Load data for .338 Lapua Mag. Ackley Improved + 305gr Peregrine Glider GRM
422 suitable loads across 72 powder(s) for cartridge .338 Lapua Mag. Ackley Improved with 305gr Peregrine Glider GRM bullet.
The most recommended powders for this combination are Hodgdon Retumbo, Vihtavuori N570 and ReloadSwiss RS 76.
Based on Wildcat, the max. allowed case length is 2.724 in / 69.20 mm, the max. cartridge length is 3.681 in / 93.50 mm, and the max. allowed pressure is 69,618 PSI / 4,800 bar.
Based on Wildcat, the max. allowed case length is 2.724 in / 69.20 mm, the max. cartridge length is 3.681 in / 93.50 mm, and the max. allowed pressure is 69,618 PSI / 4,800 bar.
Load Specifications
ImperialMetric
Bullet:.338 | 305gr | Glider GRM
Case Length (L3):2.724" | 69.2 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.919" | 23.3 mm
Case Capacity:124.89 gow | 8.09 cm³
Primer Size:Large Rifle Magnum (LRM)
Max. Pressure (Wildcat):69,618 psi | 4,800 bar
Barrel Length:27.0" | 686 mm
Min. Twist Rate:1:9.0
Get PRO license to unlock all data and calculators