The Escadrille – Best AR Cartridge Ever!

By gunwriter Not too long ago I decided all this silliness with trying to invent a new and better AR cartridge needed to stop. So, I decided to devise the best solution to the problem with a goal that the new cartridge must utilize standard AR-15 magazines, while maintaining standard capacity. That it must deliver at least 1,000 ft.-lbs. of energy at 300 yards, offer supersonic and subsonic performance, work with a wide selection of bullets and must serve competitive shooting, hunting, and tactical applications. The .300 AAC Blackout accomplishes this with the .223 Rem. case and a larger-caliber bullet, so the .223 Rem. as a parent case was not an option. Larger-diameter cases like the 7.62×39 mm were no good, because they reduce magazine capacity. The 6.8 Rem. SPC case seemed perfect since the diameter of its parent case, the .30 Rem., still allowed for standard capacity, and 6.8 Rem. SPC bolts are readily available. Thirty caliber seemed the obvious choice, but most .30-caliber bullets are designed for velocities unachievable from an AR-15. This is true for almost every caliber larger than .223 with one exception: .311. And, with a bore of .311, .32-caliber pistol bullets could be used. The advent …Read the Rest

Source:: Empty Cases