I do not reload for my .480 often. The loads will be used in a Puma M92. The other day I was loading some 410gr(WFNGC) ahead of 20gr of H110. I reloaded about 20 then I realized I had forgotten to use the expander die. What potiential problems have I created? The bullets seated normally and the cases are not damaged. The rounds look like any other I have loaded. Thanks for your comments.