by smustian Sun Dec 29, 2013 1:08 pm, Powered by phpBB Forum Software phpBB Limited. 300 blackout cycling issue???? - Sniper's Hide Forum The 300 in 300 Blackout stands for .30-caliber, which is a measure of the diameter of the barrel a bullet is designed to be fired through. Summary: The 300 Blackout has significantly more muzzle energy than the 5.56, and this is particularly true when youre shooting these cartridges through shorter-than-average barrels. . However, we show the problem and some testing. The 5.56 (pronounced five-five-six), also known as 5.5645 NATO or the 556, was designed in 1980 to work with the AR-15 rifle and is the standard rifle cartridge for all NATO forces, including the United States, England, Germany, and other countries. The only time when increasing the barrel of a 300 Blackout beyond about 9 inches or so would offer a significant advantage is when youre taking shots longer than ~300 or so yards. So, how do you maximize bullet energy without exceeding the speed of sound? Worth the price if your lifes on the line, though. Why? I first viewed the 300 Blackout with a jaundiced eye, but it's proving to be one heck of an effective, close-range hog sweeper. More powerful, hard-hitting, and deadlier than 5.56/.223 (AR-15) ammo, Hollywood quiet when fired through a suppressor, The perfect all-rounder cartridge for plinking at the range, home defense, and hunting, Its good but not as good as other ammostick with what youve got., Its just a novelty cartridge that will fade away like the fad it is., No one in the military uses it and neither should you., Everything you need to know about 300 Blackout ballistics, How the 300 Blackout compares to the 5.56, What the ideal barrel length is for shooting 300 Blackout. In other words, if you were to shoot a 5.56 through a 9-inch barrel, it would have significantly less muzzle energy than the 300 Blackout. At my shop I won't sell 300 BLK barrels with carbine length gas systems. Not a lot, but those high B.C. I know Noveske makes good products, but maybe you got an out-of-spec barrel. . I could see no real advantage offered by the .300 Blackout in supersonic form over the .223 Rem. AR brass has thicker neck walls than .300 AAC Blackout brass, sizing without the expander ball will still increase the neck tension in loads of the latter. 300BLK sizing issues! Need help - Rifle/Shotgun - Forums Lets consider the Blackout with 150-grain bullets at 2,100 fps. 223 to 300 BLK RT1500 trim Problems - Dillon Precision Reloading In many ways, the 300 BLK in design terms is the opposite of a modern match cartridge like the 6mm BR or 6.547 Lapua. Are you running a can with your subsonic and are the subs factory or handloads? and 5.56 NATO loads. The 5.56 is more or less the opposite of the .50 BMGits half as wide and 10 times lightermaking it pretty worthless for penetrating through barriers. But when I watch some videos on YT they always look like ready to use Also guessing that you've already checked that your gas block is properly lined up with the port; opening up the port would be my last resort unless it's one of the barrels known for having small ports to begin with (have to search around the net, don't remember which they were but there was some discussion of them a while back). Some bullets are designed to be fired through longer barrels, and some are designed to be fired through shorter barrels. Trouble with RCBS 300 Blackout Dies Not Seating Bullets Consistently March 31, 2021 If you're having trouble with RCBS or Hornady 300 blackout dies not seating bullets consistently, this should help. . Chris Parkin takes the Ruger American in .300 Blackout out for a spin, and reports back to us in this detailed rifle test and review. In short, the 300 Blackout is definitely worth investigating. Second, theres the fact that this bullet causes a lot more damage than a hollow point 5.56. Others states like Maryland, Hawaii, and Nebraska require you to use ammo that produces a certain amount of muzzle energy regardless of the caliber. The first thing you need to know about 300 Blackout external ballistics, is that this cartridge wasnt designed to shoot over long ranges. And, because 300 Blackout bullets are pointed instead of flat-nosed or round-nosed like 30-30 bullets, they are more efficient, more aerodynamic. And it should work at least as well as the 30-30 on big antlered deer. 300 Blackout ammo is legal for hunting deer in almost every state as long as you use supersonic ammo, and its legal in many states with subsonic ammo, too. 0. The reloaded rounds do plunk into the chamber and fall out if you point the rifle up. ***Fixed! 4500$, Caliber: Like the same mid-length gas that's on a 5.56/223 rifle? This additional mass gives the 300 Blackout a lot more momentum to push through obstacles and into your target. The only downside of these cartridges is the cost$1.8 per roundwhich makes it expensive to practice with this ammo. The first thing that strikes you about this cartridge is the shiny, silver tip of the bullet. Sounds like the case sticking in the chamber is the root of your problem. All in all, its probably a better cartridge for killing deer than 5.56, so not only is it legal its also preferable. . I immediately assumed the same bullet set-out problem was to blame, so I also tested it in the CVA Scout. The same properties that make 5.56 bullets fragment inside people also make it break apart when it hits wood or metal. Typically, these bullets are the product of thousands of hours of computer-aided design and testing and are much more expensive to make than standard practice ammo, but theyre well worth the cost. Keep in mind, that its wildcat predecessors like the .300-221 were known to be fairly accurate with the right twist rate. As you can see, the 300 Blackout has about 100 (ftlbf) more energy than the 5.56 at almost every distance. As the name implies, overpenetration