Load data for .243 Win. + 100gr Sierra SP SemiSp

533 suitable loads across 89 powder(s) for cartridge .243 Win. with 100gr Sierra SP SemiSp bullet.

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

Based on C.I.P., the max. allowed case length is 2.045 in / 51.94 mm, the max. cartridge length is 2.710 in / 68.83 mm, and the max. allowed pressure is 60,191 PSI / 4,150 bar.

Load Specifications

ImperialMetric

Bullet:.243 | 100gr | SP SemiSp

Cartridge:.243 Win. load data

Case Length (L3):2.044" | 51.9 mm

Cartridge Length (COL/L6):•••

Seated Depth:0.424" | 10.8 mm

Case Capacity:54 gow | 3.50 cm³

Primer Size:Large Rifle (LR)

Max. Pressure (C.I.P.):60,191 psi | 4,150 bar

Barrel Length:24.0" | 610 mm

Min. Twist Rate:1:11.5

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Community Loads for .243 Win. + 100gr Sierra SP SemiSp

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)

37.0 gr	2.600"	—	2720 fps	•••
40.1 gr	2.669"	24.0"	2851 fps	•••

34.5 gr	2.600"	—	2731 fps	•••

•••	2.600"	—	2613 fps	•••

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