Mike,
Am I understanding you correctly, you are loading brass .410 cases? If you are not going to shoot skeet with your G2, your best bet might be one of the Lee Classic Hand Loaders. It'd be simple and inexpensive to pound out a box of shells occasionally. Load data is readily available on the powder manufacturer's sites. Be sure to use data specifically for the cases you are reloading. Verrrrrrrrrrrrrrry important! Good shooting,
Savage