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The eighth edition of Cartridges of the World has a listing in the entry for 9mm Mauser using a 125 gr bullet with a heavier charge of Blue Dot powder than is normally listed as the maximum for 124 gr jacketed bullets in the .38 Super. Using old loading data using modern powders may result in more powerful loads than is intended.
Competitors in the late 1980s and early 1990s who were using the 9×25mm Dillon used the additional powder available over .38 Super to produce more gas in the compensator, or muzzle brake, to make pistols shoot with as little muzzle rise as possible to allow faster follow-up shots on target. A muzzle brake works by diverting gases ...
9mm Major is a wildcat cartridge of the 9mm Luger specifically for competition pistols designed to handle very high pressure. It is used in practical shooting competitions like International Practical Shooting Confederation (IPSC) and United States Practical Shooting Association (USPSA) to achieve a "Major" power factor, which earns more points for hits in specific zones on paper targets ...
Generally, the supplier of the barrel or dies will also provide the buyer with basic reloading data, giving a variety of powders, charge weights, and bullet weights that can be used for developing loads. Handloaders use the data to develop a load by starting with minimum loads and carefully working up. [citation needed]
Caliber 9mm P.A. includes various blank, gas or rubber ammunitions made for different use. 9mm P.A. Blank has also been used for theatrical purposes, including as a modification to muzzle-loading firearms, allowing early-modern muskets and the like to be fired on-stage without the actors learning the complex steps of loading with loose powder. [1]
Speer Gold Dot 124gr 9mm+P in SIG P226 magazines. Overpressure ammunition, commonly designated as +P or +P+ (pronounced Plus-P or Plus-P-Plus), is small arms ammunition that has been loaded to produce a higher internal pressure when fired than is standard for ammunition of its caliber (see internal ballistics), but less than the pressures generated by a proof round.
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The "Tround" ("Triangular Round") was a unique type of cartridge designed in 1958 by David Dardick, for use in specially designed Dardick 1100 and Dardick 1500 open-chamber firearms. As their name suggests, Trounds were triangular in cross-section and were made of plastic or aluminum, with the cartridge completely encasing the powder and ...