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Hornady OAL Modified Case 30-30 #A3030

$20.00 incl GST

Hornady for Reloading Tools

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14278

Hornady, Reloading, Accessories

Specifications

brand: hornady
equipment: oal gauges

Description

Hornady OAL Gauge Modified Case 30-30 A3030

These enclosures have been customized specifically for use with Lock-N-Load Precision gauges. Attaching them to the gauges with a particularly fine thread ensures that they remain absolutely square for exact alignment in the chamber of your rifle. Second, the case's neck is completely spherical and slightly opened to allow a standard diameter bullet to easily and concentrically glide into the case mouth, ensuring the most precise results conceivable.

⁍ Modified cases for use with Precision Gauges
⁍ Uses fine thread to keep case square for precise chamber alignment
⁍ Rounds neck of case and opens to allow a standard diameter bullet to slip into case mouth

Product Information:

➼ Brand: Hornady
➼ MPN: A3030
➼ Cartridge: 30-30
➼ Additional Features: Modified Case
➼ Material: Brass
 

Best Suited For

  • Reloaders working with .30-30 Winchester rifles
  • Lever-action shooters fine-tuning cartridge length
  • Hunters seeking consistent and safe ammunition performance
  • Users of the Hornady Lock-N-Load O.A.L. Gauge system

When To Use It

  • During load development to determine optimal seating depth
  • Measuring distance to the rifling (lands)
  • Setting consistent bullet jump for accuracy
  • Comparing chamber dimensions between rifles

Technical Information

  • Product Code: #A3030
  • Calibre: .30-30 Winchester
  • Material: Brass
  • Series: Hornady “A” Series modified cases
  • Manufacturing Standard: SAAMI spec
  • Design Features:
    • Threaded case head for O.A.L. gauge attachment
    • Slightly oversized neck (~0.002") for smooth bullet movement
    • Precision-machined for repeatable measurements
  • Compatibility:
    • Hornady Lock-N-Load® O.A.L. Gauge (straight or curved models)
    • Requires calipers for measurement
  • Important Notes:
    • Not intended for live firing
    • May not function in tight-neck chambers

FAQs

Q: What does this modified case actually do?
A: It allows a bullet to move freely so you can measure exactly where it contacts the rifling, helping determine maximum usable COAL.

Q: Why is this important for .30-30 rifles?
A: While many .30-30 rifles (especially lever-actions) have magazine length limits, this tool helps ensure safe and consistent chamber fit, particularly for custom loads.

Q: Do I need other tools?
A: Yes—you’ll need the Hornady O.A.L. Gauge and calipers (a comparator is recommended for best precision).

Q: Is it reusable?
A: Yes. With proper care, it can be used repeatedly for load development.

Delivery and Compliance

  • Legal Status: No firearms licence required (measurement/reloading accessory)
  • Shipping: Standard courier delivery across NZ
  • Restrictions: None (non-controlled item)
  • Compliance: Must be used in accordance with safe reloading practices and NZ firearm laws

Questions?

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