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Alpha Munitions 6mm GT Brass


Alpha 6mm GT is prepackaged in 100rd hard cases. 

With New O.C.D Technology: 

Alpha Munitions' new Optimized Cartridge Design boasts superior primer pocket longevity and improved pressure containment. Check out this Youtube Video to learn more! 

What is the 6mm GT: 

The 6mm GT was birthed from a collaboration between George Gardner (owner GA Precision) and Tom Jacobs (owner Vapor Trail Bullets). Designed with competition shooting in mind—Light recoil, excellent velocity, exceptional consistency both downrange and through the chronograph. 

Why the 6mm GT:

  • Easy: No magazine inserts or modifications required to feed from AICS magazines.
  • Feeds great: Using a 35 degree shoulder angle, the cartridge wont hang in the chamber on the shoulder.
  • Efficient Case Design: Optimized case nearing 100% capacity with 34-35.5 grains of Varget.
  • Velocity:  3020-3080 fps with 103-105 grain bullets and approx 3000 fps with 115's.


  • Brass: Alpha Munitions and Hornady Mfg. both available through GA Precision
  • Powder: Hodgdon Varget is recommended.
  • Reamers/HS gauges: available through GA Precision by JGS and PTG
  • Dies: Hornady, RCBS, Redding all available at GA Precision, Alpha Munitions
  • Facebook support forum:


  • Small primer pocket
  • .080" flash hole (addresses cold weather operation). 
  • Alpha Munitions new OCD case design for improved pressure retention and primer pocket life

Want a shirt to show your 6mm GT pride - click the link: