.257 Roberts

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Caliber Description

Popular Load Recipes

Cost per Reloaded Round

Technical Specifications

Safety Standard / Application

C.I.P. / Rifle Caliber

Most Suitable Bullet Weights

68 - 126 Grains

Case Capacity / Average Charge

56 Grains of Water / 40.3 Grains

Average Muzzle Velocity / Energy

2923 fps / 1812 ft-lbf

Case Length / Max. C.O.L

2.233'' / 2.775''

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