Dual Stack Magazine

A magazine for cartridges for use with a firearm, the cartridges defining a cartridge rim, the magazine comprising:

• a housing defining a front side, rear side, top side and bottom side, wherein when the cartridges are loaded into the top side of the housing a bullet side of the cartridge faces the front side of the housing;
• the housing forming opposing feed lips at the top side, the opposing feed lips extending toward each other to define a space between them which forms an entry point sized to permit the passing of a cartridge downwardly into the top side of the housing and without moving the cartridge from the front side toward the rear side;
• the feed lips are shaped to engage the cartridge after the cartridge passes the entry point, the feed lips hold the cartridge in place within the housing;
• a divider located within the housing and extending from the top side to the bottom side and from the front side to the rear side, wherein the divider divides the inserted cartridges into rows of stacked cartridges;
• the divider defining a first curved portion at the top side and a second curved portion at the bottom side, wherein the first curved portion has a greater curve than the curve of the second curved potion,
• the divider defining a cartridge rim engaging portion, wherein the cartridge rim engaging portion engages the cartridge rim after the cartridge is inserted into the housing, and
• wherein the cartridge rim engaging portion in combination with the first curved portion of the divider force the inserted cartridges in a direction toward the rear side of the housing as additional cartridges are inserted into the top side of the housing and between the feed lips, thereby preventing the individual rims of the stacked cartridges from interlocking with each other and getting jammed within the housing as one cartridge is stacked upon another cartridge.