The Federal Premium Terminal Ascent .270 Winchester Short Magnum (WSM) 136-grain Bonded Polymer-Tipped Boat-Tail 20-round box is an elite centerfire rifle cartridge engineered specifically for long-range big game hunting, elk, mule deer, whitetail, and bighorn sheep. A primary friction point in long-range hunting loads is velocity decay, causing standard projectiles to fail to expand at extended distances, or conversely, fragmenting upon high-velocity impact at close range. Federal completely resolves this dual challenge by pairing a Slipstream polymer tip with a molecularly bonded core and solid copper shank, ensuring reliable, low-velocity expansion at long range while preserving structural mass for deep, bone-crushing penetration at close range.
The technical advantage focuses on maximum aerodynamic efficiency paired with velocity-independent expansion mechanics. Launching its 136-grain bonded projectile at a blistering muzzle velocity of 3,240 FPS, this short-action magnum load produces exceptionally flat trajectories and high downrange kinetic energy delivery. Mechanically, the patent-pending Slipstream polymer tip features a hollow-core design that hollows out upon impact to initiate expansion even at reduced downrange velocities. Featuring an impressive 0.493 G1 Ballistic Coefficient (BC), a drag-reducing boat-tail profile, and specialized AccuChannel groove geometry, the bullet minimizes air resistance and barrel friction to optimize rotational stability and long-range precision.
Slinging its 136-grain bonded boat-tail bullet at 3,240 FPS, this specialized .270 WSM cartridge is optimized for flawless mechanical operation across modern short-action bolt-action hunting rifles. Assembled in premium nickel-plated reloadable virgin brass cases fitted with Gold Medal match-grade primers and temperature-stable propellants, it offers superior corrosion resistance against backcountry moisture and ice. The slick nickel plating lowers chamber friction for effortless loading and positive bolt extraction in freezing, high-altitude hunting conditions.
Key Benefits
- Molecularly Bonded Core & Solid Copper Shank: Eliminates jacket-core separation to preserve weight for deep vital penetration through bone.
- Hollow-Core Slipstream Polymer Tip: Initiates rapid, reliable expansion at low downrange impact velocities while resisting thermal deformation.
- AccuChannel Groove Geometry (0.493 G1 BC): Reduces aerodynamic drag and barrel friction to maximize velocity retention and long-range accuracy.
- Corrosion-Resistant Nickel-Plated Brass: Lowers friction for slick chambering and positive extraction in extreme weather environments.
Technical Specification
- Ballistics: .270 Winchester Short Magnum (.270 WSM) | 3,240 FPS Muzzle Velocity | 0.493 G1 Ballistic Coefficient | Extended-Range Magnum Profile
- Projectile: 136 Grain | Terminal Ascent Bonded Core | Slipstream Hollow-Core Polymer Tip | Boat-Tail (BT) | AccuChannel Grooved Shank
- Case/Primer: Premium Nickel-Plated Reloadable Virgin Brass Case | Gold Medal Non-Corrosive Primer | Temperature-Stable Propellant
- Logistics: 20 Rounds Per Box | Federal Premium Terminal Ascent Series
- Dimensions: .270 WSM Geometry | Short-Action Bolt-Action Rifle Configuration | SKU: P270WSMTA1
- Application: Long-Range Big Game Hunting, Elk, Mule Deer, Whitetail, Bighorn Sheep, and Backcountry Hunting
- Standards: SAAMI Compliant | Federal Premium Match Quality Benchmarks
When shot placement and terminal consistency matter across unpredictable distances, this cartridge provides a mechanically reliable solution. Secure it through SMKW to ensure verified inventory and consistent sourcing from a proven manufacturer.
