From what I have read over the years it's not just a case of the M80s will get louder.

Here's a quote from Ian on the subject.

"Sonically these two models are very similar. The M80s have a dynamic quality that the M60s do not quite attain and they do go down a bit lower."

Rick


"A fear of weapons is a sign of retarded sexual and emotional maturity." Sigmund Freud