SAAMI Accepts Two New Cartridges: 28-Gauge 3″ & 21 Sharp

The Sporting Arms and Ammunition Manufacturers’ Institute, Inc., [SAAMI] has accepted two new cartridges into standardization — one shotshell and one rimfire cartridge. Since WWI, SAAMI and its predecessors have worked to standardize cartridges and modernize ammunition, helping the organization develop into what it is today. The new cartridges join a long line of loads that have been standardized for safety, reliability, and ultimately the interchangeability between firearms and ammunition.

The company behind the two new SAAMI Standards is Olin Winchester. For those who might not know, like I didn’t, Olin Winchester is the parent company of Winchester Ammunition. Olin picked up Winchester during the 1930s when the company folded under the pressure of the Great Depression and has been producing ammunition under the Olin Winchester name since. On to the new Standards!

SAAMI Standards accepts 21 Sharp
The Sporting Arms and Ammunition Manufacturers’ Institute, Inc., (SAAMI) has accepted two new cartridges: a 28-Gauge 3″ shotshell and a 21 Sharp rimfire cartridge. Since 1926 SAAMI has been working to standardize the industry for safety and accuracy in the production of parts and components. [Photo credit: SAAMI]
The first of the new standards accepted by SAAMI is the 28-Gauge 3” shotshell. This load was first introduced by Olin Winchester with three different loadings: a 1-ounce lead shot capable of traveling at a velocity of 1,200 fps, a ¾-ounce non-lead shot capable of traveling at a velocity of 1,350 fps, and a 1-ounce non-lead shot capable of traveling at a velocity of 1,300 fps. All three of these loads have a Maximum Average Pressure of 14,000 psi.

The second accepted cartridge that was accepted by SAAMI is the 21 Sharp rimfire cartridge. This load was introduced, again, by Olin Winchester and has a 25-grain bullet capable of traveling at a velocity of 1,725 fps. The load has a Maximum Average Pressure of 24,000 psi.

Both the loads join the SAAMI catalog and include a wealth of knowledge to help standardize the round between firearms, ammunition, and components. Available with the cartridges’ acceptance are the technical drawings and data required for accurate production.

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