Work Your Way Up, Watch For Pressure Signs – Why Watch For Pressure Signs If The Charge Is Less Than Max?

[Robert]

Todays noob question is about the regular advice given to noobs like me: “Work your way up and watch for pressure signs.” I would like to understand the last part: “…watch for pressure signs” when loading less than max charges. Do people say that out of an abundance of caution? Or, is it possible that a middle-of-the-range load will be okay in one gun but cause problems in another one of the same type? (Think two revolvers both firing .44 magnum loaded with 240gr JSP over 23.5gr WIN296). Is it possible for one gun – Ruger Super Redhawk – to have problems with the load and show pressure signs, while another one – Ruger Super Blackhawk – is okay?
Thanks for your help.

Discussion