Hornady Custom 303 British 150 Grain InterLock SP Ammo - 20 Rounds

The Hornady Custom 303 British 150 grain InterLock SP ammunition delivers the accuracy and reliable performance that made the 303 British a go-to cartridge for hunters worldwide. This factory load pairs Hornady's proven InterLock soft point bullet with precision reloading standards, giving you handloaded-grade consistency in a convenient 20-round box. Whether you're hunting medium-sized game or stepping up to larger animals, this cartridge balances the penetration and expansion needed for a clean, ethical harvest.

The InterLock bullet design is built around a mechanical locking system that keeps the core and jacket together through bone and muscle, preventing the jacket separation that can ruin a hunt. Hornady's secant ogive bullet profile—a design innovation that's become industry standard—minimizes drag and flattens trajectory, so your shots stay true at distance. Every round is hand inspected before it leaves the factory, a quality control step that reflects Hornady's commitment to consistency.

If you're working with a vintage or modern 303 British rifle, this ammunition respects the cartridge's heritage while taking advantage of modern manufacturing. The 150-grain weight strikes a practical balance for the caliber, suitable for medium game like deer and wild hogs, and capable of handling larger game when shot placement is sound. It's the kind of ammo that makes sense for hunters who understand their rifle and respect their quarry.

Key Features

• Hornady InterLock bullet with mechanical locking jacket and core
• Secant ogive design for flatter trajectories and reduced wind drift
• Hand-inspected for consistency and quality control
• Suitable for medium and large game hunting
• Factory load with handloading-grade precision

Specifications

Frequently Asked Questions

What game is this 303 British ammo suitable for?

Hornady Custom 303 British ammunition is designed for medium game ranging from 50 to 300 pounds—deer, wild hogs, and similar-sized animals—as well as large game from 300 to 1500 pounds when shot placement is precise. The 150-grain InterLock bullet balances expansion and penetration for ethical, effective hunting across that range.

How does the InterLock bullet design work?

The InterLock bullet uses a mechanical locking system that anchors the lead core to the copper jacket. This design prevents jacket and core separation during expansion, maintaining penetration through muscle and bone for more reliable terminal performance.

What's included in a box of Hornady Custom 303 British?

Each box contains 20 rounds of loaded ammunition, ready to use. Every round is hand inspected by Hornady before packaging to ensure consistent quality and performance.

Will this ammunition work in my vintage 303 British rifle?

Hornady Custom 303 British ammunition is loaded to standard specifications for the cartridge and should function in any rifle chambered in 303 British. However, always verify chamber and bore condition before firing any rifle, and follow safe shooting practices appropriate to your specific firearm.