257 Roberts Ammo
GunCritic Score
50%
Critic Rating
0 Reviews
50%
User Rating
0 Reviews
MSRP:$8.99
Used Price:
$36.89
Sale Price:
$40.99
Ammo Stats
Average Fps
2840 fps
Average Energy
2093 ft-lbf
Recoil
1.47 N
Ballistic Coefficient
0.39
Sectional Density
0.25 lb/in²
Average Gr
117 gr
Pwdr Chrg Wght
50 gr
Range
600 yd
Muzzle Velocity
2780 fps
Muzzle Energy
2730 J
From$8.99
See Deal257 Roberts Ammo The 257 Roberts Ammo is one of those quarter bore cartridges that isn’t as popular as it should be. Surprisingly, many hunters today do not know the 257 Roberts Ammo. This is because Remington Arms introduced it in 1930. However, the design has been available since the 1920s. It was designed by Ned Roberts, who is an American hunter and a ballistician. He found out the 257 Robert Ammo worked perfectly with a 7x57mm Mauser Case. Although Remington wanted
...
to introduce it as the 25 Roberts Ammo, Captain E.C. Crossman advised against it because the 25 Roberts was already in production. In addition, the chambers of both cartridges differ extensively, which is why Remington renamed it to 257 Roberts Ammo.
The 257 Roberts Ammo is an excellent dual hunting cartridge that you can use for varmints. It sends a 75-grain bullet out at a muzzle velocity of 3,400 feet per second. It is also quite popular today as a medium-powered hunting cartridge. This is because it strikes an impressive balance between a flat trajectory and low recoil.
During testing, the 257 Roberts ammo sent out a 117-grain bullet at a muzzle velocity of 2,650 fps while also packing a 1,824-foot-pound punch. When tested at 500 yards, the muzzle velocity remained at 1,199 fps and 373 ft-lbs of energy. As a result, the 257 Roberts Ammo is highly recommended by the manufacturer for hunting big games like deer.
The accuracy, effectiveness, and power it offers downrange recoils moderate to mild on the shooter’s shoulder. It is ideal if you want more bullet frontal mass from your cartridge but without a high recoil..257 Roberts For Sale
.257 Roberts Ballistics Performance
| Distance (yard) | Elevation (in) | Energy (fps) | Velocity (ft/lb) |
| 0 | 0.00 | 245.52 | 2550.00 |
| 30 | -0.85 | 245.52 | 2550.00 |
| 60 | -3.42 | 245.52 | 2550.00 |
| 90 | -7.69 | 245.52 | 2550.00 |
| 130 | -13.67 | 245.52 | 2550.00 |
| 160 | -21.35 | 245.52 | 2550.00 |
| 190 | -30.75 | 245.52 | 2550.00 |
| 230 | -41.85 | 245.52 | 2550.00 |
| 260 | -54.66 | 245.52 | 2550.00 |
| 290 | -69.18 | 245.52 | 2550.00 |
| Distance (yards) | 0 | 30 | 60 | 90 | 130 | 160 | 190 | 230 | 260 | 290 |
| Elevation (in) | 0.00 | -0.85 | -3.42 | -7.69 | -13.67 | -21.35 | -30.75 | -41.85 | -54.66 | -69.18 |
| Energy (fps) | 245.52 | 245.52 | 245.52 | 245.52 | 245.52 | 245.52 | 245.52 | 245.52 | 245.52 | 245.52 |
| Velocity (ft/lb) | 2550.00 | 2550.00 | 2550.00 | 2550.00 | 2550.00 | 2550.00 | 2550.00 | 2550.00 | 2550.00 | 2550.00 |
GunCritic Score
Ammo Stats
Average Fps
2840 fps
Average Energy
2093 ft-lbf
Recoil
1.47 N
Ballistic Coefficient
0.39
Sectional Density
0.25 lb/in²
Average Gr
117 gr
Pwdr Chrg Wght
50 gr
Range
600 yd
Muzzle Velocity
2780 fps
Muzzle Energy
2730 J
Bullet Drop
0.01 in
Wind Drift
0.01 in
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.257 Roberts Specifications
Category
Caliber
.257 Roberts
Gun Types
Lever-action Rifles, Single-shot Rifles, Bolt-action Rifles
Case Types
Rimless, Bottleneck
Height
2.23
Average Grain
118
Case Material
Brass
Rim Type
Rimless
Bullet Types
Soft Point,Jacketed Hollow Point,Full Metal Jacket
Primer Type
Large Rifle
Bullet Diameter
0.271 in
Land Diameter
0.262 in
Neck Diameter
0.290 in
Base Diameter
0.340 in
Rim Diameter
0.364 in
Rim Thickness
0.045 in
Case Length
51 in
Oal Cartridge Length
65 in
Bullet Weight
117 gr
.257 Roberts Comparisons
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