Increase your rifle’s performance up to 200 fps without extra chamber pressure, recoil, muzzle blast, temperature sensitivity, fouling, or loss of accuracy. Hornady SST 257 Roberts +P 117
Superformance uses progressive propellants that take your favorite V-MAX, NTX, SST, GMX, and InterLock, bullets to levels of performance that are simply unattainable with conventional ammunition. Hornady SST 257 Roberts +P 117
It IS rocket science!
IT IS FAST: 100 to 200 fps faster than conventional ammunition.
IT IS ACCURATE: Uncompromising accuracy without increased felt recoil.
IT IS CONSISTENT: Unfailing performance across a broad range of temperatures.
IT IS VERSATILE: This new breed of ammunition is available in 17 Hornet to 444 Marlin, and is safe for use in all firearm types, including semi-autos, lever guns and pump actions.
Buy Hornady ammo to get bullets that are accurate, consistent, and always dependable.
WARNING: California`s Proposition 65
Specifications for Hornady Superformance .257 Roberts +P 117 Grain Super Shock Tip Centerfire Rifle Ammunition:
.257 Roberts +P
Number of Rounds:
Super Shock Tip (SST)
Cartridge Case Material:
2255 ft-lbs, 2253 ft-lbs
G1 Ballistic Coefficient:
Features of Hornady Superformance .257 Roberts +P 117 Grain Super Shock Tip Centerfire Rifle Ammunition:
Proven Hornady Bullets: Superformance ammunition is loaded with Hornady V-MAX, NTX, SST, GMX, and InterLock, bullets for the ultimate in performance, no matter what the game.
Progressive Hornady Powders: Superformance Propellants are the heart of Superformance ammunition and usher in a new era of performance.
Case And Primer: Like all Hornady® ammunition, our Superformance® rounds use the highest quality cases and primers available. Consistent components translate to consistent shooting in the field.