264 Win Mag Remington 140gr Core-Lokt PSPRemington Core Lokt . 264 Winchester Magnum 140gr Pointed Soft Point at 3,030 FPS. The Core Lokts tapered copper jacket locked to a solid lead core delivers 2x expansion and consistent weight retention for deep penetration on elk, mule deer, and large game. One of the few quality factory loads still available for the . 264 Win Mag. 20 rounds per box. Caliber: . 264 Win Mag Bullet: 140gr PSP Core Lokt Velocity: 3,030 FPS 20 rounds 2x expansion,