There is no safe way to take apart a bullet. The safest option would be to purchase a bullet puller. You only have to take the cap off by unscrewing it, put the cartridge in the collet, put the cap on again and hit the end on a surface that is stable and solid. You can purchase one of these for $14.99 at http://www.cabelas.com/tools-accessories-cabelas-bullet-puller-3.shtml. If you use pliers and vice grips, many people have said this has damaged the bullet casing and have caused accidents.