257 Roberts Ackley Improved - 85 Grain

Caliber
Diameter
Weight & Style
Ballistic Coefficient
Sectional Density
Part #
25
.257"
85Gr. Spitzer
0.329
0.184
OAL 1.000
43004
25
.257"
85Gr. Spitzer
0.329
0.184
OAL 1.000
51045
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)
Big Game
Max. 48.5
46.5
44.5*
3388 / 1032
3235 / 986
3136 / 955
87%
84%
80%
H380
Max. 49.5*
47.5
45.5
3400 / 1036
3280 / 999
3160 / 963
89%
85%
82%
IMR4895
Max. 45.0*
43.0
41.0
3402 / 1036
3237 / 986
3072 / 936
85%
81%
77%
Varget
Max. 45.5
43.5*
41.5
3407 / 1038
3323 / 1012
3153 / 961
84%
80%
77%
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