Datos de recarga para 257 Roberts

Bullet Hornady SP 87 gr
Bullet weight 5.6 g / 87 gr
B.C 0.322
C.O.L 70.0 mm / 2.756
# 2530
Gunpowder Charge Weight Velocity m/s Velocity fps
Norma 204 Max 48.0
Min 46.0
988
930
3241
3051
Bullet Hornady SP 100 gr
Bullet weight 6.5 g / 100 gr
B.C 0.357
C.O.L 70.0 mm / 2.756
# 2540
Gunpowder Charge Weight Velocity m/s Velocity fps
Norma MRP Max 49.9
Min 47.0
923
864
3028
2835
Bullet Nosler Partition 100 gr
Bullet weight 6.5 g / 100 gr
B.C 0.377
C.O.L 70.0 mm / 2.756
# 16317
Gunpowder Charge Weight Velocity m/s Velocity fps
Norma MRP Max 49.9
Min 47.0
928
866
3045
2841
Bullet Nosler BST 100 gr
Bullet weight 6.5 g / 100 gr
B.C 0.393
C.O.L 70.0 mm / 2.756
# 25100
Gunpowder Charge Weight Velocity m/s Velocity fps
Norma MRP Max 0.0
Min 0.0
0
0
0
0
Bullet Nosler BST 115 gr
Bullet weight 7.5 g / 115 gr
B.C 0.453
C.O.L 70.2 mm / 2.764
# 25115
Gunpowder Charge Weight Velocity m/s Velocity fps
Norma MRP Max 47.6
Min 45.0
851
808
2792
2651
Bullet Hornady RN 117 gr
Bullet weight 7.6 g / 117 gr
B.C 0.243
C.O.L 70.0 mm / 2.756
# 2550
Gunpowder Charge Weight Velocity m/s Velocity fps
Norma MRP Max 47.7
Min 45.0
853
797
2799
2615
Bullet Nosler Partition 120 gr
Bullet weight 7.8 g / 120 gr
B.C 0.391
C.O.L 70.2 mm / 2.764
# 35643
Gunpowder Charge Weight Velocity m/s Velocity fps
Norma MRP Max 47.6
Min 45.0
849
799
2785
2622