The Lyman Rifle Mould Double Cavity 30 Cal 170 Gr (MPN: LY-M60291) is a precision-engineered bullet casting block designed for Australian reloaders who demand consistency, durability, and accuracy. Utilizing the classic Lyman bullet design #311291, this double-cavity mould allows handloaders to cast two projectiles simultaneously, significantly increasing casting efficiency. Crafted from solid leaded-steel, the mould blocks undergo a specialized heat-treatment process that produces a deep blue finish. This blued surface minimizes the break-in period and prevents molten lead from adhering to the mould faces, ensuring clean releases and highly concentric bullets. For Australian sporting shooters, this mechanical tool offers a reliable, long-term solution for custom projectile production without any electrical requirements or local compatibility concerns.

• Solid Leaded-Steel Construction: Unlike lightweight aluminum alternatives, these heat-treated steel blocks offer superior heat retention and structural stability, maintaining consistent casting temperatures for longer runs.
• Hardened Steel Alignment Pins: Features precision-ground alignment pins that ensure the two halves of the mould close perfectly every time, preventing bullet seam lines and out-of-round projectiles.
• Gas Check Profile: The #311291 bullet design features a heel specifically stepped to accept a copper gas check, allowing the cast lead bullet to be driven at velocities exceeding 1,500 to 2,000+ feet per second (fps) without causing bore leading.
• Double Cavity Efficiency: Casts two 170-grain projectiles simultaneously, reducing the time spent at the casting bench while maintaining strict quality control.
• Anti-Adhesion Blued Finish: The factory heat-treatment oxidizes the metal, creating a protective barrier that reduces lead buildup and makes bullet release smooth and effortless.

Specifications:

• Manufacturer Part Number (MPN): LY-M60291
• Lyman Bullet Design Number: #311291
• Calibre: .30 Caliber
• Nominal Projectile Diameter: .311 inches (can be sized to .309 inches depending on the lead alloy used)
• Bullet Weight: 170 Grains (gr)
• Bullet Profile: Round Nose (RN) with Gas Check (GC)
• Cavity Count: Double Cavity
• Material: Heat-treated, blued solid leaded-steel
• Required Accessories: Requires Lyman Double Cavity Mould Handles and Lyman Top Punch #465 for sizing (both sold separately)
• Power Source: None (100% mechanical hand tool; no 240V electricity or SAA/RCM certification required)

Who It's For:

This Lyman bullet mould is specifically designed for precision handloaders, competitive target shooters, and hunters in Australia who shoot traditional .30 caliber rifles. It is highly suited for those reloading classic cartridges such as the .30-30 Winchester, .308 Winchester, .30-06 Springfield, and .300 AAC Blackout. If you are looking to reduce your per-round ammunition costs, customize your projectile alloy hardness, or ensure a steady supply of high-performance hunting and plinking projectiles, this robust steel mould provides the accuracy and longevity required for high-volume casting.