Load data for .270 WSM + 150gr Speer Boat-Tail

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 | 150gr | Boat-Tail

Cartridge:.270 WSM load data

Case Length (L3):2.090" | 53.1 mm

Cartridge Length (COL/L6):•••

Seated Depth:0.598" | 15.2 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:1:11.5

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Community Loads for .270 WSM + 150gr Speer Boat-Tail

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)

56.0 gr	2.700"	—	2689 fps	•••
60.0 gr	2.700"	—	2840 fps	•••

56.5 gr	2.700"	—	2939 fps	•••

•••	2.700"	—	2788 fps	•••
•••	2.700"	—	2948 fps	•••

•••	2.700"	—	2764 fps	•••
•••	2.700"	—	2927 fps	•••

•••	2.700"	—	2784 fps	•••
•••	2.700"	24.0"	2915 fps	•••
•••	2.700"	—	3006 fps	•••

•••	2.700"	—	2806 fps	•••
•••	2.700"	—	2964 fps	•••

•••	2.700"	—	2789 fps	•••
•••	2.700"	—	3051 fps	•••

•••	2.700"	—	2749 fps	•••
•••	2.700"	—	3032 fps	•••

•••	2.700"	—	2692 fps	•••
•••	2.700"	—	2858 fps	•••

•••	2.700"	—	2805 fps	•••

•••	2.700"	—	2789 fps	•••
•••	2.700"	—	2938 fps	•••

•••	2.700"	—	2800 fps	•••

•••	2.700"	—	2800 fps	•••

•••	2.700"	—	2889 fps	•••
•••	2.700"	—	2790 fps	•••
•••	2.700"	—	2962 fps	•••

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