.257 Roberts
Index No. Wt. (grs.) Bullet Style Primer No. Barrel 
Length
R257 117 Soft Point Core-Lokt® 9 1/2 24"
Velocity (ft./sec.)
Cartridge Muzzle 100
yds.
200
yds.
300
yds.
400
yds.
500
yds.
117 SPCL 2650 2291 1961 1663 1404 1199
Energy (ft.-lbs.)
Cartridge Muzzle 100
yds.
200
yds.
300
yds.
400
yds.
500
yds.
117 SPCL 1824 1363 999 718 512 373
Short-Range’ Trajectory *
Cartridge 50
yds.
100
yds.
150
yds.
200
yds.
250
yds.
300
yds.
117 SPCL -0.1 zero -1.3 -4.1 -8.7 -15.3
Long Range” Trajectory *
Cartridge 100
yds.
150
yds.
200
yds.
250
yds.
300
yds.
400
yds.
500
yds.
117 SPCL 2.0 1.8 zero -4.1 -11.7 -36.1 -78.2

Note 1: Bullet does not rise more than 1" above line of sight from muzzle to sighting-in range.
Note 2: Bullet does not rise more than 3" above line of sight from muzzle to sighting-in range.
* Inches above or below line of sight.  Hold low for positive numbers, high for negative numbers.