300 blackout For instance, longer barrels generate more bullet velocity. A mystique surrounds the .300 BLK (AAC Blackout), and it overshadows this utility players ability to deliver All-Star numbers in a variety of roles. Twitter and other social media icons below. Since the 300 BLK stuffs a larger bullet into a cut down .223 case (which doesnt hold all that much powder to begin with), you have less powder to play with and thus dont need as much barrel. The barrel should also deliver enough bullet velocity to hit far-off prey with deadly impact. You can blow up your gun and sustain serious injury. I was under the impression that accuracy needed to match bullet weight, (already mentioned), barrel length (also mentioned), and type of powder used. Attaching a 6 suppressor to this barrel length results in a total length of 14 to 16, which provides optimal muzzle velocity for accurate long-range shots. Best Barrel Length For Suppressed 300 Blackout For optimal performance with a suppressed 300 Blackout, we recommend a barrel length of 8-10. As a testament to the efficiency of the .300 AAC Blackout, several military units across the world, including the Netherlands, United Kingdom, and the United States, have adopted it. Longer barrels are not automatically more accurate. Ask Foghorn: What Barrel Length for Any discussion on the effective range is a minefield full of opinion best tiptoed over by indicating those figures make the .300 BLK at 300-yard shot territory most comfortable for veteran shooters. In the case of .308, if youre doing a bolt gun the longer barrel lengths can make a huge difference if you have the right powders same as my 9mm example. For 5.56 NATO, that point is 20 of barrel. The muzzle velocity used for 5.56 in the chart is with a 16 barrel, but the 300 BLK is using a 10 barrel. creates and publishes industry standards for safety, interchangeability, reliability and quality, as well as coordinates technical data for agencies, enthusiasts and manufacturers. These days, #1 on my list, especially for new silencer owners, is the Liberty Mystic-X. Shorter barrels do not result in less accuracy. There is almost NO need to have a barrel longer than 8-9. For the best experience on our site, be sure to turn on Javascript in your browser. Tyler Krenzel, While the AR-10 has been around for decades, there, *Competitive Shooter of the Week* vs 300 Blackout (with ballistics charts And if you are out in the wild shooting at some long-range game, a longer barrel will give you both the power and accuracy advantage. (AAC) or have you seen / heard of any better? A 1:8 twist works best with the light-weight supersonic rounds. In the chart, Hornady 110gr G-Max Full Boar (2,350 FPS At Muzzle), Hornady 125gr HP American Gunner (2,175 FPS At Muzzle), Hornady 190gr Sub-X Subsonic (1,050 FPS At Muzzle), *Competitive Shooter of the Week* It seemed to work OK for all those years. Compared to other bullets, a .300 Blackout is a 30-caliber bullet in a .223/5.56mm shell casing. 300BLK vs. 5.56? Hi Lance, well I thought like you did, stick it on and go but being a dumb old guy I did not bother to research much. Sig ONLY uses that 6.75 (not 6) barrel length for their Military full auto Black Mamba entry gun MCX. So Remington will be budget-priced UMC-brand 300 BLK ammo through at just $12.99 per box thats less than most other rifle cartridges than are more powerful than the .223. Heavy subsonic ammo in a 10-inch barrel may have lower velocities, but allows for the use of a suppressor without damaging your hearing. Great! Nowhere above did anyone mention the gas port or that once the bullet passes the gas port theres a significant reduction in pressure pushing the bullet and significantly more drag due to friction . But for hunters using a bolt gun, there are any number of tried and true options, such as the 7.6239, .30-30, and, of course, the .308 Winchester (7.6251 NATO). John McClain, *Competitive Shooter of the Week* Affordable Factory 300 BLK Ammo is Available That still wouldnt explain peoples prevailing view of barrel length driving accuracy, since the majority of shooting is not done at extreme distances. .300 Blackout ammo can be loud, especially when shooting supersonic rounds. The barrel also plays a role in the drop rate of the bullet. WebThe 300 HAMR 1-11.25, 1-13, or 1-15 twist match grade barrels are optimized for accuracy with 95gr to 150gr bullets from 8 to 20 barrel lengths. COPYRIGHT 2021, THETRUTHABOUTGUNS.COM. 7.62 x 39 usually runs in barrels with a 1:10 (ish) twist. Mine has a 10. And it also serves as a specialized 30-Cal rule-beater that lets 3-Gun competitors