Australian-made and competition-proven, the ADI World Class 223REM 69GR Sierra MatchKing Centrefire Ammo represents the pinnacle of domestic precision ammunition manufacturing. Built on over 130 years of ADI propellant and ammunition expertise, this load pairs a 69gr Sierra MatchKing Hollow Point Boat Tail (HPBT) projectile with ADI's own temperature-independent propellant technology to deliver consistent chamber pressure and velocity regardless of atmospheric conditions. Loaded to a corrected maximum average pressure of 62,000 PSI with a muzzle velocity of 2,760 fps, this is a round engineered specifically for service rifle competition in M16A2 and AR15-A2 platforms, and it shows in the results. This is the ammunition that has set national records in Australian service rifle competition, delivering sub-MOA accuracy at the 200 to 300 yard distances where these matches are decided.

ADI World Class 223REM 69GR Sierra Match King Centrefire Ammo - 20 Rounds Key Features

• Projectile: 69gr Sierra MatchKing HPBT with a G1 ballistic coefficient of 0.301 and a narrow meplat for a sleek, low-drag profile optimised for long-range accuracy.
• Boat Tail Design: The tapered heel reduces base drag at the transonic/supersonic boundary, helping the projectile maintain stability and a predictable flight path out to 300 yards.
• Muzzle Velocity: 2,760 fps from the muzzle, providing a flat trajectory and consistent point of impact at competition distances.
• ADI Temperature Independence Technology: The propellant formulation is engineered to hold consistent chamber pressure and velocity across varying temperatures, so your point of impact does not shift between a cold morning and a warm afternoon range session.
• Concentricity Standard: Loaded to a concentricity tolerance of plus or minus 0.0003 inches, ensuring uniform bullet seating and consistent pressure curves for shot-to-shot repeatability.
• Annealed Brass Cases: Annealing relieves stress in the case neck and shoulder, producing more uniform neck tension and extending the life of the brass for reloaders.
• Non-Corrosive Boxer Primers: Boxer-primed brass is fully reloadable and compatible with standard Australian reloading equipment, making these cases well worth keeping.
• Platform Compatibility: Designed and load-tested for M16A2 and AR15-A2 service rifle platforms. Not recommended for hunting applications.
• Pack Size: Available in 20-round boxes, with cases of 200 rounds (10 boxes) for competitors who train and shoot in volume.

For competitive shooters running service rifle events, ADI World Class ammunition removes the variable of inconsistent factory ammunition from the equation entirely. When you need a round that performs to the same standard every time you pull the trigger, this is the Australian-made answer.