The Hornady .323 8mm 170 Grain RN InterLock bullet is an unprimed reloading component engineered for handloaders targeting medium to large game in dense brush and heavy timber. Featuring a blunt round-nose profile with an exposed lead tip, this projectile initiates rapid frontal expansion and creates broad wound channels even at moderate impact velocities. It incorporates Hornady's mechanical InterLock ring alongside internal jacket grooves, locking the one-piece lead core to the copper jacket to eliminate core-jacket separation and maintain high weight retention during deep penetration.

Key Features

• InterLock Mechanical Core Retention: A raised internal jacket ring embeds directly into the one-piece lead core, preventing jacket-core separation upon high-velocity impact for deep, straight-line terminal penetration.
• Round Nose Profile: The exposed lead tip and blunt frontal geometry promote immediate expansion and broad wound cavities across close-range terminal impacts.
• Engineered Jacket Grooves: Internal grooves weaken the upper section of the copper jacket to ensure controlled, uniform mushrooming across varied impact velocities.
• Grooved Cannelure: Features a dedicated cannelure that facilitates precise crimping for consistent bullet seating and reliable feeding in bolt-action and sporting rifles.

Specifications

• Calibre: 8mm
• Bullet Diameter: .323 in (8.20 mm "S-bore")
• Bullet Weight: 170 grains (11.02 grams)
• Bullet Profile: Round Nose (RN) with cannelure
• Ballistic Coefficient (G1): 0.217
• Sectional Density: 0.233
• Construction: Copper jacket with exposed lead core and InterLock ring
• Quantity: 100 projectiles per box (reloading components only)
• Target Game Weight Range: 50 lbs to 1,500 lbs (23 kg to 680 kg)

Who is the Hornady .323 8mm 170 Grain RN Interlock Bullets 100 Pack for?

• Handloaders loading for 8x57mm IS Mauser rifles — requires a true .323 in diameter bullet matched to standard "S-bore" (IS/JS) chamberings, pairing a moderate 170 grains weight with a 0.233 sectional density for reliable feeding and factory-equivalent ballistics in this 8mm reloading bullet category.
• Hunters targeting medium to large game in heavy brush at short range — provides an exposed lead round-nose design with a 0.217 G1 ballistic coefficient engineered for rapid frontal expansion on game weighing from 50 lbs to 1,500 lbs inside 150 to 200 metres.

Less suitable for: Long-range shooting beyond 200 to 250 metres where its low 0.217 G1 ballistic coefficient causes rapid velocity shedding; aerodynamic spitzer boat-tail hunting projectiles fit extended distances better. It is strictly unsuited for early-pattern military rifles with .318 inch bores, which generate dangerous chamber pressures when loaded with .323 inch bullets, and it should not be used on small vermin weighing under 50 lbs, where light, rapidly fragmenting varmint bullets are appropriate.