make major with a low-recoil cartridge that also offers long barrel life. Really -- the largest difference is barrel length. As the .30-Cal cartridge of choice for the AR15 platform, the 300 AAC Blackout, also known as 300 BLK, has become quite popular with black rifle owners. The difference between H4198 and TITEWAD would be a good example. Please tell us more about how awesome it is. In a 16 supersonic only AR there are vastly superior caliber choices like 6.8SPC. .300 Blackout Guide: Best Barrel Length, Build Tips & More. Our initial research data covered the relationship between barrel length and velocity for some 13 common handgun calibers/cartridges. The .300 BLK bullets are 0.30 inch in diameter (7.62 mm) and the .223 Rem (5.56 mm) is 0.224 inch. One thing is true your bullet accelerates until it either runs out of fuel or leaves the barrel (technically, youll start losing velocity before all the powder burns as a portion of the energy is used to overcome the friction of the barrel itself). If you're looking for a multi-purpose load for the .300 AAC Blackout, this may be the best bullet. Most AR-15 upper 300 Blackout rifles feature the 1:7 and 1:8 twist rate, which is the rifle barrels spin rate. Survival AR-7 Rifle, http://blog.silencershop.com/300-blk-impressions/. If you didnt before, you can now easily see there are many factors to consider when selecting the best barrel length for your .300 BLK rifle and determine the effective range of the caliber. The only real question is what twist rate to go with. So heavy a bullet conveys a subsonic muzzle velocity and correspondingly softer report. Why Shoot a 300 Blackout? For instance, having a relatively long barrel has the gases from the already burned-out gunpowder trapped for longer, which means there will be more push time of the bullet by the gases. If you start with wanting a suppressed gun, you will eventually get to the 300. Note that they used exactly the same twist on the TT30 and TT33 auto pistols and millions of SMGs chambered in 7.62 x 25. For optimal home defense with the 300 Blackout round, a barrel length of at least 6 to 8 is recommended. The .300 BLK bullets are 0.30 inch in diameter (7.62 mm) and the .223 Rem (5.56 mm) is 0.224 inch. I assume that there is a finite lifespan of the suppressor guts and shooting supersonic ammo at the range kind of defeats part of the suppressor benefit. if you do want to talk, you can come to me. WebThe 300-Blackout is a lower-power 30-caliber cartridge. Though its a common report that subsonic ammo isnt remarkably accurate for most users, Ive been very pleased with my Remington 700s performance with 208 AMaxs. Secondly (and the reason why my second .30 suppressor is fast attach) is that I have multiple firearms that I take to the range and want to be able to quickly switch between them. At 10-inches, muzzle velocity hasnt reached its peak. It also has a great barrel life, which means it can go for long periods and operate effectively under varying conditions. Keep reading to discover the best barrel length for .300 Blackout for different shooting scenarios. How many ATF officers does it take to count to two stamps? Although the 300 Blackouts effective range depends on the shooter and application, the chart above provides rough guidelines for consideration. Even so, 1:7 isnt terrible. Here is the old barrel length again Longer barrels have been proven to have better velocities and it depends on your burn rate on your powder whether you get the full use of your barrel. Hey Nick. Pick the barrel length (or performance target) you want and build a load around it then you can come up with some educated rules-of-thumb of your own. There is no real difference in muzzle blast from either, both rifles use identical Surefire brakes. However, heat build up effects point of impact. A 9 inch barrel is definitely a handy length, but it is certainly not the fastest. A 9" barrel will allow any 300 BLK cartridge to reach optimal velocity, while an 11.5" barrel will provide a bit more accuracy and stability if you plan on shooting mostly supersonic loads. However, if you want the best barrel length for .300 Blackout home defense, we recommend not going shorter than 6 to 8 inches. On the flip side SIG SAUER seems to think that 6 inches is perfect for them (their new MCX uses a 6-inch barrel). The latter will stop the bullet long before it exits the barrel due to the additional forces of friction opposing opposing the bullets forward movement. Perfect for integral suppressor or just using as an SBR/pistol. Sign up for our newsletter to receive updates and exclusive offers, Copyright 2023- Ballistic Advantage - All Rights Reserved. One of those AI chatbots thats been in the news recently? http://thetruthaboutguns.com/author/foghorn/, Illinois Freedom Week Starts Today: Federal Court Blocks Enforcement of Illinois Assault Weapons Ban. A 16-inch barrel will provide more velocity to compensate for the weight of the bullet, allowing it to travel further on a flat trajectory. Visit us today to browse the .300 Blackout barrel lengths we have in stock and place an order to receive your selection at your doorstep. 