257 Roberts Ackley Improved - 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
2.780"
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)
A-4350
Max. 44.5*
42.5
40.5
2835 / 864
2694 / 821
2552 / 777
89%
85%
81%
IMR4831
Max. 45.5*
43.5
41.5
2869 / 874
2724 / 830
2579 / 786
86%
83%
79%
IMR4350
Max. 45.5*
43.5
41.5
2931 / 893
2792 / 851
2654 / 808
86%
82%
78%
RL15
Max. 41.0
39.0
37.0*
2950 / 899
2833 / 863
2715 / 827
76%
73%
69%
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