Weatherby Select Plus ammunition in 257 Weatherby Magnum (brand part no. F257100SCO) loads a 100-grain Hammer Custom solid-copper bullet, pairing Roy Weatherby’s original flat-shooting magnum with a purpose-engineered terminal design. Select Plus is built with the ultimate in speed, power, and velocity in mind, engineered to be the flattest-shooting, hardest-hitting, most accurate factory ammunition Weatherby sells. Hammer Bullets are turned on a CNC lathe from a unique solid-copper blend, with every bullet weighed and micrometer-measured during production for unmatched consistency. The hollow-point nose initiates expansion immediately on impact, shedding sharp petals while the blunt-fronted remainder of the bullet stays intact for a devastating wound channel. For 257 Weatherby Magnum shooters who want explosive terminal performance at extreme velocity, this rifle ammunition is built for that job.

Key Specifications

• The chambering is 257 Weatherby Magnum, Roy Weatherby’s original flat-shooting magnum design.
• The bullet weighs 100 grains, a light, fast-stepping weight matched to this magnum’s velocity.
• The bullet is Hammer Custom, a CNC-lathe-turned solid-copper design.
• Each bullet is weighed and micrometer-measured during production for exceptional consistency.
• The hollow-point nose sheds sharp petals on impact while the blunt-fronted shank stays intact for a devastating wound channel.
• The bullet is engineered specifically for Weatherby’s flat-shooting cartridges, matched to this magnum’s velocity.
• The case material is brass, giving reliable extraction and standard reloading compatibility.
• Shipping weight per box runs 1.2 pounds, useful for shooters planning a case-quantity order.
• Cost runs about $4.42 per round, in line with premium solid-copper varmint and predator ammunition.
• Each box holds 20 rounds, a practical count for a range or predator-calling session.

Frequently Asked Questions

How does the Hammer Custom bullet perform on impact? The hollow-point nose sheds sharp petals immediately, while the remaining blunt-fronted shank stays intact and drives through for a devastating wound channel.

What is 257 Weatherby Magnum built for? It is Roy Weatherby’s original design, an extremely flat-shooting magnum built for varmints and big game alike at long range.

Buy Weatherby Select Plus 257 Wby Mag 100gr Hammer

Extreme velocity deserves a bullet engineered to make the most of it, and Hammer Custom is built specifically for Weatherby’s speed. Order from our Lubbock, Texas gun shop and it ships fast to your door.