257 Roberts - 115 Grain

Caliber
Diameter
Weight & Style
Ballistic Coefficient
Sectional Density
Part #
25
.257"
115Gr. Spitzer
0.453
0.249
OAL 1.205
51050
25
.257"
115Gr. Spitzer
0.453
0.249
OAL 1.207
25115
25
.257"
115Gr. Spitzer
0.389
0.249
OAL 1.145
16318
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)
IMR3031
Max. 33.5*
31.5
29.5
2626 / 800
2511 / 765
2397 / 730
73%
69%
65%
IMR4320
Max. 34.5*
32.5
30.5
2710 / 826
2532 / 771
2354 / 717
72%
68%
64%
H4895
Max. 35.0
33.0
31.0*
2725 / 830
2593 / 790
2463 / 750
75%
70%
66%
Big Game
Max. 40.5
38.5
36.5*
2740 / 835
2638 / 804
2542 / 774
83%
79%
74%
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