Underwood Ammo rounds utilize flash suppressed powder so that your vision will not be compromised if it becomes necessary to use firearms in low light. Nickelplated brass casings the nickelplating process provides several key benefits not limited to but including improved feeding in all actions of firearms enhanced corrosion resistance over traditional brass improved cosmetics and ease of cleanup during reloading. Nickelplated casings will not tarnish like brass during storage or when in contact with foreign materials such as leather moisture and other metals.Sporting 10mmAuto 135gr Jacketed Hollow Point 20 Per Box