This high velocity gives the bullet a muzzle energy of 1,358 ft/lbs, which is also about three times higher than most subsonic 220-grain 300 Blackout ammo and almost the same as supersonic 115-grain 300 Blackout ammo. 300 AAC Blackout ammo, SAAMI short name 300 BLK, also known as 7.62×35mm is a rifle cartridge developed in the United States by Advanced Armament Corporation (AAC) for use in the M4 carbine. Remington Express 300 AAC Blackout Ammo 220 Grain Subsonic Open Tip Match ammo review offers the following information; Designed to launch 30 caliber bullets from AR-style platforms, the 300 AAC Blackout cartridge has become extremely popular among many types of shooters. Remington UMC Rifle Ammunition 300 AAC Blackout, 220 GR, Subsonic, 20 Rd/bx . Sportsman's Guide has your Remington Subsonic, .300 AAC Blackout, OTFB, 220 Grain, 20 Rounds available at a great price in our .300 AAC Blackout Ammo collection Remington 300 AAC Blackout ammo for sale at AmmoToGo.com - Don't miss these 20 round packs of 220 Grain Open Tip ammunition in-stock now. This .300 AAC Blackout load features a 220 Grain Open Tip Match bullet which travels at 1050 fps and comes in a 20 round box. When you're in the market for a high quality, economical load for target shooting Remington UMC ammunition is what you need. We opted for some of the Remington Supersonic 120 grain loads for our range test. Remington UMC ammo is brand new production ammunition which features reloadable brass cases and noncorrosive primers. I'm interested in the performance and bullet drop when fired from a 9" AAC upper. For varmint hunting, target shooting, training exercises or any other high-volume shooting situation, UMC® 300 AAC Blackout 220gr Subsonic Open Tip Flat Base centerfire rifle ammunition offers great value with absolutely no compromise in quality or performance. I visited my local Academy Sports and found ammo by Remington, Federal, Barnes, Sig Sour and the Academy Store brand ranging in bullet weights from 110 grain varmint loads to 220 grain sub-sonic. This Remington UMC 300 Blackout ammo was designed to be quiet, reliable, and ideal in AR-15s chambered in 300 Blackout. Post by drail14me » Wed Jul 04, 2012 3:25 am I've been searching the net from ballistic data for the Remington Express Rifle 300 AAC Blackout 220 GR round. Part of today’s confusion over 300 Blackout effective range and barrel length often stems from this flavor..300 Blackout Subsonic Ammo. Remington Express Rifle 300 AAC Blackout 220 Gr ballistics. Remington UMC Rifle .300 AAC Blackout 220 Grain Open Tip Match Flat Base Centerfire Rifle Ammunition $95.99 $1.60/Round Newly Added Nosler .300 AAC Blackout Ballistic Tip 125 grain Brass Cased Rifle Ammunition $41.99 $2.10/Round 300 Remington Ultra Magnum 150 300 Remington Ultra Magnum 165 168 300 Remington Ultra Magnum 180 300 Remington Ultra Magnum 200 30-378 Weatherby Magnum 150 30-378 Weatherby Magnum 165 168 30-378 Weatherby Magnum 180 30-378 Weatherby Magnum 200 303 caliber (310, 311 dia) 7.62x39mm Gold Dot 123 303 British 150 303 British 180. The open tip design with a flat base allows consistent loading, with a crimp to reduce chances of bullet setback. The speed of sound is 1,275 feet per second (fps) at sea level and varies slightly with temperature and atmospheric pressure. 32 caliber (321 dia) 300 Blackout ammunition is relatively easy to find. 300 AAC Blackout 220 GR ballistics '' AAC upper which features reloadable brass and. 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