Links to technical data and drawings for the newly SAAMI accepted Cartridge and Chamber designs not yet included in SAAMI Standards are listed below. These drawings will be incorporated during the next revision of the relevant SAAMI Standard. Occasionally a dimensional correction may be made to an existing cartridge/chamber design.

2021年3月11日 · Here is a consolidate summary of all the rifle cartridges that are currently recognized by SAAMI. The purpose of this is to provide a quick glance of cartridge specs for the curious mind. The SAAMI Maximum Average Pressure (MAP) is listed in both the Copper Units of Pressure (CUP) and the Pounds per Square Inch (PSI).

The 5.56×45mm NATO (official NATO nomenclature 5.56 NATO, commonly pronounced "five-five-six") is a rimless bottlenecked centerfire intermediate cartridge family developed in the late 1970s in Belgium by FN Herstal. [5] . It consists of the SS109, L110, and SS111 cartridges.

However, due to the sizeable number of “wildcat” or non-military specification 5.56 chamber geometries in existence, SAAMI recommends that you consult the firearm owner’s manual or contact the firearm manufacturer for further guidance as to whether your firearm can safely shoot 223 Remington ammunition.

2013年1月16日 · 这是体育用武器和弹药制造商的研究所（SAMMI）制定的商业/民用/体育射击武器的行业标准。 在北约的5.56规范步枪的子弹停留的位置的长度是0.162英寸,几乎是民用223步枪的两倍。 当民用枪射击5.56北约军用子弹的时候，子弹上膛后子弹就会接触到膛线。 子弹的弹头过早地接触到膛线，在射击的时候火药气体无处宣泄导致枪膛中的压力过大，可能会炸膛。 反过来，使用军用枪械发射民用的223子弹，就没有危险。 子弹停留的位置的长度过长，子弹和膛线 …

The SAAMI Standards are published to provide safety, reliability, and interchangeability standards for commercial manufactures of firearms, ammunition, and components. SAAMI Z299.1 – 2018 – Voluntary Industry Performance Standards for Pressure and Velocity of Rimfire Sporting Ammunition for the Use of Commercial Manufacturers

2023年2月24日 · The .223 Remington chamber, known as SAAMI chamber, is allowed to have a shorter leade, and is only required to be proof tested to the lower SAAMI chamber pressure. To address these issues, various proprietary chambers exist, such as the Wylde chamber (Rock River Arms) [70] or the ArmaLite chamber, which are designed to handle both 5.56×45mm ...

2012年6月22日 · These SAAMI specifications for .223 Remington chamber dimensions allow for a range of minor differences between manufacturers. At the other end of the spectrum are 5.56mm NATO chambers, which will exhibit lower pressures …

TABLE OF CONTENTS – CARTRIDGE & CHAMBER DRAWINGS CENTERFIRE RIFLE DATE OF LATEST REVISION: 10/17/2009 PAGE 2 OF 4 Date Date Date Full Name Drawn Issued Revised

Source(s): NATO EPVAT testing, QuickLOAD, SAAMI, C.I.P. [1] The 5.56×45mm NATO (official NATO nomenclature 5.56 NATO) is a rifle cartridge developed in the United States and originally chambered in the M16 rifle. Under STANAG 4172, it is a standard cartridge for NATO forces as well as many non-NATO countries.[2]