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Stone Hart Manufacturing Company engages in the design, manufacture, and sale of small arms ammunition for the wholesale, governmental, and retail markets. Specializing in ammo for 9mm, 40S&ampampW, 45 ACP, .223 as well as 5.56x45 Nato.

Our 9mm and 45 ACP ammo is produced on AmmoLoad's full automatic industrial machines at a rate of 4000 rounds per hour. The 40 and 556 NATO is produced on Dillon Precision presses.

The company's founder, Mr. Adolfo Vivas, fulfilled his lifelong passion of loading ammunition when in 2008 he&ampnbspopened his own&ampnbspammo manufacturing facility. Mr. Vivas prides himself on his attention to detail and in selecting the highest quality components to make a superior product.