300 Blackout When picking out a muzzle for your assembly, keep in mind the muzzle's compatibility with available suppressor fittings. 21.5Gr shows pressure signs. However, this maximum effective length is determined by the barrel's length, and the 460-meter distance is achieved by a nine-inch barrel. It gets pretty messy from there. Mike: yes. 300 Blackout 1-7 vs Any length over that will actually result in lower velocities. At 16 inches, .300 Blackout barrel muzzle velocity is close to its peak, giving you a powerful weapon for making accurate long-range shots. The 300 Blackouts .30 caliber bullet can be made especially long, and as the result may weigh up to 220 grains quadruple the weight of the typical 223 Rem rounds. But for a lot of shooters, its the ideal do-all round in an AR platform rifle. I live vicariously thru you new school young guys, and your passion for AR platform and SBRs and various side uses- the hunting post you did awhile back was pretty useful, and points out the versatility of the .300. The deer Ive taken with my 8 300 BO dont know or care. The case heads are identical on 223 Rem and 300 BLK ammo, which makes the bolts on both interchangeable in many cases. There was an article on TTAG maybe a year or so ago comparing velocity loss from from a 5.56 16 vs 10 and a 300BLK from 16 to 9. Supersonic ammo out of a 10-inch barrel retains rifle caliber velocities, but with more significant bullet drop at longer distances. This high-speed feature means that the bullet will spend relatively less time in motion and thus less prone to the effects of elements like the wind. So heavy a bullet conveys a subsonic muzzle velocity and correspondingly softer report. Bullet drop is calculable, though, so that should really fall under marksmanship, as opposed to intrinsic accuracy of the rifle? Its a few hundred FPS from my 16 AR9. Thats water weight capacity. Preparing for 300 BLK upper build and have further questions: I want to use both sub and supersonic ammunition and am a reloader so leaning toward the 1/8 twist to take advantage of the calibures flexibility. Heavy grain subsonic bullets are barely able to retain true subsonic performance. Another shilling advertisement for Faxon Firearms products. That number comes from multiple conversations with the people who designed the 300 AAC Blackout cartridge, did the initial testing, and who continue to design guns around that caliber. Able to suppress all rifle calibers up to and including 300 Winchester Magnum, its perfectly at home on the 300 BLK rifle offering about 40% sound reduction. ANd then you have barrel harmonics to contend with. Drop is predictable; wobble is not. A more rigid barrel is better. Accuracy differences would be more apparent in supersonic loads where the transition from supersonic to sonic happens before the target. how much difference in sound is between a 30-30 and a300black out with a can on it. BBTI - Ballistics by the Inch :: Home For 300 AAC Blackout, that point is 9 inches of barrel. I feel strangely compelled to visit faxon.com and view their lineup of 300 blackout barrel lengths. This type of software isnt free, but as a one-time purchase its probably the best reloading tool you can get for the price and pays for itself quickly given the price of reloading components youll save. Exactly what Int19h (?) WebIn matters of velocity comparison, different barrel lengths for the .300 Blackout sit within the 25-50 feet per second per barrel velocity rule that governs most firearms. However, since a suppressor adds to the length of your gun, you dont want to add a suppressor and make your gun long and clumsy. Let your fellow shooters know share this article using the Facebook, I want to get a barrel and file a form1 but just havent yet. 300 Blackout Barrels Planes that increase their velocity until it reaches and exceeds that mark generates a sonic boom. A mystique surrounds the .300 BLK (AAC Blackout), and it overshadows this utility players ability to deliver All-Star numbers in a variety of roles.
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