- Sierra Pro-Hunter 180 grain Spitzer (SPT) bullet for .303 Cal/7.7mm (.311in) rifles
- Diameter: 0.311in — fits .303 British, 7.7mm Arisaka and 7.65mm Mauser
- Flat-base design with custom-tapered jacket for maximum expansion and deep penetration
- G1 ballistic coefficient 0.411; sectional density 0.266
- Non-coated bullet, no cannelure
- Component bullet only — not loaded ammunition; for reloading use
- Box of 100, made in the USA by Sierra
Sierra's Pro-Hunter 180 grain Spitzer bullets are precision reloading components for the larger .311in diameter service cartridges, including .303 British, 7.7mm Arisaka and 7.65mm Mauser. Each bullet uses Sierra's traditional flat-base design paired with a custom-tapered jacket, giving reloaders a proven combination of accuracy, controlled expansion and deep penetration on medium to large game. The Spitzer profile keeps trajectory flat and retains energy well downrange, making this a sound choice for stalkers and hunters running older military-surplus actions such as Lee-Enfields as well as modern .303 rifles. Supplied non-coated with no cannelure, at 0.311in diameter and a sectional density of 0.266, these bullets are built for one-shot, game-stopping performance without sacrificing weight retention. This is a component bullet only, not loaded ammunition — for use by reloaders working up their own .303 British or 7.7mm loads. Sold in a box of 100, manufactured by Sierra in the USA.
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