Do not rush - reload carefully and accurately. Avoid distractions while reloading. Never drink alcoholic beverages while reloading. Always check powder and shot charges with a reliable scale. Store primers in their original factory trays in a cool, dry area.
Primers are flammable.
Powder is flammable. Wear eye protection while reloading. Keep your reloading area clean and neat. Reloading involves hazardous materials, including lead. Wash hands before and after reloading.