I am with the camp of when in doubt just purchase some new brass. Yes it may be spendy. It should give you a good case life, and plenty of firings.
Now that said. Read a reloading manual on how to inspect fired brass. The source of the brass before you picked it up is an unknown variable. You do not know if they loaded it from new factory reject brass, or if it was reloaded from previoulsly fired brass.
The variables are if the there is incipient head seperation, or thin spots in the brass, breaden primers, or splits in the case neck. Also run it past a magnet. A lot of times the blanks are made with copper washed steel cases. If it sticks to a magnet trash it.
No matter how many times you do it and nothing happens it only takes something going wrong one time to kill you.