Just like you’d probably expect from the big differences in their external dimensions, there are some pretty sizable differences in the ballistics of each cartridge. Average Penetration Depth: 14.8 inches V-MAX ® 83177 2100 1531 1133 —166 88 48 -1 5 0 -138 … I've read that a 9" 300BLK matches a 16" 5.56 in terms of energy? Too much gas siphoned off (and too much energy delivered to the action results in feeding issues and low muzzle velocity. Now, Join our mailing list to receive the latest news and updates, AmmoMan.com The vast majority of AR style guns use either a direct impingement or gas piston system to cycle the action and chamber a new round. Ballistics Chart for bullet at 1050fps Muzzle Velocity (courtesy JBM Ballistics) Ballistics Chart for bullet at 900fps Muzzle Velocity (courtesy JBM Ballistics) So why don’t other subsonic 300 Blackout manufacturers make two loads to accommodate both long and short barrels? -The .300 BLK uses bullets with a higher ballistic coefficient but isn’t moving fast enough to take advantage of its sleeker projectiles. This is why the 5.56 shoots flatter, with less wind drift although having almost half as much energy. Copyright © 2020 AMMOMAN.com. At 200 yards, the 60.5 inch bullet drop of a.45 round is similar to a.300 Blackout subsonic round. At 50 yards, the difference is 248 lb.-ft. or a 34.73% advantage. .209 Velocity 3240 Box QTY 20 Catalog # 21520. Although for ammo availability-wise, the 350 Legend could beat 300 BLK, still, the 300 Blackout is more cost-effective. This calculator will produce a ballistic trajectory chart that shows the bullet drop, bullet energy, windage, and velocity. Ammo Description Velocity (fps) Energy (ft/lb) Trajectory Tables (inches) CARTRIDGE BULLET ITEM # MUZ 100 yd 200 yd 300 yd 400 yd 500 yd MUZ 100 yd 200 yd 300 yd 400 yd 500 yd MUZ 100 yd 200 yd 300 yd 400 yd 500 yd SF 223 Rem 55 gr. 300 Sav. At 300 yards, the.300 Blackout projectile retains 154 ft.-lbs. Bullet Weight: 190 Grains Average Penetration Depth: 13.54 inches Muzzle Velocity: 990 fps .300 Blackout was specifically designed to work well with the M4/AR15 style of guns. Energy at 100 yards: 310 ft/lbs A subsonic .300 round is nowhere near as powerful as faster supersonic round of the same ammunition. Although the 300 Blackout’s effective range depends on the shooter and application, the chart above provides rough guidelines for consideration. The 308 is actually the commercial designation of the 7.62x51mm NATO cartridge. That’s quite the technological achievement. At 200 yards, the 60.5 inch bullet drop of a .45 round is similar to a .300 Blackout subsonic round. One of the rounds uses open-tip match (OTM) bullets, and one is a conventional full metal jacket round. We found one round of the Sellier & Bellot ammo and one round of the Hornady Black ammo underneath the table that held the shooting gel. The following ammunition cartridge ballistics information and chart can be used to approximately compare .30-30 Winchester vs .300 AAC Blackout ammo rounds. SST InterLock 80574 2840/2489 2651/2169 2470/1883 2296/1627 2129/1399 1969/1197 -1.5 1.7 0.0 -7.4 -21.5 -43.2 LM 7MM-08 Rem 139 gr. Yes, another 300 AAC Blackout vs. 5.56 NATO article. If you like what you see please consider supporting my channel on my Patreon page at https://www.patreon.com/mbell556 In the chart, bold-faced entries indicate the last distance at which each Hornady load drops less than 5 feet in different length barrels—for those uncomfortable dialing in or holding over 60 inches. Expanded Bullet Weight: 189.6 grains He is an active competitor in USPSA, IDPA and 3 Gun and is an NRA-licensed firearms instructor. While having a chunky projectile is a nice improvement over the standard 5.56 cartridge, it does mean that you lose some muzzle velocity. Energy at 100 yards: 442 ft/lbs I was intrigued to compare it with my HK UMP 8-inch barrel gun. We were able to recover and measure all five rounds we shot into the gel. This means that while the sound of the round firing is quieter when using a suppressor, there is still a very loud “crack” when the bullet breaks the sound barrier. 30-378 Wby Mag. 300 AAC Blackout ~ 125 Grain ~ Trajectory Chart. Expanded Bullet Diameter: 0.54 inches To put this into perspective, a Boeing 737 commercial airliner travels at a cruising speed of 600 mph, or 880 fps. Ballistic Coefficients of: 0.318 0.298 0.287 0.287 0.287. 7.62x39. Bullet Drop at 100 yds: 9.22 inches 5.56 vs 308 Winchester vs 300 Blackout Ballistics. Altitude: 0 feet or 0 metres Temperature: 59°F or 15°C Air Pressure: 29.53 in Hg or 1000 mbar Humidity: 78% 125gn Woodleigh PP Velocity G1 Ballistic Coefficient .270 Range Yards 0 50 100 150 200 250 300 350 400 450 500 f/s 2205 2058 1917 1782 … Bullet Weight: 208 Grains 300 Blackout 110 gr V-MAX® Hornady BLACK ® Item #80873 | 20/Box . . Bullet Weight: 200 Grains What’s A Bail Out Bag And Why Do You Need One. 300 Rem Ultra Mag. A grain is a unit of measurement used in the firearms industry for measuring bullet weights, equivalent to about 1/15th of a gram. Terminal Ballistics Terminal ballistics of a round are the qualities it has when it hits the target. Bullet Drop at 200 yds: 72.52 inches The 300 Blackout still costs cheaper for a dollar or two per box. GREATER kinetic energy than the 5.56 NATO projectile, equal to a 45.97% increase. 300 Blackout is designed to use heavier bullets in the 190-230 grain range which travel at subsonic velocities, yet still work well in the M4/AR platform. Subsonic .300 Blackout rounds are a bit of an outlier in the world of rifle ammunition. Avg. The short, blunt tip of the Hornady Sub-X round, on the other hand, is more commonly associated with pistol bullets, and that resulted in results that mimicked the results we’ve seen from pistol rounds fired into this testing medium. It’s that last type of rounds that we’ll be testing today. That energy is delivered to them from the gases siphoned off by each round firing. In terms of hit probability, the Blackout has an effective range of 460 meters. 30-30 Win. Cartridge 223 Remington Type TSX FB Weight 55 B.C. 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