7mm STW (Shooting Times Westerner) Ammo
GunCritic Score
50%
Critic Rating
0 Reviews
50%
User Rating
0 Reviews
MSRP:$22.99
Used Price:
$20.69
Sale Price:
$22.99
Ammo Stats
Average Fps
3177 fps
Average Energy
3587 ft-lbf
Recoil
2.31 N
Ballistic Coefficient
0.56
Sectional Density
0.28 lb/in²
Average Gr
160 gr
Pwdr Chrg Wght
77.5 gr
Pwdr Chrg Vel
3333 fps
Range
500 yd
Muzzle Velocity
3200 fps
From$22.99
See DealThe 7mm Shooting Times Westerner (STW) was designed in 1979 by Layne Simpson as a wildcat cartridge and produced for the commercial market starting in 1989. The 7mm STW is based off the parent case 8mm Remington Magnum with a narrowed neck to fit a .284 inch bullet on a .315 inch neck. It has a large rifle magnum primer and a case length of 2.850 inches with overall length of 3.60 inches. The ballistic performances based off five grain types for
...
the 7mm STW on a 26 inch test barrel for muzzle velocity are 3,384 ft/s (120 gr), 3,268 ft/s (140 gr), 3,233 ft/s (150 gr), 3,177 ft/s (160 gr), and 3,047 ft/s (175 gr). The 7mm STW was first cartridge named for a gun magazine (Shooting Times Magazine) and Layne Simpson was the editor of STM at the time 1979.
Hand loading brass is available for the 7mm STW in a variety of loads. The muzzle velocity for performances are 3,200 ft/s (160 gr Spitzer w/69.0 grains of RL22 powder), and 3,121 ft/s (160 gr Spitzer w/73.0 grains of RL22 powder). The drop-off in trajectory and wound penetration occurs at approximately 335 yards distance. The 7mm STW is used by hunters for medium sized game and can also take down large sized game depending on the grain size bullet used.7mm STW (Shooting Times Westerner) For Sale
7mm STW (Shooting Times Westerner) Ballistics Performance
| Distance (yard) | Elevation (in) | Energy (fps) | Velocity (ft/lb) |
| 0 | 0.00 | 687.81 | 1400.00 |
| 10 | -0.24 | 687.81 | 1400.00 |
| 20 | -0.97 | 687.81 | 1400.00 |
| 30 | -2.17 | 687.81 | 1400.00 |
| 50 | -3.86 | 687.81 | 1400.00 |
| 60 | -6.04 | 687.81 | 1400.00 |
| 70 | -8.69 | 687.81 | 1400.00 |
| 90 | -11.83 | 687.81 | 1400.00 |
| 100 | -15.45 | 687.81 | 1400.00 |
| 110 | -19.56 | 687.81 | 1400.00 |
| Distance (yards) | 0 | 10 | 20 | 30 | 50 | 60 | 70 | 90 | 100 | 110 |
| Elevation (in) | 0.00 | -0.24 | -0.97 | -2.17 | -3.86 | -6.04 | -8.69 | -11.83 | -15.45 | -19.56 |
| Energy (fps) | 687.81 | 687.81 | 687.81 | 687.81 | 687.81 | 687.81 | 687.81 | 687.81 | 687.81 | 687.81 |
| Velocity (ft/lb) | 1400.00 | 1400.00 | 1400.00 | 1400.00 | 1400.00 | 1400.00 | 1400.00 | 1400.00 | 1400.00 | 1400.00 |
GunCritic Score
Ammo Stats
Average Fps
3177 fps
Average Energy
3587 ft-lbf
Recoil
2.31 N
Ballistic Coefficient
0.56
Sectional Density
0.28 lb/in²
Average Gr
160 gr
Pwdr Chrg Wght
77.5 gr
Pwdr Chrg Vel
3333 fps
Range
500 yd
Muzzle Velocity
3200 fps
Muzzle Energy
4940 J
Bullet Drop
0.01 in
Wind Drift
0.01 in
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7mm STW (Shooting Times Westerner) Specifications
Category
Caliber
7mm STW (Shooting Times Westerner)
Gun Types
Rifle
Case Types
Belted, Bottlenecked
Height
2.85
Average Grain
150
Case Material
Brass
Rim Type
Belted
Bullet Types
Soft Point,Jacketed Hollow Point,Full Metal Jacket
Primer Type
Large Rifle
Bullet Diameter
0.289 in
Land Diameter
0.283 in
Neck Diameter
0.310 in
Base Diameter
0.375 in
Rim Diameter
0.411 in
Rim Thickness
0.053 in
Case Length
72 in
Oal Cartridge Length
85 in
Bullet Weight
160 gr
7mm STW (Shooting Times Westerner) Comparisons
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