The 6.8mm Remington SPC was designed to perform better in short-barreled CQB rifles after diminished performance from the 5.56 NATO when the M16A4 was changed from the rifle configuration to the current M4 carbine. The 6.8 SPC delivers 44% more energy than the 5.56mm NATO (M4 configuration) at 100–300 m (330–980 ft).

2019年6月6日 · The 6.8 SPC, also known as the 6.8mm Remington SPC, is an intermediate rifle round designed to outperform the 5.56. This is especially true when it came to close quarters use, the 5.56 was underperforming in the close range firefights that …

2025年3月27日 · In this 6.8 SPC guide, we will reveal all the information you need to know about the 6.8 SPC ballistics and why this round is great for close-range combat, competition shooting, and hunting. We will also compare the 6.8 SPC cartridge with both the .223 and the 5.56 rounds to see how they really match up.

The 6.8 SPC, especially in SBRs and large format AR pistols, is one of the most effective “black rifle” cartridges at close (200 yards and under) ranges, delivering more kinetic energy on target than any 5.56 ever could.

Below, you’ll find an 6.8 SPC bullet drop chart that gives you a general idea of the 6.8 SPC trajectory. Note: The chart above is an example of one 6.8 SPC load, and actual ballistic performance may vary depending on bullet weight, lot, …

2023年3月9日 · Here is an in depth history of the 6.8 SPC along with pros, cons, ballistics, and what it's used for in the civilian world.

2017年6月19日 · Intended to launch heavier bullets than the standard U.S. 5.56 round, the 6.8 Remington SPC uses the 1906-vintage .30 Remington cartridge shortened and necked down to accept a .270-caliber (6.8mm) bullet.

2021年12月26日 · The Remington 6.8x43 mm SPC cartridge chambered in the Barrett M468 carbine gets more punch out of the M4 and M16 platforms than the 5.56x45 mm. Elements within the U.S. Special Forces...

The SPC maximized knockdown energy without sacrificing undue magazine capacity or conspicuously increasing felt recoil. A 6.8mm (.277 caliber) bullet diameter was chosen to split the difference between the 6.5mm (.264) and 7mm (.284).

As a highly-effective, yet lightweight, round, 6.8 SPC is becoming extremely popular with civilian shooters, law enforcement, and militaries across the world as a near-perfect balance of stopping power and ammunition capacity.