The Lapua .224 55-grain SP refers to a .224 caliber (5.56mm) 55-grain Soft Point (SP) bullet made by Lapua, a high-end Finnish ammunition and components manufacturer known for precision and quality.

Here’s a breakdown of what it means.

• Caliber: .224 (typically used in .223 Remington / 5.56 NATO)

• Weight: 55 grains

• Type: SP (Soft Point) – a bullet with an exposed lead tip designed to expand upon impact, commonly used for hunting varmint or medium game.