256 Winchester Magnum


Firearm :
Barrel :
Twist:
Optics:
Distance :
Shots :
Bullet Type :
Bullet Diam :
Bullet Mfg :
 Marlin 1894sc
22"
1:16"
24X
50y
10
75gr Vmax
.257"
Hornady

Powder Weight /Velocity Data for the 75gr Hornady Vmax

PW vs Vel graph for 256 Win Mag with 75gr Hornady Vmax
Graph produced by "GMDR.Load"

 

GMDR assumes NO liability for mishaps of any kind resulting from the use or misuse of this data

                        256 Winchester Magnum                         75gr    vmax
PR: WSR       CM: Win       TempF: 50       OAL: 1.920"
        PT          PW   Vel   SD   GS 
AA1680 12.0 1548.0 27.4 1.71
  13.0 1682.9 41.5 1.67
  14.0 1826.5 17.6 1.57
  15.0 1987.1 43.9 3.2
  16.0 2125.1 43.7 2.9
 
                        256 Winchester Magnum                         75gr    vmax
PR: WSR       CM: Win       TempF: 54       OAL: 1.920"
        PT          PW   Vel   SD   GS 
AA2015 16.0 1861.5 22.8 1.34
  17.0 1982.1 30.9 1.64
  18.0 2174.2 32.7 1.98
  19.0 2287.3 24.0 1.79
  20.0 2419.5 26.5 1.52
 
GMDR assumes NO liability for mishaps of any kind resulting from the use or misuse of this data
 
                        256 Winchester Magnum                         75gr    vmax
PR: WSR       CM: Win       TempF: 56       OAL: 1.920"
        PT          PW   Vel   SD   GS 
BnchMrk 15.0 1576.8 40.0 1.83
  16.0 1741.0 45.4 1.92
  17.0 1908.1 35.9 2.1
  18.0 2067.1 26.5 2.6
  19.0 2204.6 12.5 .84
 
                        256 Winchester Magnum                         75gr    vmax
PR: WSR       CM: Win       TempF: 54       OAL: 1.920"
        PT          PW   Vel   SD   GS 
H322 16.0 1726.1 47.0 1.96
  17.0 1906.2 15.7 1.60
  18.0 2084.2 33.9 1.14
  19.0 2259.5 21.4 1.11
  20.0 2357.0 27.9 1.42
 
GMDR assumes NO liability for mishaps of any kind resulting from the use or misuse of this data
 
                        256 Winchester Magnum                         75gr    vmax
PR: WSR       CM: Win       TempF: 50       OAL: 1.920"
        PT          PW   Vel   SD   GS 
H4198 12.0 1371.4 28.7 2.2
  13.0 1579.8 34.0 1.46
  14.0 1775.4 43.1 1.37
  15.0 1980.3 48.4 2.1
  16.0 2119.6 48.0 1.49
 
                        256 Winchester Magnum                         75gr    vmax
PR: WSR       CM: Win       TempF: 56       OAL: 1.920"
        PT          PW   Vel   SD   GS 
RL10 15.0 1776.0 44.8 1.72
  16.0 1957.1 30.0 2.9
  17.0 2075.2 20.7 1.80
  18.0 2231.5 17.4 1.88
  19.0 2364.3 15.2 1.35
 
GMDR assumes NO liability for mishaps of any kind resulting from the use or misuse of this data
 
                        256 Winchester Magnum                         75gr    vmax
PR: WSR       CM: Win       TempF: 56       OAL: 1.920"
        PT          PW   Vel   SD   GS 
RL7 13.0 1516.2 44.3 1.60
  14.0 1703.8 67.9 1.57
  15.0 1879.4 50.8 1.44
  16.0 2076.1 49.6 2.6
  17.0 2275.2 35.2 1.89
 
                        256 Winchester Magnum                         75gr    vmax
PR: WSR       CM: Win       TempF: 54       OAL: 1.920"
        PT          PW   Vel   SD   GS 
VVn120 11.0 1423.3 32.8 1.56
  12.0 1585.1 31.9 1.84
  13.0 1776.7 58.4 2.1
  14.0 1941.8 48.1 2.0
  15.0 2117.7 36.9 2.1
 
GMDR assumes NO liability for mishaps of any kind resulting from the use or misuse of this data
 
                        256 Winchester Magnum                         75gr    vmax
PR: WSR       CM: Win       TempF: 56       OAL: 1.920"
        PT          PW   Vel   SD   GS 
VVn130 13.0 1526.5 38.4 1.35
  14.0 1741.0 41.7 1.63
  15.0 1889.2 38.2 1.74
  16.0 1989.1 33.4 2.2
  17.0 2164.4 32.3 1.85
 
                        256 Winchester Magnum                         75gr    vmax
PR: WSR       CM: Win       TempF: 50       OAL: 1.920"
        PT          PW   Vel   SD   GS 
VVn133 15.0 1585.1 47.2 1.93
  16.0 1778.1 49.2 1.42
  17.0 1935.0 38.2 2.3
  18.0 2113.9 25.1 1.48
  19.0 2248.4 44.1 2.0
 
GMDR assumes NO liability for mishaps of any kind resulting from the use or misuse of this data
 

Group Size vs Velocity Plot for the 75gr Hornady Vmax
 
Group Size graph for 256 Win Mag with 75gr Hornady Vmax

 

Graph produced by "GMDR.Load"