Last reviewed: 2026-04-18 by Jake Terry, FFL07/SOT3, NRA-certified firearms instructor.
For hunters who trust proven terminal performance over marketing hype, 280 Remington ammo in the Core-Lokt platform delivers field-tested expansion and weight retention. The Remington Core-Lokt 140-grain jacketed soft point exits the muzzle at 3000 feet per second with 2797 foot-pounds of energy—velocity and punch that extends effective range on medium game without the shoulder fatigue of magnum cartridges. A 280 Remington is a 7mm cartridge firing a .284-inch diameter bullet from a necked-down .30-06 case, offering flatter trajectory than .270 Winchester and less recoil than .30-06 Springfield—ideal for open-country mule deer and timber whitetail alike.
Built for the Box
The progressively tapered copper jacket locks to the lead core via a mechanical bond—expansion begins at the exposed soft point, and the jacket peels back in controlled layers rather than fragmenting. Remington introduced this design in 1939, and it remains the benchmark for hunting bullets that retain 60-75% of original weight after impact. Brass cases carry Boxer primers for clean ignition and full reloadability. Each 20-round box ships non-corrosive and ready for the field.
The Numbers
| Spec | Value |
|---|---|
| Caliber | 280 Remington |
| Bullet weight | 140 Grains |
| Bullet type | Jacketed Soft Point (Core-Lokt) |
| Muzzle velocity | 3000 fps |
| Muzzle energy | 2797 ft-lbs |
| Rounds/box | 20 |
| Case | Brass |
| Primer | Boxer |
| Corrosive | No |
| Reloadable | Yes |
| Intended use | Hunting |
| Manufacturer | Remington |
At 200 yards, the 140-grain JSP retains sufficient velocity for expansion on deer-sized vitals, and the tapered jacket ensures consistent mushrooming even at reduced impact speeds. Pair this load with a rifle zeroed at 200 yards for minimal holdover inside 250. Browse our full selection of 280 ammo for alternative bullet weights and styles.
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.
- Treat every firearm as if it is loaded. Keep the muzzle pointed in a safe direction. Keep your finger off the trigger until ready to fire. Be certain of your target, what is in line with it, and what is beyond it.
- Verify current federal, state, and local laws governing ammunition purchase and possession in your jurisdiction before ordering.
- This ammunition contains lead. Wash hands thoroughly after handling. Store in original packaging away from moisture and temperature extremes.
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