refers to when a bullet passes through or misses your intended target and then continues on to hit something you didnt intend to shoot. Discreet Ballistics 188-grain Subsonic Selous Machined Expander 300 Blackout (Subsonic), Hornady 110-grain GMX Full Boar 300 Blackout (Supersonic). . Next, I tested terminal performance by firing each load into blocks of 10-percent ordnance gelatin. Sorry, an error occurred and we could not sign you up. It will eject the spent brass, but not pickup a new round. The 300 Blackout provides an elegant solution. Some people question whether or not the 300 Blackout is effective for killing deer, and the simple answer is, yesabsolutely. Instead, it was designed for combat, which typically takes place within around 300 yards (and the vast majority of that combat occurs within about 100 yards). Just like with the 190-grain VLD handload and most factory subsonic loads, bullet expansion was nonexistent and penetration was excessive. All AR-15 uppers are standardized to work with AR-15 lowers, so you know that the two parts will always match, too. In case you arent familiar with the term, plinking refers to more or less randomly shooting at stuff for fun, in a safe manner. Ive gotten quite a few emails from shooters with experiences mirroring mine. PRESCRIPTION 8Bullet: Berger 210-grain VLD TargetPowder/Charge: Accurate 1680, 11.8 grains Primer: Federal Small Rifle Cartridge Overall Length: 2.22 inchesMuzzle Velocity: 1,137 fps. . This is important, because the distance a bullet has to travel before hitting its target can drastically change how it behaves in flight and after entering the target. One problem with many subsonic 300 Blackout cartridges is that theyre loaded with enough gunpowder to achieve maximum subsonic velocityabout 1,050 fpsout of a 16-inch barrel. You can find factory, boxed ammunition anywhere from a 110-gr. If you were to keep pushing on the car, thoughnot necessarily pushing any harder but pushing on the car for longerthen it would gather even more speed and move even further. The 7.62 Soviet's cartridge taper prevented reliable feeding in AR magazines and created wear on the bolt. This is particularly true at longer ranges, where bullets begin to drop faster and it becomes harder and harder to predict where they will land. Their higher B.C. The best hunting ammo will generally include all of the features above, but the particular balance of accuracy, speed, and lethality you want depends on what youre trying to kill as well as your personal preference. In the case of hunting, you want to kill the target as quickly and humanely as possible. PRESCRIPTION 6Bullet: 150-grain Nosler Ballistic TipPowder/Charge: Hodgdon Lil'Gun/17.0 grainsPrimer: Federal Small RifleCartridge Overall Length: 2.18 inchesMuzzle Velocity: 2,058 fps. The Ranch Rifle was not quite as accurate as we had hoped, averaging five-shot groups approaching 3 inches from center to center on outside shots. So while some of us have chased after .300 BLK for its usefulness in hunting medium-size game, potentially defense, or even for the recreational enjoyment of the round, its safe to say that we will all experience more pleasurable range time with a dedicated .300 BLK magazine for our .300 BLK firearms. The bolt wont close on a .300 Blackout round if it is closed slowly, but if the round has low neck tension, the momentum of the bolt carrier can force the bullet back into the case, allowing the bolt to close and lock. Often referred to as simply .300 BLK, it is simply a close cousin of a .223 Rem casing (technically .221 Fireball) that has a .30 caliber bullet placed in its upsized case mouth. I even took the time to order a special 1:7 twist barrel from Bartlein barrel to give me the edge with the heavy loads. The point is that if you are going to choose a rifle sized weapon, you ought to use ammunition that can do rifle sized work. Please help with my 300 BlackOut Rifle!!! When youre looking for plinking and practice ammo, a good rule of thumb is to look for the absolute cheapest ammo possible, and then go with whatever is slightly more expensive than that. One notable newcomer to the world of premium hunting ammunition is Discreet Ballistics. Its legal and effective for killing deer (in many states its illegal to hunt deer with 5.56 ammo). Well, firstly, the aluminum nose of this bullet allows it to penetrate relatively soft obstacles like drywall, glass, and plywood without falling apart like 5.56 would. The barrel is 16" with a mid length. This showcases the dual purpose of the round. With. Even worse is when a combine that harvests grain needs a part only made in China. 300BLK pistol. Failure to Eject. - TNGunOwners.com Frank Green at Bartlein barrels uses the example of High Power rifle competitors using stock Colt 1:7 rifles back in the day experiencing 4 MOA results with 55 grain loads, and sub MOA with the same rifle and shooter using the 69 SMK. While there are a ton of advantageous crossovers from the .300 BLK to our beloved 5.56 NATO rifles, you might want to reconsider using your 5.56 NATO/.223 magazines for .300 BLK. To get down to the nitty gritty; live rounds are "being left" in the chamber. Others say you should use the heaviest, most powerful ammo you can find. You will have to tweak subsonic handloads based on your rifle and the ambient conditions in order to get consistent subsonic performance. Potentially both. Not only do hollow points create much larger holes, they also cause the bullet to slow down much faster after entering the target, reducing the chances that itll pop out the other side. Before we talk about the terminal ballistics of 300 Blackout, lets look at how much 300 Blackout bullets slow down on their way to the target. If you spent a lot of time with your 300 BLK and couldnt get the precision you wanted out of it, maybe it wasnt you?
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