Availability: In Stock
The Hornady InterLock 303 caliber and 7.7mm Japanese rifle bullets are purpose-built for reloaders who hunt large game and demand consistent, predictable performance downrange. Each box contains 100 bullets with a .312 diameter and 174 grain round nose profile, sized to feed reliably through classic bolt-action rifles and vintage military platforms that chamber these less-common cartridges. Whether you're handloading for a 303 British, 7.7x58mm Arisaka, or similar round-nose applications, these bullets deliver the construction and terminal performance serious hunters expect.
InterLock bullets are engineered around a one-piece core and jacket bond, eliminating the separation failures that plague cheaper construction. The proprietary InterLock ring system—a mechanical locking ring between core and jacket—ensures the bullet stays together under the violent forces of expansion, maintaining momentum and creating a more substantial wound channel. For hunters pursuing elk, moose, or other heavy game, that controlled, retained-weight expansion is the difference between a clean kill and a wounded animal.
The 174 grain round nose configuration balances sectional density and velocity potential across the velocity windows typical of 303 and 7.7mm Japanese loads. Reloaders working with published load data will find these bullets straightforward to seat and chrono, with consistent performance that simplifies load development and ammunition testing at the range.
| Caliber | 303 Cal & 7.7mm Japanese |
| Bullet Diameter | .312" |
| Weight | 174 grains |
| Bullet Style | Round Nose |
| Quantity | 100 bullets per box |
| Core/Jacket Construction | One-piece, InterLock ring system |
303 British is the standard chambering for Lee-Enfield rifles and other British and Commonwealth military arms. 7.7x58mm Japanese loads rifles like the Arisaka Type 99 and Type 38. Both cartridges remain popular with hunters and historical firearms enthusiasts. Always verify your rifle's chamber and consult published load data before reloading.
Yes. The 174 grain InterLock round nose is engineered for controlled expansion and reliable performance on large game. The core-and-jacket locking system helps maintain bullet integrity and weight retention, which supports deeper penetration and more consistent energy transfer.
Each box contains 100 Hornady InterLock bullets.
No special equipment is required beyond your standard reloading press, dies, and tools. Consult Hornady or other trusted reloading manuals for load data, seating depths, and procedure specific to your rifle and cartridge.
SKU: 115661138 • Width: 2.6in • Height: 2.2in • Depth: 4.1in • Weight: 3.7oz
Availability: In Stock
The Hornady InterLock 303 caliber and 7.7mm Japanese rifle bullets are purpose-built for reloaders who hunt large game and demand consistent, predictable performance downrange. Each box contains 100 bullets with a .312 diameter and 174 grain round nose profile, sized to feed reliably through classic bolt-action rifles and vintage military platforms that chamber these less-common cartridges. Whether you're handloading for a 303 British, 7.7x58mm Arisaka, or similar round-nose applications, these bullets deliver the construction and terminal performance serious hunters expect.
InterLock bullets are engineered around a one-piece core and jacket bond, eliminating the separation failures that plague cheaper construction. The proprietary InterLock ring system—a mechanical locking ring between core and jacket—ensures the bullet stays together under the violent forces of expansion, maintaining momentum and creating a more substantial wound channel. For hunters pursuing elk, moose, or other heavy game, that controlled, retained-weight expansion is the difference between a clean kill and a wounded animal.
The 174 grain round nose configuration balances sectional density and velocity potential across the velocity windows typical of 303 and 7.7mm Japanese loads. Reloaders working with published load data will find these bullets straightforward to seat and chrono, with consistent performance that simplifies load development and ammunition testing at the range.
| Caliber | 303 Cal & 7.7mm Japanese |
| Bullet Diameter | .312" |
| Weight | 174 grains |
| Bullet Style | Round Nose |
| Quantity | 100 bullets per box |
| Core/Jacket Construction | One-piece, InterLock ring system |
303 British is the standard chambering for Lee-Enfield rifles and other British and Commonwealth military arms. 7.7x58mm Japanese loads rifles like the Arisaka Type 99 and Type 38. Both cartridges remain popular with hunters and historical firearms enthusiasts. Always verify your rifle's chamber and consult published load data before reloading.
Yes. The 174 grain InterLock round nose is engineered for controlled expansion and reliable performance on large game. The core-and-jacket locking system helps maintain bullet integrity and weight retention, which supports deeper penetration and more consistent energy transfer.
Each box contains 100 Hornady InterLock bullets.
No special equipment is required beyond your standard reloading press, dies, and tools. Consult Hornady or other trusted reloading manuals for load data, seating depths, and procedure specific to your rifle and cartridge.
SKU: 115661138 • Width: 2.6in • Height: 2.2in • Depth: 4.1in • Weight: 3.7oz