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The 2008 Vihtavuori reloading guide states that, when loaded with heavy .30 caliber bullets and fired out of a 690 mm (27 in) barrel, the .300 Lapua Magnum has lower muzzle energy compared to the .338 Lapua Magnum.
Source(s): Vihtavuori Powder N570 Lapua (690 mm; 27.15 inches) barrel [1] [2] [3] The .338 Lapua Magnum (8.6×70mm or 8.58×70mm) is a Finnish rimless, bottlenecked, centerfire rifle cartridge . It was developed during the 1980s as a high-powered, long-range cartridge for military snipers .
However, RWS did not tool up in time to produce the .460 Weatherby Magnum cartridge and in the end only produced substandard .300 Weatherby ammunition before production once again moved to Norma. [6] DuPont at one time shipped DuPont No. 4350 powder to Norma Projektilfabrik for the reloading of Weatherby ammunition.
Whilst staying within the 440 MPa C.I.P. limit an 8×68mm S rifle with a 650 mm (25.59 in) long barrel and appropriate modern gun propellants (Vihtavuori N560) can be handloaded to propel a 12.96 gram (200 gr) 8 mm bullet like the Sierra MatchKing to a muzzle velocity of 927 m/s (3042 ft/s).
Components of a modern bottleneck rifle cartridge. Top-to-bottom: Copper-jacketed bullet, smokeless powder granules, rimless brass case, Boxer primer.. Handloading, or reloading, is the practice of making firearm cartridges by manually assembling the individual components (metallic/polymer case, primer, propellant and projectile), rather than purchasing mass-assembled, factory-loaded ...
In 1968 Günter Frères developed the parent case, the rimmed 5.6×50mmR Magnum (designated 5,6 x 50 R Mag. by the C.I.P. According to the official C.I.P ruling, the rimless 5.6×50mm Magnum can handle up to 380.00 MPa (55,114 psi) P max piezo pressure, which is 40.00 MPa (5,802 psi) more than the rimmed parent case developed four years prior.
The .40 S&W (10.2×22mm) is a rimless pistol cartridge developed jointly by American firearms manufacturers Smith & Wesson and Winchester in 1990. [3] The .40 S&W was developed as a law enforcement cartridge designed to duplicate performance of the Federal Bureau of Investigation's (FBI) reduced-velocity 10mm Auto cartridge which could be retrofitted into medium-frame (9 mm size) semi ...
The .416 Barrett (10.4×83mm), [1] centerfire rifle cartridge is a proprietary bottlenecked centrefire rifle cartridge designed in 2005. It is an alternative to the large-caliber .50 BMG in long-range high-power rifles.