Last reviewed: 2026-04-18 by Jake Terry, FFL07/SOT3, NRA-certified firearms instructor.
The 300 Winchester Magnum E-Tip from Nosler is a lead-free hunting cartridge built around a 180-grain monolithic gilding metal alloy projectile. At 2950 feet per second muzzle velocity and 3478 foot-pounds of energy, this load delivers flat trajectory and terminal performance on large game while meeting California, Arizona, and federal lead-ban compliance requirements. The OD green polymer tip prevents in-magazine deformation, boosts ballistic coefficient to 0.523, and initiates uniform expansion on impact. One-piece construction ensures 95%+ weight retention and deep wound channels through heavy bone and muscle.
Built for the Hunt
Nosler engineers the E-Tip with a patent-pending alloy that reduces copper fouling compared to pure gilding metal bullets. The boat-tail base cuts drag in flight, extending effective range on mountain hunts where 400-yard shots are common. The Energy Expansion Cavity behind the polymer tip controls petal deployment, opening to approximately 1.8× original diameter in 10% ballistic gelatin while retaining the shank for pass-through wound channels on broadside shots. Brass cases are drawn to Nosler’s custom specifications, inspected during hand-packaging, and primed with non-corrosive Boxer primers for reloaders planning to resize and reload the once-fired hulls.
The Numbers
| Spec | Value |
|---|---|
| Caliber | 300 Winchester Magnum |
| Bullet weight | 180 Grains |
| Bullet type | Nosler Expansion Tip (E-Tip) Polymer Tip |
| Muzzle velocity | 2950 Feet Per Second |
| Muzzle energy | 3478 Foot Pounds |
| G1 Ballistic Coefficient | 0.523 |
| Sectional Density | 0.271 |
| Rounds/box | 20 Round |
| Case | Brass |
| Primer | Boxer |
| Corrosive | No |
| Lead Free | Yes |
| Reloadable | Yes |
| Intended use | Hunting |
| Manufacturer | Nosler |
This cartridge fits magazine-length actions chambered for 300 Winchester Magnum, including bolt rifles from Browning, Remington, Weatherby, and Winchester. The 180-grain weight balances velocity with sectional density for large game such as elk, moose, and bear at ranges from 50 to 400+ yards. Shop our full inventory of 300 Win Mag ammo for additional grain weights and bullet designs.
Safe Handling & Compliance
Federal law requires purchasers to be at least 18 years old for rifle and shotgun ammunition, and at least 21 for handgun ammunition. Ammunition cannot be shipped to certain states, counties, and cities — review our ammunition shipping restrictions before ordering. Store ammunition in a cool, dry location away from heat sources and out of reach of unauthorized users.
- Follow the four universal rules of firearms safety at all times
- Verify your state and local laws regarding ammunition purchases and possession before ordering
- This product contains materials known to the State of California to cause cancer and reproductive harm under Proposition 65
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