Weatherby Select Plus 30-378 WBY Mag 195 Gr Hammer Custom delivers elite long-range big game performance from the world's fastest production .30-caliber cartridge. Loaded with a 195 grain Hammer Hunter(R) solid copper bullet this factory load launches at an impressive 3 225 fps from a 26" test barrel generating approximately 4 503 ft-lbs of muzzle energy - making it one of the most powerful commercially available .30-caliber loads on the market. Whether you're pursuing elk moose brown bear or large African plains game this ammunition is engineered to perform at distances where most cartridges simply fall short.Weatherby Select Plus 30-378 WBY Mag 195 Gr Hammer Custom20 rounds per box; 10 boxes per case (200 rounds per case)Bullet: 195 Gr Hammer Hunter(R) - CNC-turned 100% solid copper lead-freeMuzzle Velocity: 3 225 fps (26" test barrel)Muzzle Energy: ~4 503 ft-lbsPrecision 1.5mm hollow point for consistent reliable expansionWeight retention: typically 60%-70% on impactCasing: Brass | Primer: Large Rifle MagnumCountry of Origin: USAMPN: M303195HCB | UPC: 747115449422The Hammer Hunter(R) bullet is CNC-turned from solid copper bar stock with each projectile individually weighed and micrometer-measured for exceptional consistency. Its design sheds controlled petals on impact driving deep penetration while minimizing meat damage - a critical advantage on large tough-bodied game. The fully lead-free construction reduces barrel fouling and heat compared to traditional jacketed lead-core bullets and the high ballistic coefficient profile maintains lethal downrange energy well past 500 yards. Weatherby partnered with Hammer Bullets(R) to bring this factory-loaded combination to hunters demanding the very best in long-range terminal performance. Best suited for experienced shooters in an appropriate magnum rifle platform such as the Weatherby Mark V.