Single Cavity Rifle Bullet Mould 457121PH 45 Caliber 475 Grain Whitworth by LYMAN Product Overviewoffers the Lyman Single Cavity Rifle Bullet Mould 457121PH 45 Caliber 475 Grain Whitworth. This mould is designed for Navy Arms Parker-Hale Whitworth rifles with 1/20″ twists. This mould casts a nominal .456/.453″ diameter in pure lead. All Lyman moulds require double cavity mould handles and even if it is a single cavity mould. This mould does not correlate to a top punch according to Lyman. THIS ITEM DOES NOT COME WITH HANDLES. You may purchase handles here.Click to shop Mould Handles