The .277 Fury or 6.8×51mm Common Cartridge[4][5] (designated as the .277 SIG Fury by SAAMI) [1] is a centerfire rimless bottlenecked rifle cartridge announced by SIG Sauer in late 2019. [2]

SIG MCX-MR（中距离）是西格绍尔原本计划参加美国陆军的紧凑型半自动狙击系统（CSASS）计划。 它采用.227 FURY（6.8×51毫米）SIG Hybrid钢铜混合弹壳弹药及采用SR-25规格弹匣。 加入了双边枪机释放钮，而可翻转T型拉机柄改为一般MCX的双边拉机柄。 可更换枪管使用7.62×51毫米北约口径步枪子弹，并且设有两段（NORMAL-ADVERSE）可调导气座，SIG Sauer在NGSW系统中采用供电导轨以安装配件。 XM5. SIG MCX SPEAR参加了次世代班用 …

2022年2月17日 · SAAMI approved a maximum chamber pressure of 80,000psi for the new .277 SIG Fury. First unveiled in late 2019, the cartridge is the result of SIG Sauer's participation in the Next Generation Squad Weapons (NGSW) military procurement solicitations.

2 天之前 · A powerful new round and a couple of cool new weapons to shoot it. What could be better? What’s all the hype about the cartridge, known in civilian shooting circles as the .227 Sig Fury, and how did it come into being?

在SIG正式中标NGSW项目之前，就已经开始向民用市场提供半自动型的MCX-SPEAR，不过民用型配套的枪弹是6.8 × 51mm混合弹的民用版本， 称为.277 Fury的子弹。

2022年5月17日 · In the news off and on for over 5 years, the hammer has finally dropped and the US Army as choisen Sig Sauer’s .277 FURY as their new cartridge for the NGSW program! What does this mean for the venerable M4? Is the AR-15 dead? Are we all going to switch to 6.8mm? Let’s talk about it.

SIG 277 FURY Hybrid Case Ammunition outperforms standard ammunition in similar calibers, with decreased bullet drop and increased energy on target. Developed for the U.S. Military's Next Generation Weapon Systems.

采用.227 FURY（6.8×51毫米）SIG Hybrid钢铜混合弹壳弹药及采用SR-25规格弹匣。 加入双边枪机释放钮，而可翻转T型拉机柄改为一般MCX的双边拉机柄。

2023年3月1日 · .227 Fury was SIG Sauer’s design for the program, hoping to be adopted. Clearly, that worked out. The round was accepted by SAAMI in 2020, then the round, along with the …

The SIG .277 Fury has a skeletonized look with a fully adjustable, folding Precision Stock, an ergonomic pistol grip, a two-stage match trigger, a one-piece aluminum receiver for heightened accuracy, an M-LOK mounting system, and has an extremely light 6.5 …