Brad, that's exactly what more than one ballistic lab-tech has told me. In fact, during my last visit to a pressure lab, the tech said, "A chronograph is the home handloader's best friend!"
Rick Bin once posted that he stopped at book max. charge or max. listed velocity which ever came first.
I thought that was well said, and I bought a chronograph shortly after that.
The thing is, that chronograph really opened my eyes to the "magical" 7Rem Mag. I came to realize I had been shooting a FAT 280 all along.
