Last reviewed: 2026-04-19 by Jake Terry, FFL07/SOT3, NRA-certified firearms instructor.
For hunters pursuing elk, moose, or black bear in lead-restricted zones, the Remington Core-Lokt Copper 300 Winchester Magnum ammo bridges regulatory compliance and field performance. This 180-grain solid hollow point exits the muzzle at 2,850 fps, carrying 3,246 ft-lbs of energy — enough to drive through heavy shoulder bone on quartering shots while the monolithic copper construction sheds no fragments and retains 95%+ of original weight. California Proposition 65 compliant, reloadable brass, and Boxer-primed for straightforward component recovery.
Built for the Box
Remington engineers the Core-Lokt Copper from a single billet of pure copper, eliminating lead core separation and the fragmentation that fouls cleaning or contaminates game meat. The hollow point initiates expansion on impact — controlled petal formation doubles frontal diameter without shedding mass, critical when you need penetration through dense tissue and bone structure common to large-bodied game at extended yardage.
Specs at a Glance
| Spec | Value |
|---|---|
| Caliber | 300 Winchester Magnum |
| Bullet weight | 180 grains |
| Bullet type | Solid hollow point (monolithic copper) |
| Muzzle velocity | 2,850 fps |
| Muzzle energy | 3,246 ft-lbs |
| Rounds/box | 20 |
| Case | Brass |
| Primer | Boxer (lead-free) |
| Corrosive | No |
| Reloadable | Yes |
| Lead-free | Yes (CA Prop 65 compliant) |
| Intended use | Hunting (elk, moose, bear) |
| Manufacturer | Remington |
This load pairs with bolt-action rifles chambered in 300 Winchester Magnum — expect sub-MOA groups from quality barrels with 24-inch or longer tubes that maximize velocity retention. If you’re sighting in at 100 yards, zero 2.5 inches high to hold center-mass at 250 yards. Shop the full 300 Win Mag ammo catalog for alternative bullet weights and constructions.
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 firearm safety at all times
- Verify current state and local ammunition laws — some jurisdictions restrict copper projectiles or require additional permits
- Store away from solvents, oils, and moisture; lead-free primers remain sensitive to contamination
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