Whether youre hunting, defending your home, or just shooting suppressed at the range, 300 Blackout is a popular and adaptable cartridge. 4. It is a niche gun not even available to the public. In a 16-inch barrel, .300 Blackout ammunition gets impressive velocity and accuracy, allowing you to hit targets over 150 yards away. Wheres a good source for ballistic data muzzle velocities for various bullet weights , loads, fired from various length barrels. Did you get it repaired? dear sirs..just want you all to know how much, ..WAY DOWN DEEP IN THE PINEY WOODS WOOTEN. Save my name, email, and website in this browser for the next time I comment. I am always available for you. http://blog.silencershop.com/300-blk-impressions/ Fortunately, you can reduce gunfire noise to protect your ears or hide your position by adding a suppressor to your barrel. (That was a mistake Ill rectify next barrel probably.). Yeah, I lose some velocity for supers in an 8. I doubt you would get extra wear and tear from using supersonic ammo in it. Dennis, running 7.6239 in an AR has a whole bunch of issues on its own. Mike: I cant seem to edit my comment. In any case, you need to start by fixing a variable (target velocity, barrel length, cartridge) and go from there. One important consideration before you set out to build your AR-15 in the .300 Blackout is knowing the scope of usage of your gun. This issue isnt unique to 300 Blackout bullets, though. 300BLK vs. 5.56? Matt Gomes -, We've updated our Garand Thumb post to include vid, Sporting Arms and Ammunition Manufacturers Institute, Understanding Different 12-Gauge Shotgun Load Types, 300 Blackout Effective Range & Best Barrel Length, Survival & Backpacking Water Filter Tests, Best 9mm Ammo: Plinking, Training & Home Defense. Assuming youre serious about hand-loading, you can purchase internal ballistic software to sort this out from an educated standpoint rather than following rules-of-thumb. (function() { Its the pressure of expanding gas behind the bullet that accelerates it, and it doesnt fall off at 9. A 6-inch .300 Blackout barrel is short enough to carry as a concealed weapon, and drawing and aiming the reasonably sized weapon is hassle-free. Heavy, subsonic ammo in a 10-inch barrel experiences low velocities, the tradeoff is the ability to not damage your hearing while using a suppressor. A 9 to 10-inch .300 Blackout barrel keeps a gun portable and short enough to wield easily. With a 20-inch suppressed barrel, you can achieve a bullet velocity of over 2,630 feet per second (fps), leading to more impactful shots and reduced bullet drop. Most AR-15 upper 300 Blackout rifles feature the 1:7 and 1:8 twist rate, which is the rifle barrels spin rate. You are incorrect on one critical detail: Adding more barrel length after that point might still increase the velocity a bit, but the added weight isnt always worth the extra dollop of velocity.. [Email your firearms-related questions to Ask Foghorn via[emailprotected]. I was at first considering a 9" barrel with a 1:7 rifling, for that is what the cartridge was designed around. 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. Sound travels at 1,100 fps at sea level on a standard day. This makes the .300 Blackout an effective, versatile, and reliable close combat round. I make my living building high end audio equipment, I cant afford ear damage. 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. The last thing you ever want is a loosening silencer while shooting rapid fire or full auto. The 300 Blackout would never see mainstream military use, although it became popular in the civilian shooter market. And yes, the .300 blk is designed to burn off in 9, but its not guaranteed that every round you could possibly put through it will do so. Rumor has it that SIG SAUER is coming out with their new line of rifle silencers at SHOT Show next year,and they are currently appear to be quieter and more durable than anythingelse on the market. The .300 Blackout also comes in a supersonic variant, which means once fired, the bullet travels faster than the sound barrier. Web5 models Noveske Lo-Pro Gas Block 300 AAC Blackout Barrel (1) As Low As (Save Up to 14%) $351.50 Final Sale. They result in less range and more bullet drop at distance. WebThe bullet drops about 4 inches at 100 yards, 2.5 feet at 200 yards, 8 feet at 300 yards, 18 feet at 400 yards, and 30 feet at 500 yards. For .22LR, for instance, the optimum length is 16. Consider a cartridge that has enough energy to travel 1000 yds in free air, standard conditions. The only real question is what twist rate to go with. I strongly suspect thats where this comes from. Yes, there are loads that can use longer barrels, but you need to have a specific goal in mind before there is a large benefit in this caliber. creates and publishes industry standards for safety, interchangeability, reliability and quality, as well as coordinates technical data for agencies, enthusiasts and manufacturers. anyone have a good reliable source for ballistics of the most commonly commercially available and popular 300 blackout roundish relation to barrel length and rifling? Great info Nick. 