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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.
Ammunition, also known as ammo, is the material fired, scattered, dropped, or detonated from any weapon or weapon system. [1] The term Ammunition includes both expendable weapons (e.g., bombs , missiles , grenades , land mines ), and the component parts of other weapons that create the effect on a target (e.g., bullets and warheads ).
Comparison of .223 Remington (left) and external propellant caseless 4.73×33mm Heckler & Koch G11 ammunition (right). Caseless ammunition ( CL ), [ 1 ] or caseless cartridge , is a configuration of weapon-cartridge that eliminates the cartridge case that typically holds the primer , propellant and projectile together as a unit.
The .32 H&R Magnum, also known as the .32 Magnum, is a rimmed cartridge designed for use in revolvers. It was developed and introduced in 1984 as a joint venture between Harrington & Richardson and Federal Premium Ammunition.
The use of the term dumdum for expanding bullets other than the early .303 designs is considered slang by most ammunition and ballistics sources. [15] [16] Manufacturers have many terms to describe the particular construction of the various types of expanding bullets, though most fall into the category of soft-point or hollow-point designs.
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JSP is a semi-jacketed round as the jacket does not extend to the tip Various hollow points: .45 Auto, .38 Special, .44 S&W Special, .44 Remington Magnum.45 ACP Federal HST 230gr hollow point cartridge, with two rounds of CCI Standard Velocity .22 LR for comparison purposes.40 S&W round, complete cartridge and expanded bullet A 9mm hollow point ...
The energy delivered by most 9mm loads allows for significant expansion and penetration with premium hollow-point bullets. Illinois State Police , border patrol , Federal Air Marshals , and United States Secret Service favored and used 115 gr (7.5 g) +P+ 9mm loads at 1,300 ft/s (400 m/s) for years with excellent results. [ 34 ]