SHELTON, Conn — The Sporting Arms and Ammunition Manufacturers’ Institute®, Inc., (SAAMI®) has announced the acceptance of a new shotshell and rimfire cartridge for SAAMI standardization. SAAMI is the organization at the forefront of promoting firearm safety by creating standards that ensure safety, reliability, and interchangeability of firearms, ammunition, and components.
28-Gauge 3″
The 28-Gauge 3″ was introduced by Olin Winchester with three loadings, all at a Maximum Average Pressure of 14,000 psi:
1-1/8 oz. lead shot traveling at a velocity of 1,200 fps
¾ oz. non-lead shot traveling at a velocity of 1,350 fps
1 oz. non-lead shot traveling at a velocity of 1,300 fps
21 Sharp
The 21 Sharp rimfire cartridge was introduced by Olin Winchester with a 25-grain bullet traveling at a velocity of 1,725 fps and a Maximum Average Pressure of 24,000 psi.
For further information on these new cartridges please visit https://saami.org/technical-information/cartridge-chamber-drawings/.
Amazing how even the 28 gauge can now join every other shot shell with a 3″ mag version. Oh wait! We still ignore the obvious 16 gauge step-child. Why is that?
Viola we have 7 lb. + 28 gauge guns. A step Backwards.