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. Dumb question- How many stamps would an M16 with a short barrel and a suppressor require? 300 Blackout Fine-Tuning: Finding the Right Barrel Length for Your Rifle, For optimal performance with a suppressed, Bird Colonel Trashes Tin Eagles With False Testimony in California Assault Weapons Ban Case, Keith Olbermann Calls for Civil War as the Only Way to Stop Mass Shootings, Illinois Freedom Week Starts Today: Federal Court Blocks Enforcement of Illinois Assault Weapons Ban. A 125 gram .300 BLK bullet fired from a 16-inch barrel has an effective range of about 500 yards, while the same ammo shot from a 9-inch barrel has an effective range of about 480 yards. As a result, heavy-grain subsonic bullets struggle to retain their subsonic terminal performance, while supersonic ammo has increased effective range and reduced bullet drop. I was at first considering a 9" barrel with a 1:7 rifling, for that is what the cartridge was designed around. Even the bolt stays the same, and all that changes is the barrel. CLICK HERE for more information. I just ordered a 16 inch barrel and stuck it on my Stag upper. In barrels16 or longer it is going to have a good 100-200 fps over the BLK using 110-115 grain projectiles. Although the 300 Blackouts effective range depends on the shooter and application, the chart above provides rough guidelines for consideration. The 300 Blackout round is an excellent choice for home defense as it combines power and efficiency with lethality when fired from a short-barreled rifle. These loads are heavier than most rounds and feature an adjusted powder charge that delivers peak bullet velocity by combusting completely within short barrels. They announced their current suppressor line at the 2013 shot show and we are now just starting to see them trickle into the retail channel. Any insight on following: However, the 300 Blackouts heavier bullet compensates for its lesser speed to grant it an effective muzzle energy, and its 0.84 greater diameter enables it to inflict a wider wound channel. Mission accomplished. Jones design of .300 Whisper, gave it an ever so minor redesign, renamed it, and submitted it to SAAMI for certification. The twist rate is when the bullet twists within a barrel once fired, which helps keep it at a high velocity and helps maintain accuracy. I have a Q Honey Badger Barrel Assembly which is 7 and a Q Trash Panda. I have a 762-SDN-6 suppressor on a 300 BLK rifle I built with a 16 barrel shooting subsonic 220gr ammo but I dont get the tick, tick, tick when shooting. Remington now sells a variety of 300 BLK ammo: 1) 125 grain open-tip match with a custom Sierra bullet; 2) 220gr subsonic, and 3) 125gr AccuTip (photo below). By and large, the relatively rapid loss of velocity confines the 300 Blackout to near medium and close ranges. PWS is as close as you can get right now. As a simple example, shooting Titegroup and Blue Dot out of my SD9VE with a 4 barrel gives almost no meaningful velocity change. I recommend the Silencerco Omega FTW. By design, the 300BLK just doesnt give up that much velocity until you get down below 9-10 of barrel using factory ammo. But for a lot of shooters, its the ideal do-all round in an AR platform rifle. And since you can't stuff more gunpowder into your ammo, it's essential to ensure you do not go too extreme on the barrel length. At 16 inches, muzzle velocities are near their maximum. My purpose is close quarter confined space self defense, not hanging out a helicopter shooting wild boar, although that sounds like a helluva lot of fun. Barrel twist rate matters as well, its another factor to consider when choosing barrel length and determining 300 Blackout effective range with your rifle. First of all, with 300 BLK, if you are switching from supersonic to subsonic rounds, you might want to be able to quickly make the change from unsuppressed to suppressed. Subsonic .300 Blackout rounds fix this problem by traveling slower than the speed of sound. Wildcattersgun owners who fabricate and reload cartridges of their own designexperimented for years with a .30-caliber AR-15-friendly version. 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. If I had an adjustable gas block maybe but in reality I probably need Rifle+2 gas. 300BLK supers wont touch the 6.8SPC in a carbine length or longer barrel, and if you dont plan to suppress or run an SBR is just a way better choice. 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). Much better QD system than AAC, and with the replaceable mounts, you can even go direct thread if you want. This will make sighting to that farther distance simpler. Shorter barrels do not result in less accuracy. 300 BLK is the perfect round to suppress. The 6.5 Grendel is a lower to mid-power 26 caliber cartridge. They instead heavily based their new cartridge on SSK Industries 300 Whisper. With a warm barrel/suppressor unit, it is possible to shoot impressive groups. Plus higher velocity typically requires less hold over. Because the Blackout is wider, yet they tend to have similar weight, the Blackout has a lower Ballistic Coefficient than the 6.5 Grendel. .the same content appeared at breachbangclear.com about a week ago, they dont attach a name to it either. Subsonic and supersonic ammo both have features that pair well with a variety of barrel lengths. 