Quick view Compare This product is sold out. Call us to personally order more. Magnum Research Magnum Research 50AE, 300gr, JHP, 20 rd box MSRP: Was: Now: $55.08 Magnum Research has long been known for hard hitting firearms. Magnum Research 50 AE ammunition is the perfect choice to feed these heavy hitters. This ammunition is new production, non-corrosive, in boxer primed, reloadable brass cases. This product is sold out. Call us to personally order more.