How does bullet construction affect .338 Lapua terminal performance?

Bullet Design

The .338 Lapua Magnum is a versatile cartridge suitable for long-range shooting, hunting, and military applications. Its terminal performance is heavily influenced by the bullet design, particularly the shape, material, and construction method. For example, a bullet with a bonded core, such as the Hornady A-MAX, will exhibit better weight retention and penetration than a bullet with a separate core, like the Barnes TSX.

Jacket Design

The jacket design also plays a crucial role in determining the bullet’s terminal performance. A jacket that is too thin will not provide adequate support to the core, leading to excessive expansion and potential fragmentation. On the other hand, a jacket that is too thick will hinder expansion and increase the risk of core separation. A well-designed jacket, such as the Hornady AMP, offers a balance between these two extremes, providing optimal expansion and penetration.

Core Material and Construction

The core material and construction method used in the bullet also significantly impact its terminal performance. A bonded core, such as the AccuBond, offers better weight retention and penetration than a separate core. Additionally, the core’s density and shape can affect the bullet’s expansion and penetration characteristics. A denser core, like the Sierra Tipped MatchKing, will exhibit better penetration and weight retention than a less dense core.