I've tried a couple other forum sites and I'm still looking for some help. I recently bought a Lee pro 1000, and when I started reading the instruction manual I noted that the book says to only use CCI or Rem. primers. Seems that all I have are Fed. and Win. in all sizes. I'm hesitant to set the loader up and use it because of the "Safety" warning. In gleaning the info from the various sites I've noted that some of the loaders are using the Win. primers, with no mention of problems associated with a safety issue. Now the question, is there anyone out there with knowledge/experience regarding using the Fed./Win. primers in the press. Since it's impossible to swap out the primers I'm seriously looking at returning the loader to Cabela's and getting something I can use. Any input or suggestons would be appreciated. Thanks!