troy------when ya fire a round the brass takes on the diam. of the chamber---called fire forming-----yes ya can use em but most likely gonna have to run em thru the full length resize & de-prime die as size of chamber can be different from other chamber------If ya dies are not carbide ya'll have to use case lube on brass to resize em!!--Normal precauctions apply how many times brass has been reloaded & what condition it's in!!