RE: uh oh.....
you can take them back out but be real careful when you do it. wear safety glasses and DO NOT SLAM THE PRIMER REMOVER ON THE PRIMER. just use steady pressure and ease out the primer. the first time it goes bang, will scare the heck out you and it teaches you to be more attentive to putting in primers the right way. use the wd-40 if you have a surplus of primers, but in arizona they're hard to come by.