257 Roberts Ackley Improved - 100 Grain

Caliber
Diameter
Weight & Style
Ballistic Coefficient
Sectional Density
Part #
25
.257"
100Gr. Spitzer
0.393
0.216
OAL 1.115
25100
25
.257"
100Gr. Spitzer
0.377
0.216
OAL 1.035
16317
Case Type:
Cart. Max. OAL:
Primer Type:
Barrel Length/Make:
Barrel Twist:
Winchester
2.780"
Fed. 210
24" Wiseman
1-10"
Powder Type:
Powder Charge Grains
Muzzle Velocity:
F.P.S. / M.P.S. (Feet Per Second / Meters Per Second)
Load Density: (Volume)
H380
Max. 45.5*
43.5
41.5
3028 / 922
2913 / 887
2798 / 852
85%
81%
77%
RL19
Max. 49.5*
47.5
45.5
3088 / 941
2953 / 900
2818 / 858
95%
91%
87%
RL15
Max. 43.0*
41.0
39.0
3132 / 954
3007 / 916
2882 / 878
79%
75%
72%
W760
Max. 47.0
45.0*
43.0
3139 / 956
3012 / 918
2916 / 888
87%
83%
80%
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