It is best to begin with 50 or more once-fired cases that have been fired in your gun. Inspect them for any abnormalities, cracks, or other defects that would make them unacceptable for reloading.
ExpertReloader.com is designed to pick up where the MEC Reloader owner's manual leaves off. The purpose of this site and is to show people how to reload a box of 25 perfect shotshells in 2 minutes.