Load data for .270 WSM + 130gr Speer Grand Slam

Based on C.I.P., the max. allowed case length is 2.100 in / 53.34 mm, the max. cartridge length is 2.860 in / 72.64 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.

Based on C.I.P., the max. allowed case length is 2.100 in / 53.34 mm, the max. cartridge length is 2.860 in / 72.64 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.

Load Specifications

ImperialMetric

Bullet:.277 | 130gr | Grand Slam

Cartridge:.270 WSM load data

Case Length (L3):2.090" | 53.1 mm

Cartridge Length (COL/L6):•••

Seated Depth:0.461" | 11.7 mm

Case Capacity:79.5 gow | 5.15 cm³

Primer Size:Large Rifle Magnum (LRM)

Max. Pressure (C.I.P.):63,817 psi | 4,400 bar

Barrel Length:24.0" | 610 mm

Min. Twist Rate:1:12.5

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Community Loads for .270 WSM + 130gr Speer Grand Slam

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)

62.0 gr	2.670"	—	2979 fps	•••
66.0 gr	2.670"	—	3140 fps	•••

56.5 gr	2.670"	—	3066 fps	•••

•••	2.670"	—	3216 fps	•••

•••	2.670"	—	3092 fps	•••

•••	2.670"	—	3017 fps	•••
•••	2.670"	—	3190 fps	•••

•••	2.670"	—	2969 fps	•••
•••	2.670"	—	3201 fps	•••

•••	2.670"	—	2961 fps	•••
•••	2.670"	—	3243 fps	•••

•••	2.670"	—	2937 fps	•••

•••	2.670"	—	2925 fps	•••
•••	2.670"	—	3094 fps	•••

•••	2.670"	—	2861 fps	•••
•••	2.670"	—	3032 fps	•••

•••	2.670"	—	2916 fps	•••
•••	2.670"	—	3079 fps	•••

•••	2.670"	—	3022 fps	•••

•••	2.670"	—	2939 fps	•••
•••	2.670"	—	3183 fps	•••

•••	2.670"	—	3082 fps	•••
•••	2.670"	—	2998 fps	•••
•••	2.670"	—	3181 fps	•••

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