Load data for .308 Norma Mag. + 180gr Speer Grand Slam

606 suitable loads across 100 powder(s) for cartridge .308 Norma Mag. with 180gr Speer Grand Slam bullet.

The most recommended powders for this combination are ReloadSwiss RS 70, Alliant Reloder-26 and Alliant Reloder-16.

Based on C.I.P., the max. allowed case length is 2.559 in / 65.00 mm, the max. cartridge length is 3.346 in / 85.00 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.

Based on C.I.P., the max. allowed case length is 2.559 in / 65.00 mm, the max. cartridge length is 3.346 in / 85.00 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.

Load Specifications

ImperialMetric

Bullet:.308 | 180gr | Grand Slam

Cartridge:.308 Norma Mag. load data

Case Length (L3):2.559" | 65.0 mm

Cartridge Length (COL/L6):•••

Seated Depth:0.494" | 12.5 mm

Case Capacity:86.5 gow | 5.61 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:1:15.0

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Community Loads for .308 Norma Mag. + 180gr 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)

63.0 gr	3.225"	—	2491 fps	•••

59.0 gr	3.225"	—	2709 fps	•••
63.0 gr	3.225"	—	2858 fps	•••

•••	3.225"	—	2766 fps	•••

•••	3.225"	—	2867 fps	•••

•••	3.225"	—	2592 fps	•••
•••	3.225"	—	2748 fps	•••

•••	3.225"	—	2763 fps	•••
•••	3.225"	—	2710 fps	•••
•••	3.225"	—	2877 fps	•••

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