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Necking a .45 ACP to .40 caliber was nothing new. Before the public debut of the .40 S&W, Charles Petty, a well-known and respected writer, had already ventured into the bottleneck arena. His cartridge, called the "10mm Centaur", was based on a .45 ACP case necked to .40 caliber using 10 mm dies.
The 10mm Auto (also known as the 10×25mm, official C.I.P. nomenclature: 10 mm Auto, [7] official SAAMI nomenclature: 10mm Automatic) [8] is a powerful and versatile semi-automatic pistol cartridge introduced in 1983. Its design was adopted and later produced by ammunition manufacturer FFV Norma AB of Åmotfors, Sweden. [12]
Name (mm/in) Bullet diameter Case type Case length Rim Base Shoulder Neck OAL .40 S&W: 10.16 (.400) Rimless straight walled: 21.59 (.850) 10.77 (.424) 10.74 (.423)
338 Spectre : Uses 10mm Magnum pistol cases with a 6.8 SPC bolt-face. A shoulder is formed, and the case is lightly trimmed to length, and the neck is sized to .338, down from 0.401". The 10mm rim is 0.424" (10.8mm) in diameter, and the SPC rim diameter is 0.422" (10.7mm). The .338 caliber bullets are available in weights between 200gr-250gr.
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 ...
As Gun & Ammo wrote, The .400 Cor-Bon is one of the more useful of the current crop of .45 ACP offspring. There are faster rounds, but the .400 Cor-Bon is simply easy to get along with. You don't need extra-heavy springs or tricked-out guns for this round -- just drop a .400 Cor-Bon barrel in your favorite .45 and you are good to go. [5]
The .224 Boz began as a 10mm Auto case necked down to .223 in (5.7 mm). Original trials were successful, with this round firing a 50 gr (3.2 g) projectile chronographed at over 2,500 ft/s (760 m/s). [3]
Barnaul began a process of retooling in 2009 [6] to produce a new line of higher-grade ammunition to compete in the American and European markets. The first CENTAUR brand ammunition was produced in 2011. [6] BARNAUL series Barnaul Gold ammunition cartridges, with brass cases. Currently comes in 5.56×45mm NATO and 9×19mm Parabellum.