9×21mm maximum C.I.P. cartridge dimensions[1] All sizes in millimeters (mm). The common rifling twist rate for this cartridge is 254 mm (1 in 10 in), 4 grooves, Ø lands = 8.79 mm, Ø grooves = 9.03 mm, land width = 3.80 mm and the primer type is small pistol.

2022年9月22日 · To understand the differences (and similarities) between these two rounds, you need to know the history of the 9x21mm IMI. Essentially, the cartridge was engineered to give Europeans, living in countries where the 9mm Luger was banned, a cartridge that delivers the same performance as the 9x19mm.

Technical specifications of caliber9 x 21, popular powders, suitable bullets, and comprehensive load data for this caliber.

9 ×21mm Gyurza（Γюрза，俄语为“钝鼻毒蛇”）弹药是一种俄罗斯手枪弹药，是中央研究精密機械製造局为其SR-1 Vektor半自动手枪和SR-2 Veresk冲锋枪开发的子弹。 类型 手枪弹. 原产地 俄罗斯. 服役历史. 使用方 FSB，俄罗斯军队. 生产历程. 设计师 TsNIITochMash. 生产 1990 年代至今. 衍生型 SP-10 (7N29)、SP-11 (7N28)、SP-12、SP-13 (7BTZ) 规格. 子弹直径 9.05 毫米（0.356 英寸） 肩径 9.6 毫米（0.38 英寸） 底座直径 9.9 毫米（0.39 英寸） 轮辋直径 9.9 毫米（0.39 …

2024年3月21日 · 9X21 vs. 9X19. The main difference between these two bullets is the size. The 9X21 is going to be 2mm bigger than the other, which makes it a bit stronger on the field as well. Customers are more likely to get their hands on the 9X19 cartridge due to their common usage and popularity in America.

Size and Dimensions. The 9x19 cartridge, also known as 9mm Luger or 9mm Parabellum, is one of the most common handgun calibers in the world. It has a bullet diameter of 9mm and a case length of 19mm. On the other hand, the 9x21 cartridge has the same bullet diameter of 9mm but a slightly longer case length of 21mm.

The 9x21mm IMI features a bullet diameter of 9.01mm, a case length of 21.15mm, and generally uses a standard pressure of around 35,000 psi. It is popular for self-defense, sport shooting, and law enforcement purposes, particularly in Italy and Mexico.

2024年2月18日 · The caliber difference between 9×19 and 9×21 is that the 9×19 has a bullet diameter of 9mm and a case length of 19mm, while the 9×21 has a slightly longer case length of 21mm. What is the purpose of the different calibers?

Based on the 9x19mm Luger cartridge, the casing was lengthened from 19 mm to 21 mm. The bullet sits slightly deeper in the casing, which results in almost the same overall length as the 9x19mm Luger cartridge. While not physically interchangeable, the 9x21mm is the ballistic equal of the 9 mm Luger. Common cartridges used in modern handguns.

2011年4月26日 · The maximum length of 9x21 is barely longer than the maximum length of 9x19. (and I doubt factory ammo is that long) The frames and slides are the same as the 9x19 models. Despite some media reports, there were no AK-47s involved in the incident