EDIT: I'm sure sure whether Kai-V will allow me to post this here or not, but I'm going to do it anyway and remove it if she requests it.
As there isn't really a home for B-Daman discussion anymore since the previous forum kinda...disappeared(?), I've taken the liberty to create a new forum which can be found at
http://forum.bdamanwiki.com/
As I only started it up yesterday, it's rather limited and the theme is extremely ugly (Hooray for default!) but I'm working on that now. There's only three of us there at the moment, but if you're an avid B-Daman fan, you're free to join! Thank you