I was wondering if anyone can tell me where I can find the tolerances for the brass for 45ACP?  All the manuals I have list the throat diameter at .473 but the base is .476.  I have an inspection gage from Dillion that brass won't fit in if it is anything over .473 but when I measure it, I am at .476 to .478.  Wondering how much tolerance I really have.  My 1911's do not seem to have a problem shooting anything under the .478, maybe more but I have not tried.