257 Roberts - 120 Grain

Caliber
Diameter
Weight & Style
Ballistic Coefficient
Sectional Density
Part #
25
.257"
120Gr. Spitzer
0.391
0.260
OAL 1.175
35643
Case Type:
Cart. Max. OAL:
Primer Type:
Barrel Length/Make:
Barrel Twist:
Winchester
2.760"
CCI 200
24" lilja
1-10"
Powder Type:
Powder Charge Grains
Muzzle Velocity:
F.P.S. / M.P.S. (Feet Per Second / Meters Per Second)
Load Density: (Volume)
H4895
Max. 34.0*
32.0
30.0
2660 / 810
2538 / 773
2413 / 735
73%
68%
64%
IMR4320
Max. 34.5*
32.5
30.5
2690 / 819
2510 / 765
2330 / 710
72%
68%
64%
Big Game
Max. 39.0
37.0
35.0*
2732 / 832
2674 / 815
2526 / 769
80%
76%
72%
IMR4064
Max. 35.0*
33.0
31.0
2750 / 838
2630 / 801
2510 / 765
75%
71%
66%
Email Newsletter
Hunting Stories, Deals, Tips & Information