[email]https://mail.google.com/mail/u/0/#inbox/QgrcJHrtrSdKxqbGzVQnwzgbfpCLLfsTgpG[/email]

Sorry for all my fumbling around trying to attach the results of pressure testing of 20 gauge loads, some of which gave low pressures in the range you indicated. Hope this link to email containing the two PDF files is accessible.