Weatherby Select Plus 270 Weatherby Magnum Rifle Ammunition Hammer Custom Lead Free Hollow Point 134 Grain 20 Rounds M270134HCB UPC 747115452668
Product Description
The Weatherby® Select Plus .270 Weatherby Magnum 134 Grain Hammer Bullets® Hammer Custom™ rifle ammunition (SKU: M270134HCB / UPC: 747115452668) pairs Weatherby's flat-shooting magnum velocity with state-of-the-art monolithic lathe-turned projectile engineering. Packaged in a 20-round factory box, this specialized load is purpose-built for North American big game—including elk, mule deer, whitetail, pronghorn antelope, and wild boar. Designed for discerning backcountry hunters demanding relentless downrange terminal energy, lead-free compliance, and benchrest-grade consistency, the Select Plus Hammer Custom load represents the pinnacle of modern monolithic hunting performance.
At the center of this premium load is the 134-grain Hammer Custom projectile, precision-machined on CNC lathes from a proprietary solid copper alloy. Unlike traditional cup-and-core bullets that risk violent fragmentation or standard monolithic expanding bullets that mushroom into a single projectile, the Hammer Custom bullet is engineered with a high-velocity shed-petal terminal mechanism. Upon soft tissue entry, the hollow point nose cavity hydraulic pressure forces 3 to 4 razor-sharp solid copper petals to shear off and radiate outward through vital organs, creating extensive multi-vector hemorrhagic trauma. Simultaneously, the remaining cylindrical copper shank—retaining approximately 65% to 70% of its initial weight—acts as a flat-front blunt penetrator that drives in a dead-straight line through dense bone and heavy hide. Exiting the muzzle at 3,300 feet per second with 3,240 foot-pounds of energy and boasting a sleek 0.425 G1 ballistic coefficient, this cartridge delivers laser-flat trajectories and authoritative energy transfer at extended distances.
Every round is manufactured in virgin Weatherby-headstamped belted brass casings featuring Roy Weatherby’s distinctive double-radius shoulder geometry. The bullet shank integrates Parabolic Drag Reduction (PDR) drive bands that significantly reduce bore friction, jacket fouling, and excessive chamber pressure spikes while enhancing barrel seal and velocity consistency. Primed with sensitive, non-corrosive Large Rifle Magnum Boxer primers and filled with temperature-stable propellant, this ammunition feeds smoothly and extracts effortlessly in Weatherby Mark V® and Vanguard® bolt actions, offering handloaders rugged case longevity for repeated reloading cycles.
*Master Ballistician Bench Notes & Range Staging Guidance:*
Chamber Compatibility & Pressure Advisory: Engineered exclusively for rifles chambered in .270 Weatherby Magnum built to SAAMI and Weatherby throat specifications. CRITICAL: Never attempt to chamber or fire .270 Weatherby Magnum cartridges in standard .270 Winchester, .270 WSM, or any other magnum chambers. This belted cartridge generates chamber pressures up to 65,000 PSI; attempting to fire it in incorrect chambers will cause catastrophic firearm destruction. In addition, Weatherby factory ammunition is specifically calculated for barrel freebore throats cut to Weatherby factory dimensions; firing this high-energy load in custom zero-freebore target barrels can cause sudden and dangerous overpressure conditions.
- Verify that the rifle barrel and action roll-markings read strictly ".270 Weatherby Magnum" before loading rounds into the internal magazine box or detachable magazine.
- Inspect each cartridge prior to loading to confirm uniform primer seating depth, pristine case wall mouth chamfers, belted rim integrity, and clean hollow point cavities free of debris.
- Stage rounds into the magazine box with the belted rim of the top cartridge positioned cleanly ahead of the lower cartridge to eliminate mechanical rim lock and ensure smooth feeding.
- Establish optical zero at 100 or 200 yards specifically with this 134-grain Hammer Custom monolithic load, as solid copper lathe-turned bullets possess unique barrel harmonics and point-of-impact (POI) profiles compared to conventional lead-core loads.
- Store ammunition in a cool, dry, climate-controlled gun room (ideally inside a gasket-sealed steel ammo can with desiccant packs) and comply with all applicable DOT Ground hazardous shipping regulations.
Key Features
- Hammer Bullets® 134gr CNC Lathe-Turned Copper Projectile: Monolithic solid copper construction featuring a terminal shed-petal design that unleashes radiating cutting petals and a heavy blunt shank for devastating penetration.
- 100% Non-Toxic & California Non-Lead Compliant: Fully certified lead-free hunting ammunition compliant with California Department of Fish and Wildlife regulations and non-lead hunting territories.
- Flat-Shooting Magnum Velocity & Energy: Pushes 3,300 fps muzzle velocity and 3,240 ft-lbs of energy with a high 0.425 G1 ballistic coefficient for exceptional downrange trajectory and wind bucking.
- Weatherby Double-Radius Belted Brass: Reloadable factory-virgin brass cases featuring Weatherby's proprietary shoulder design and PDR driving bands for smooth cycling, reduced fouling, and extended case life.
Product Specifications
- Brand: Weatherby®
- Series / Load Line: Select Plus
- MPN / SKU: M270134HCB / M270134HCB
- UPC: 747115452668
- Caliber / Gauge: .270 Weatherby Magnum (.270 Wby Mag)
- Grain Weight: 134 Grain (8.68 g)
- Bullet / Projectile Type: Hammer Bullets® Hammer Custom™ Monolithic Solid Copper Hollow Point (Lead-Free)
- Muzzle Velocity: 3,300 fps
- Muzzle Energy: 3,240 ft-lbs
- Casing Material: Belted Brass
- Primer Type: Boxer Large Rifle Magnum (Non-Corrosive)
- Reloadable: Yes
- Corrosive: No
- Quantity / Round Count: 20 Rounds per Box
- Country of Origin: United States
