HORNADY Superformance 300 Win. Mag. 150 Grain GMX Ammo, 20 Round Box (82012)

HORNADY Superformance 300 Win. Mag. 150 Grain GMX Ammo, 20 Round Box (82012)


HORN-82012

We will price match any currently priced, in stock item. In some rare instances we may not be able to match a price but will do all that we can to give you the best deal possible. (We cannot match the price if it is under our cost) Please call store at 1.800.486.7497 to check availability for immediate pickup. Please review the Terms and Conditions HERE.

Type: Rifle Ammo


  • Superformance is a cutting edge technological advancement in ammunition design that transcends convention
  • Superformance ammunition is 100 to 200 fps FASTER than any conventional ammunition on the market today
  • Superformance uses ultra progressive propellants that take your favorite SST or GMX bullets to levels of performance that are simply unattainable with conventional propellants
  • Superformance provides increased performance, and is safe to use in ALL firearms, including semi-autos, lever gun and pump actions
  • Increases in rifle performance, no increases in barrel wear and felt recoil, along with superior temperature stability are all realized with Superformance ammunition
  • Superformance ammunition is safely within SAAMI pressure guidelines. Gas operated firearms are perfectly safe to use with Superformance ammunition
  Caliber     300 Winchester Magnum  
  Bullet Weight     150 Grains  
  Bullet Style     GMX  
  Muzzle Velocity     3400 fps  
  Muzzle Energy     3850 ft. lbs.  
  H.I.T.S. # (100 Yard Value)     1153  
  Ballistic Coefficient (G1)     .415  
  Sectional Density     .226  
  Test Barrel Length, in     24"  
  Rounds Per Box     20