Buy WOLF 223 55GR FMJ STEEL CASE 20RD BOX Online. Wolf Performance 223 Remington 55 grain, steel cased ammunition uses their proprietary PolyFormance coating to ensure smooth feeding and extraction and bring you the performance you need at a price you can afford. This ammunition was designed for high volume shooters looking for reliable ammunition at affordable budget. This non reloadable ammunition uses non corrosive Berdan primers with copper over lead, full metal jacket bullets. Don’t let the cost of ammunition deter you from the training you need. Use Wolf Performance ammunition to make it happen.