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Custom Rifle Ammo 257 Weatherby Magnum

Custom Rifle Ammo 257 Weatherby Magnum

Part # FCS257WMMK1


Please provide additional information:
• Firearm make/model
• Barrel length (for rifle, include twist rate)
• Modifications to firearm
$109.99
  • Available
Warning for California Residents

Product Overview

With extremely tight tolerances on jacket thickness and uniformity, the precision-built Sierra MatchKing bullet delivers match-winning accuracy, every time.

Federal Custom Shop ammunition is built to order—not pulled out of inventory in a warehouse. As such, please allow more time for processing and delivery. Typically, your Custom Shop order will take two weeks to build, plus standard delivery time.

Specs

Bullet Weight 100
Bullet Style Sierra MatchKing
Caliber 257 Weatherby Magnum
Muzzle Velocity 3500
Ballistic Coefficient .394
Ballistic Coefficient G7 .369
Bullet Length In 1.08in. / 27.43mm
Package Quantity 20
Usage Target Shooting

Ballistics

Velocity in feet per second
Muzzle 100 Y 200 Y 300 Y 400 Y 500 Y
3500 3231 2978 2739 2512 2296
Energy in Foot Pounds
Muzzle 100 Y 200 Y 300 Y 400 Y 500 Y
2720 2317 1969 1665 1401 1171
Wind Drift in Inches (at 10 mph)
Muzzle 100 Y 200 Y 300 Y 400 Y 500 Y
0 0.6 2.6 6.0 11.0 17.9
Wind Drift in Inches (at 10 MPH Crosswind)
Average Range
50 Y 100 Y 200 Y 300 Y
-0.4 -1.8 -7.6
Height of bullet trajectory in inches above or below line of sight if zeroed at 100 yards. Sights 1.5 inches above bore line.
Long Range
50 Y 100 Y 200 Y 300 Y 400 Y 500 Y
0.1 0.9 -4.8 -14.3 -29.3
Height of bullet trajectory in inches above or below line of sight if zeroed at 100 yards. Sights 1.5 inches above bore line.

Video

Downloads