The Mighty Armory Gold Match 6.5mm BR Norma sizing and decapping die is engineered to restore fired brass back to SAAMI dimensions from case head to neck while preserving brass integrity and concentricity.
Designed for precision bolt-gun shooters and benchrest competitors, this die provides repeatable headspace control, uniform neck tension, and consistent chamber fit critical in cartridges built for accuracy first.
With a simple turn of your Mighty Armory die, shoulder bump can be tuned precisely for your individual chamber.
Why Proper Full-Length Resizing Is Essential for 6.5 BR
The 6.5mm BR Norma cartridge is known for its precision potential and tight chamber tolerances. Fired brass expands according to chamber geometry and load pressure, particularly at the shoulder and web area.
If not resized consistently, this can result in:
- Stiff bolt closure
- Inconsistent headspace readings
- Variable neck tension
- Pressure inconsistency
- Reduced brass life
A properly engineered full length sizing die restores geometry evenly across the body, shoulder, and neck maintaining dimensional stability while minimizing unnecessary brass working.
For shooters running tight custom chambers, consistent shoulder set-back is critical for repeatable performance.
Restores 6.5 BR Brass to SAAMI Specification
The Mighty Armory 6.5mm BR Norma sizing die features an extended full-length sizing area that corrects case expansion throughout the body without partial sizing or inconsistent engagement.
Resizing back to SAAMI geometry supports:
- Reliable bolt closure
- Stable case headspace
- Uniform bullet release
- Predictable pressure behavior
- Long-term case durability
Neck-only sizing cannot correct base growth or shoulder migration. For precision disciplines such as benchrest and F-Class, full length resizing ensures consistency across firing cycles.
High Grade Heat Treated Tool Steel Construction
Mighty Armory rifle sizing die designs are precision machined to tight tolerances, ensuring consistent and uniform sizing and concentricity of the case for millions of cycles.
Each Gold Match 6.5 BR Sizing die is:
- CNC machined in the United States
- Produced from high-grade tool steel
- Heat treated to 60 Rockwell hardness
- Single-point cut for internal uniformity
- Finished with an ultra-smooth 5-bore interior surface
The hardened bore surface resists wear and maintains consistent sizing geometry over extended reload cycles.
Concentricity is maintained to approximately -.0005 at the mouth and shoulder transition, supporting consistent bullet alignment for precision applications.
A smooth and consistent internal finish is especially important in cartridges like 6.5 BR where small dimensional variations can influence vertical dispersion at extended distance.
Integrated Drop-In Mandrel Expander Shaft
One and done sizing is a unique feature of the Mighty Armory Rifle die. The 6.5mm BR Norma sizing die includes a Swiss-machined drop-in mandrel expander shaft, heat treated to 50 Rockwell for strength.
The mandrel assembly seats concentrically inside the die bore using a three-contact lockup system, ensuring stability and repeatability. This system:
- Promotes uniform neck expansion
- Supports consistent bullet seating
- Maintains alignment through the sizing stroke
- Accepts either a decapping pin or protective pointer
The modular design allows easy service without the use of specialized tools.
Single-Stroke Sizing and Decapping
Process 6.5 BR brass efficiently with one-pass resizing and depriming.
Included components:
- Primer flicker cap for Spring-loaded decapping
- Two .078” decapping pins
- Designed for extended service life
The spring-assisted decapping system helps prevent primer pullback and reduces the risk of press interruptions.
Shoulder bump adjustment range: 0 to approximately -.005”, allowing fine tuning for custom chambers and precision rifles.
What Sets the 6.5mm BR Gold Match Die Apart
- True full length 6.5 BR resizing
- Adjustable shoulder bump up to -.005”
- Restores brass to controlled SAAMI geometry
- Heat-treated tool steel construction
- Smooth 5-bore internal finish
- Concentricity held to -.0005
- Modular drop-in mandrel system
- Improved shooting accuracy
Experience the benefits during competition shooting!
Precision Performance Advantages
Uniform brass geometry directly contributes to:
- Consistent headspace control
- Reduced velocity variation
- Predictable chamber pressure
- Reliable bolt operation
- Increased brass life
Proper full length resizing establishes the mechanical consistency required for precision long-range shooting and competitive disciplines.
Lubrication Recommendations
For Single Stage or Turret Presses: We recommend a case sizing wax applied by your fingers.
For Progressive Presses: We recommend PEG75 lanolin spray.
Learn More About Setting Headspacing
For detailed setup guidance and performance insights, view the Mighty Armory Gold Match Rifle Sizing Die demonstration on YouTube.
See, Feel, and Shoot the Difference with Mighty Armory Precision Reloading Dies.
“World’s Toughest” Reloading Dies
Precision Reloading Tools
Made in the USA
“Get Tough Stay Mighty”
- "World's Toughest" Reloading Dies
- Precision Reloading Tools
- Made in the USA
Mighty Armory
