Hornady Superformance 257 Roberts +P 117 Grain SST Rifle Ammo (20)


Hornady Superformance 257 Roberts +P 117 Grain SST Rifle Ammo (20)

This Superformance® ammo uses ultra progressive propellants that take its SST® bullet to a new level of performance. It's an elegant approach that utilizes specialized powders, at normal charge weights, to impart all useable energy to the bullet reducing the rocket nozzle effect at the muzzle while still increasing velocity.

Increases in rifle performance, no increase in barrel wear and felt recoil, along with superior temperature stability are all realized with Superformance ammunition!
  • Box of 20
  • Cutting edge technological advancement in ammunition design
  • Ultra progressive propellant
  • Increases rifle performance with no increase in barrel wear and felt recoil
  • Superior temperature stability
  • Muzzle velocity: 2945 fps
  • Muzzle energy: 2253 ft. lbs.
  • H.I.T.S. # (100 Yard Value): 872
  • Ballistic coefficient (G1): .390
  • Sectional density: .253
  • Streamlined for ultra-flat trajectories
  • Polymer tip for rapid expansion and maximum energy transfer
  • Match-grade jacket delivers surgical accuracy
  • Heavy construction with InterLock® feature delivers deep penetration every time
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"Ten bullets through one hole" is the philosophy that brought Hornady® Manufacturing from a two-man operation in 1949, to a world-leading innovator of bullet, ammunition, reloading tool and accessory design and manufacture today.

Change is their constant; change is their daily challenge. They ensure the products they make are the ones their customers need right now and accurately predict what they'll want in the future. They recognize trends and respect when to leave well enough alone. The Hornady work force includes an ample number of hunters and competitive shooters, as well as veterans and former law enforcement officers. At Hornady Manufacturing, ammunition is more than their livelihood. It's a major part of their daily life.

Hornady - Accurate. Deadly. Dependable.®
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Product Details

Hornady Superformance 257 Roberts +P 117 Grain SST Rifle Ammo (20)

SKU #:
UPC #:
257 Roberts +P
Bullet style:
Bullet weight:
117 grains
Application / Use:
Muzzle energy:
2253 ft. lbs.
Muzzle velocity:
2945 fps
257 Roberts +P SST 117 grains $39.99