Hornady: Superformance .300 Winchester Magnum, 180gr SST, 20/Box

Current Stock:

Increase your rifle's performance up to 200 fps without extra chamber pressure, recoil, muzzle blast, temperature sensitivity, fouling, or loss of accuracy.

Superformance® uses progressive propellants that take your favorite V-MAX,® NTX,® SST,® CX,™ and InterLock,® bullets to levels of performance that are simply unattainable with conventional ammunition.

It IS rocket science!®


  • Proven Hornady® Bullets: Superformance® ammunition is loaded with Hornady® V-MAX,® NTX,® SST,® CX,™ 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.


  • Fast: 100 to 200 fps faster than conventional ammunition.
  • Accurate: Uncompromising accuracy without increased felt recoil.
  • Consistent: Unfailing performance across a broad range of temperatures.
  • 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.


  • G1 BC: .271
  • Muzzle Velocity: 3130 fps (24" barrel)
  • Muzzle Energy: 3917 ft lb
  • Bullet: 180gr SST®
  • Quantity: 20 Rounds



Ammunition Restrictions by State

No Shipping to HI or AK 

This item is restricted in certain states. Please make sure you are familiar will all laws in your area. Ammunition Restrictions.





.300 Win. Magnum