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Discontinued

Nosler Partition 257 Roberts +P

Part # P257B
  • Bullet Weight: 120
$44.95
  • Available In-Store Only
Warning for California Residents
Restrictions

Product Overview

The Nosler® Partition® was the first bullet loaded in the Federal Premium® line, and it continues to be a standard for consistency and reliability. Its partitioned lead core allows the front half of the bullet to mushroom on impact, but keeps the back half intact for deep penetration.

  • World-renowned bullet features a partitioned lead core
  • Front half mushrooms, producing rapid expansion and energy release
  • Back half remains intact, ensuring deep penetration through weight retention
  • Perfect for all big game at close to mid-ranges

Specs

Caliber 257 Roberts +P
Bullet Weight 120
Bullet Style Nosler Partition
Muzzle Velocity 2800
Ballistic Coefficient .391
Bullet Length In 1.175in. / 29.85mm
Package Quantity 20
Usage Medium Game

Ballistics

Velocity in feet per second
Muzzle 100 Y 200 Y 300 Y 400 Y 500 Y
2800 2569 2349 2140 1941 1755
Energy in Foot Pounds
Muzzle 100 Y 200 Y 300 Y 400 Y 500 Y
2089 1758 1470 1220 1004 821
Wind Drift in Inches (at 10 mph)
Muzzle 100 Y 200 Y 300 Y 400 Y 500 Y
0 0.9 3.4 8.2 15.2 25.0
Wind Drift in Inches (at 10 MPH Crosswind)
Average Range
50 Y 100 Y 200 Y 300 Y
-0.1 -3.8 -13.9
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
0.8 1.9 -8.3 -24.0 -49.2
Height of bullet trajectory in inches above or below line of sight if zeroed at 100 yards. Sights 1.5 inches above bore line.

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