Lyman Double Cavity Rifle Cast Bullet Mould, producing bullet #266673, a .265" nominal diameter 150 grain, Soft Point, Gas Check bullet. Heavy weight bullet design for the 6.5 x 55 Swedish Mauser. Excellent black powder cartridge rifle (BPCR) silhouette competition bullet. Lyman Top Punch #641, Item#LYM2786753. Approximate Bullet Dimensions: Bullet Length-1.18", Bullet Nose Length-0.79".