Load data for .257 Roberts + 100gr Barnes TSX BT

414 suitable loads across 75 powder(s) for cartridge .257 Roberts with 100gr Barnes TSX BT bullet.

The most recommended powders for this combination are ReloadSwiss RS 60, ReloadSwiss RS 70 and Alliant Reloder-17.

Based on C.I.P., the max. allowed case length is 2.233 in / 56.72 mm, the max. cartridge length is 2.775 in / 70.49 mm, and the max. allowed pressure is 51,488 PSI / 3,550 bar.

Based on C.I.P., the max. allowed case length is 2.233 in / 56.72 mm, the max. cartridge length is 2.775 in / 70.49 mm, and the max. allowed pressure is 51,488 PSI / 3,550 bar.

Load Specifications

ImperialMetric

Bullet:.257 | 100gr | TSX BT

Cartridge:.257 Roberts load data

Case Length (L3):2.233" | 56.7 mm

Cartridge Length (COL/L6):•••

Seated Depth:0.555" | 14.1 mm

Case Capacity:58 gow | 3.76 cm³

Primer Size:Large Rifle (LR)

Max. Pressure (C.I.P.):51,488 psi | 3,550 bar

Barrel Length:24.0" | 610 mm

Min. Twist Rate:1:10.0

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Community Loads for .257 Roberts + 100gr Barnes TSX BT

Real loads for this combination shared by our community. Charge weights are only fully visible with an active Pro licence.

Charge (gr)	C.O.L.	Barrel Length	Velocity (fps)	Pressure (psi)

39.0 gr	2.760"	24.0"	2721 fps	•••
40.0 gr	2.780"	24.0"	2775 fps	•••
41.0 gr	2.760"	24.0"	2826 fps	•••

•••	2.760"	24.0"	2904 fps	•••

•••	2.760"	24.0"	2655 fps	•••
•••	2.760"	24.0"	2977 fps	•••

•••	2.780"	24.0"	3052 fps	•••

•••	2.780"	24.0"	2909 fps	•••

•••	2.780"	24.0"	2890 fps	•••

•••	2.780"	24.0"	2700 fps	•••
•••	2.780"	24.0"	2932 fps	•••

•••	2.780"	24.0"	2761 fps	•••
•••	2.780"	24.0"	3013 fps	•••

Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.