Metal Tech may be the cheapest... But I had probably close to 40 complaints of people having ridiculous jamming issues. I can't blame ALL of those on metal tech BB's due to the sandy environment... But after that experience.. Metal Tech BB's are a no-go for me.
It's too bad that the people @ Metal Tech have such great customer service and are very polite and easy to talk to
they saved the day for me... But their product isn't very good