6.5×25mm CBJ

Named after CBJ Tech AB's founder and president Carl Bertil Johansson,{{cite web|url=http://www.cbjtech.com/about-us/|title=CBJ Tech – About Us|access-date=2020-11-07}} the 6.5×25mm CBJ has the same functional dimensions as the 9×19mm Parabellum and was designed to produce the same recoil and pressures to allow most 9 mm caliber weapons to be converted to 6.5×25mm CBJ with a simple barrel change. Also, because the 6.5×25mm CBJ has the same overall dimensions as the 9×19mm Parabellum, it can be used in the same magazines. The primary loading of the standard ball round fires a saboted {{convert|2|g|gr|abbr=on}}, {{convert|4|mm|abbr=on}} diameter tungsten kinetic penetrator, weighing a total of {{convert|2.5|g|gr|abbr=on}} with the sabot. It has a muzzle velocity of {{convert|730|m/s|ft/s|abbr=on}} from a {{convert|120|mm|in|abbr=on}} barrel with a muzzle energy of {{convert|533|J|ftlb|abbr=on}}. From a {{convert|300|mm|in|abbr=on}} barrel, it has a muzzle velocity of {{convert|900|m/s|ft/s|abbr=on}} with a muzzle energy of {{convert|810|J|ftlb|abbr=on}}, and has good armor penetration out to {{cvt|400|m|yd}}. The standard saboted tungsten ball, when fired from a {{convert|300|mm|abbr=on}} length barrel, can pierce {{cvt|9|mm}} of armor plate and leave a {{convert|6|mm|abbr=on}} diameter entry hole.[http://sadefensejournal.com/wp/?p=625 Brugger & Thomet’s MP9 in 6.5×25 CBJ] – SAdefensejournal.com, 14 October 2011 Against the same plate, both 5.56×45mm NATO SS109 and 7.62×51mm NATO M80 failed to penetrate.[https://web.archive.org/web/20121025121720/http://www.quarry.nildram.co.uk/PDWs.htm Where Next For PDWs?] – /www.quarry.nildram.co.uk From a {{convert|300|mm|abbr=on}} barrel, the tungsten saboted round has the same trajectory as a 5.56 NATO from an M4 carbine and a velocity of {{cvt|578|m/s}} at {{cvt|300|m|yd|0}}, which will penetrate CRISAT armor. The 6.5×25mm CBJ brass-jacketed ball rounds are heavier than similar rounds in the FN 5.7×28mm and HK 4.6×30mm.

There are several other 6.5×25mm CBJ bullets other than the sabot in full-caliber. Military rounds include a "spoon-tip" loading that increases the chance of the bullet to cavitate on impact and a cheap training version with a different core material. Police rounds include a {{convert|2.5|g|gr|abbr=on}} high-energy-transfer round that can penetrate CRISAT armor up to {{convert|50|m|yd|abbr=on}}, and a frangible round for training and situations requiring minimal barrier penetration. A subsonic armor-piercing round weighs {{convert|8|g|gr|abbr=on}} for use with a suppressor.

• List of cartridges by caliber
• List of rifle cartridges
• 5.7×28mm
• 4.6×30mm
• 6 mm caliber

{{Reflist}}

• [http://gotavapen.se/gota/cbj/cbj_syst.htm A new weapon system from Sweden]

{{More citations needed|date=October 2007}}

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{{Personal defense weapons}}

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Category:Pistol and rifle cartridges