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Do 180gr Partitions Expand Properly On Elk?

April 5, 2026

Quick Answer

180 grain Partition bullets can be a good choice for hunting elk with a 30-06 Springfield, but their expansion performance depends on various factors, including velocity, shot placement, and elk size. In general, they tend to open up well on elk, but may not expand as much as other bullet types.

Bullet Performance Characteristics

The 180 grain Partition bullet is designed for deep penetration and reliable expansion. Its jacket is scored to create four lead partitions that separate and create a larger wound channel upon impact. This design allows the bullet to expand consistently, even at slower velocities. For a 30-06 Springfield, a muzzle velocity of at least 2,500 feet per second is recommended for optimal expansion.

Expansion Performance on Elk

When shot into an elk, the 180 grain Partition bullet can expand to around 0.5 to 0.7 inches in diameter, creating a wound channel of about 2-3 inches. This is sufficient for a quick kill, but may not be as effective on larger elk. Shot placement is critical, and aiming for the heart or lungs is essential for a quick and humane kill. A well-placed shot at close to medium range (100-200 yards) is ideal for expansion and penetration.

Real-World Testing and Results

In real-world testing, the 180 grain Partition bullet has performed well on elk, with many hunters reporting quick kills at relatively close ranges. However, it’s essential to note that elk can be unpredictable, and shot placement is crucial. Aiming for the vitals and using a muzzle velocity of at least 2,500 feet per second will increase the chances of a successful kill.

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