The Hornady .338 Calibre 225 Grain Spire Point – Recoil Proof (SP-RP) InterLock projectile is an unprimed reloading component engineered for big game hunting cartridges. Designed for handloaders using cartridges such as the .338 Winchester Magnum, .338 Lapua Magnum, .338 Remington Ultra Magnum, and .338-06, this bullet provides controlled terminal expansion and high mass retention. Its secant ogive profile and heavy-for-calibre construction deliver deep penetration on large, heavy-boned game within standard bush and moderate hunting ranges.

Key Features

• InterLock Mechanical Ring: An internal raised ring mechanically locks the one-piece lead core to the gilding metal jacket, eliminating core-jacket separation during impact to ensure deep wound channels.
• Recoil-Proof (RP) Spire Point: Features an exposed lead tip specifically hardened and configured to resist nose flattening and tip deformation inside the magazine box under heavy magnum recoil.
• Controlled Expansion Jacket: Engineered with interior jacket wall grooves that weaken the nose to initiate reliable expansion at lower velocities, backed by a jacket that thickens toward the base to control mushrooming.
• Integrated Cannelure: Provides an accurate crimping location to maintain precise overall cartridge length and prevent bullet setback under field recoil.

Product Specifications

• Calibre: .338" (8.58 mm)
• Bullet Weight: 225 grains (approx. 14.58 grams)
• Bullet Profile: Spire Point – Recoil Proof (SP-RP) with exposed lead nose
• G1 Ballistic Coefficient: 0.397
• Sectional Density: 0.281
• Cannelure: Yes
• Box Quantity: 100 projectiles
• Cartridge Compatibility: .338 Winchester Magnum, .338 Lapua Magnum, .338 RUM, .338-06, and other .338 centrefire rifle platforms

Who is the Hornady .338 225 Grain SP-RP InterLock Bullet for?

• Sambar and Red Deer Hunters: Utilises a heavy 225 grain weight and high sectional density in .338" calibre to provide the momentum and weight retention needed to punch through the heavy shoulder bone and dense muscle of mature stags inside 300 to 400 metres.
• Northern and Outback Scrub Bull and Boar Hunters: Relies on the mechanically locked core-and-jacket design of this reloading rifle projectile to withstand severe impact on thick-skinned, heavy-boned game without breaking apart, even when fired from hard-recoiling magazine rifles.

Less suitable for: Long-range hunting beyond 400 to 500 metres where a G1 ballistic coefficient of 0.397 sheds velocity quickly, requiring high-BC boat-tail or polymer-tipped hunting bullets instead; or close-range magnum impacts exceeding 2,900 fps, where monolithic copper or bonded core projectiles are better suited to prevent lead core fragmentation.