So, thanks, again! Due to this thread I am now aware that I can just obtain other Lyman M-type expander plugs to go with my Lyman M-type Die for other pistol calibers.
You can learn something new every day!
Cheers!
P.S. You can also obtain Lyman M-type expander plugs for use with the LEE Universal Expander Die. Search for M-type Expander and look for a links to ps-2.kev009.com.