Remington Core-Lokt ammunition in .257 Roberts +P (part no. 28335) loads a 117-grain soft point bullet, the original controlled-expansion hunting bullet that has filled more tags than any other load since 1939. The tapered copper jacket is locked to a solid lead core, delivering the roughly 2X expansion and dependable weight retention that made Core-Lokt hunting’s first choice for more than 75 years. The +P loading adds velocity over standard .257 Roberts pressure, and Remington builds it into a brass case for reliable extraction and standard reloading compatibility. For .257 Roberts hunters who want a proven, time-tested bullet, this rifle ammunition is the classic choice.

Key Specifications

• The chambering is .257 Roberts +P, a higher-pressure loading of the classic flat-shooting .257 Roberts.
• The bullet weighs 117 grains, a versatile weight for deer-sized game.
• The bullet type is soft point, Core-Lokt’s original controlled-expansion design.
• The tapered copper jacket locks to a solid lead core, delivering roughly 2X expansion with dependable weight retention.
• The case material is brass, giving reliable extraction and standard reloading compatibility.
• Cost runs about $2.99 per round, competitive pricing for a proven big-game hunting load.
• Each box holds 20 rounds, enough to confirm zero and still hunt the season.
• Shipping weight per box runs 1.05 pounds, useful for shooters planning a case-quantity order.
• Muzzle velocity is listed at 2,650 feet per second, brisk speed for the +P loading.

Frequently Asked Questions

Is +P .257 Roberts safe in any rifle chambered for the cartridge? Check your rifle’s specifications before shooting +P ammunition; not every .257 Roberts rifle is rated for the higher +P pressure.

What makes Core-Lokt different from a modern bonded bullet? Its tapered copper jacket locks mechanically to a solid lead core rather than being chemically bonded, a design that has delivered controlled expansion since 1939.

Buy Remington Core-Lokt .257 Roberts 117gr

Three-quarters of a century of hunters have trusted the deadliest mushroom in the woods, and this load carries that same proven bullet. Order from our Lubbock, Texas gun shop and it ships fast to your door.