Load data for .257 Roberts + 115gr Nosler Ballistic Silver Tip

382 suitable loads across 70 powder(s) for cartridge .257 Roberts with 115gr Nosler Ballistic Silver Tip bullet.

The most recommended powders for this combination are Alliant Reloder-26, IMR 4350 and Alliant Reloder-16.

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 | 115gr | Ballistic Silver Tip

Cartridge:.257 Roberts load data

Case Length (L3):2.233" | 56.7 mm

Cartridge Length (COL/L6):•••

Seated Depth:0.698" | 17.7 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:1:9.5

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Community Loads for .257 Roberts + 115gr Nosler Ballistic Silver Tip

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)

38.0 gr	2.750"	24.0"	2693 fps	•••

36.0 gr	2.750"	24.0"	2412 fps	•••
38.0 gr	2.750"	24.0"	2531 fps	•••
•••	2.750"	24.0"	2653 fps	•••

•••	2.750"	24.0"	2572 fps	•••
•••	2.750"	24.0"	2695 fps	•••
•••	2.750"	24.0"	2817 fps	•••

•••	2.750"	24.0"	2687 fps	•••
•••	2.750"	24.0"	2804 fps	•••

•••	2.750"	24.0"	2558 fps	•••
•••	2.750"	24.0"	2681 fps	•••

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