copper crusher pressure in this article would translate in ≈ 447.50 MPa (64,904 psi) C.I.P. .338 Lapua Magnum maximum C.I.P. This allows you to access it quickly and keep your rifle clean at all times. The sole purpose of this site is to provide an online community for those who wish to interact with other Savage firearm enthusiasts. To further complicate matters the mentioned 56,000 CUP C.I.P.
The common rifling twist rate for this cartridge is 254 mm (1 in 10 in), 6 grooves, Ø lands = 8.38 mm, Ø grooves = 8.58 mm, land width = 2.79 mm and the primer type is large rifle magnum. regulated countries every rifle cartridge combo has to be proofed at 125% of this maximum C.I.P.
This was achieved by coupling a sensible case volume (7.40 ml) to bore area (56.86 mm2/0.5686 cm2) ratio (13.01 Oratio) with ample space for loading relatively long slender projectiles that can provide good aerodynamic efficiency and external ballistic performance for the projectile diameter.
Americans would define the shoulder angle at alpha/2 ≈ 20 degrees. [74] The LM-107 was hoped to boost the ballistic performance of the LM-105 by achieving an increase in supersonic range. [76] The use of the .338 cartridge case with its capability to operate at high chamber pressures resulted in magnum case capable of producing high muzzle velocities. The .338 Lapua Magnum is capable of taking down any game animal, though its suitability for some dangerous game (Cape buffalo, hippopotamus, white rhinoceros, and elephant) is arguable, unless accompanied by a larger "backup" calibre: "There is a huge difference between calibres that will kill an elephant and those that can be relied upon to stop one. Such commercially non-existent cartridges are termed "wildcats". The 7.62 UKM has a 5.84 ml (90 grains H2O) cartridge case capacity.
[72] A real world average G1 BC of ≈ 0.83 or a G7 BC of ≈ 0.42 is commonly adopted by the users of this bullet, for making long range trajectory predictions using ballistics calculators.
The common 254 mm (1:10 inch) rifling twist rate also has to be tightened to stabilize very long projectiles. The .416 Rigby is an English big game cartridge that was designed in 1911 to accommodate 325 MPa (47,137 psi) pressures.
You should also think about whether you will be using the rifle for target shooting only, hunting, tactical use, sniping, or a mixture of these applications. The laminate stock has a classic look, and the bolt-action mechanism works very smoothly. The .338 Lapua Magnum case is also used as the parent case for a host of modified variants that are not officially registered with or sanctioned by C.I.P. The large boltface combined with the high 470 MPa (68,000 PSI) maximum pressure makes that the .300 Lapua Magnum should only be chambered in rifles that are capable of handling such large and fierce cartridges and thus high bolt thrust safely.
Required fields are marked *, Top 5 Best .338 Lapua Rifles On The Market 2020 Reviews. Loaded with more aerodynamic very-low-drag bullets such as the traditionally lead cored 19.44 g (300.0 gr) Lapua Scenar GB528 VLD bullet (G1 BC = 0.736) or the Lost River Ballistics J40 .338 17.5 gram (270 gr) CNC manufactured mono-metal bullet (G1 BC = 0.871) the long-range performance and supersonic range of .338 Lapua Magnum rifles can be improved. It has a 26-inch barrel and uses the .338 Lapua cartridges to full effect.