The Norma ODIN .300 Winchester Short Magnum (WSM) 180 gr ammunition (SKU: 20178242) is a lead-free centerfire rifle cartridge engineered for medium-to-large big game hunting. Featuring a monolithic 100% copper boat tail projectile with a polymer tip, it delivers rapid controlled expansion, deep straight-line penetration, and near-100% weight retention. Factory ballistic testing from a standard 610 mm (24-inch) barrel establishes a muzzle velocity of 890 m/s (2,920 fps) and a muzzle energy of 4,636 J (3,409 ft-lbs), with a G1 ballistic coefficient of 0.462. To reduce barrel fouling, the projectile is treated with Norma's proprietary NAFT anti-friction coating. Each box contains 20 factory-loaded cartridges designed strictly for rifles chambered in .300 WSM.

Key Features

• Monolithic Copper Construction: Fully lead-free bullet design that delivers near-100% weight retention and high structural integrity upon impact.
• Polymer-Tipped Cavity: Aerodynamic tip initiates controlled mushrooming across a broad velocity spectrum from muzzle contact out past 400 metres.
• NAFT Anti-Friction Coating: Proprietary surface treatment minimizes copper bore fouling and extends rifle barrel life.
• Downrange Energy Retention: Maintains 3,951 J at 100 m, 3,351 J at 200 m, and 2,824 J at 300 m, with a recommended zero (MRD) set at 180 metres.

Specifications

• Calibre: .300 Winchester Short Magnum (.300 WSM)
• Bullet Weight: 180 grains (11.7 grams)
• Bullet Type: Tipped Expanding Boat Tail Lead-Free (BT-LF monolithic copper)
• Ballistic Coefficient: 0.462 (G1)
• Muzzle Velocity: 890 m/s (2,920 fps)
• Muzzle Energy: 4,636 J (3,409 ft-lbs)
• Velocity at 100 m / 200 m / 300 m: 822 m/s / 757 m/s / 695 m/s
• Energy at 100 m / 200 m / 300 m: 3,951 J / 3,351 J / 2,824 J
• Packaging: 20 cartridges per box
• Compatibility: Centerfire rifles chambered strictly for .300 WSM

Who is the Norma ODIN .300 WSM 180gr for?

• Big game hunters targeting sambar deer, red deer, or wild boar — delivers 4,636 J of muzzle energy and an 890 m/s muzzle velocity using a 180-grain monolithic copper bullet designed for deep penetration and near-100% weight retention on heavy game.
• Hunters operating in non-toxic ammunition compliance zones — uses a 100% lead-free monolithic copper projectile with a 0.462 G1 ballistic coefficient that maintains reliable terminal expansion from muzzle contact out to 400 metres.

Less suitable for: Ultra-long-range hunting past 400 metres where monolithic copper bullets face diminishing terminal upset, which are better served by purpose-built long-range bonded lead-core hunting ammunition, or rifles chambered in .300 Winchester Magnum, .300 PRC, or .308 Winchester due to cartridge dimension incompatibility.