1) Barrel length? I completely agree with the SDN-6, I have one too but like everything else, buying a can is a moment in time and you get what you get. 300BLK vs. 5.56? It didnt take long for engineers at two of the industrys finest to solve the problem, though. Exactly what Int19h (?) ga.src = ('https:' == document.location.protocol ? Lastly, a 16-inch barrel provides a long line of sight to improve your aim. The main question you need to ask yourself is whether or not you plan on using a suppressor. Eventually, they got their own 300 Blackout cartridge SAAMI approved in 2011. Even though the .300 AAC Blackout's design implementation was based on the shell casing of the .556, the latter cannot be shot from the barrel of a .300 Blackout. We also offer our patented AR-15 and .308 Easy Jigs which is the first 80% lower jig that makes it ridiculously easy for a non-machinist to finish their 80% lower in under 1 hour with no drill press required. 300 Blackout SAAMI Cartridge Specification. I then hit it 15 times in a row. At Ballistic Advantage, we offer high-quality barrels for AR-style rifles, and you can find one with the perfect length to meet your handling and accuracy preferences. Heavy, expensive, and absolutely fantastic. BA, Rosco, WC, and others have all worked immediately without any specialty tuning. The point is, based on the design parameters of the 300BLK round while you do get more velocity from a longer barrel the % increased velocity per inch increase in barrel isnt as much as with say a 5.56. Thats serious power up close, but that slow speed and heavyweight takes a toll at 500 yards. From there it really degrades. anyone have a good reliable source for ballistics of the most commonly commercially available and popular 300 blackout roundish relation to barrel length and rifling? We stand behind all our products and were here to support you. Nicole Krenze, *Competitive Shooter of the Week* According to Advanced Armament Corp the entity that developed the .300 Blackout cartridge its optimized for a 10 barrel with suppressor. The concept of putting a .30-caliber bullet in a shortened 223 case has been done before, but not as an industry-wide standard that anyone can make products for, royalty-free. Not on my 300 blk. Bullet drop is calculable, though, so that should really fall under marksmanship, as opposed to intrinsic accuracy of the rifle? A more rigid barrel is better. One of the best things about 300 BLK is that it gets complete burn in a much shorter barrel. A 20 inch barrel will not hinder you with your AAC. I need to get the lathe going as well, and I havent had the time or patience to do it. As for silencers, either wait for the SIG SAUER cans to come on the market or get yourself an AAC MG-SD. 300BLK vs. 7.62x39? Sorry to be bearer of bad news. Heavy subsonic ammo in a 10-inch barrel may have lower velocities, but allows for the use of a suppressor without damaging your hearing. I like loading 300blk with a hand press for some unknown reason..I developed an affinity for the hand press when I was loading for my 460 XVR. A lot of variables involved. This length ensures complete gunpowder combustion to generate maximum velocity and stabilizes the bullet for a flatter trajectory and improved accuracy. With or without the can. Another reason why 9 to 10 inches is the best overall .300 Blackout barrel length is the minimal muzzle rise and comfortable recoil. A big factor of consideration when picking a rifle, its barrel length, or ammunition is the type of target you wish to use it on. For example, a 1:8 twist is best for lightweight supersonic rounds, while the 1:7 twist is recommended for heavy subsonic rounds with a suppressor. Perfect for integral suppressor or just using as an SBR/pistol. Groups 110% of the size of my 16 5R barrel on the 700 test gun. He never got it to run right and put too much money into it. By and large, the relatively rapid loss of velocity confines the 300 Blackout to near medium and close ranges. But shortening the guns usually has resulted in less accuracy. 300 Blackout WAS stolen from 300 Whisper. All you need is a bigger diameter barrel. Buy a .308 from a legit company and save yourself headaches. For example, with a 10.5-inch barrel, the .300 Blackout clocks an average velocity of 2200 feet per second. Maybe he purchased them for a few hundred dollars prior to 1986 or inherited them from someone who purchased them for a few hundred dollars prior to 1986. 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. One of the best things about 300 BLK is that it gets complete burn in a much shorter barrel. Remington now sells a variety of 300 BLK ammo: 1) 125 grain open-tip match with a custom Sierra bullet; 2) 220gr subsonic, and 3) 125gr AccuTip (photo below). If it's inside your house in home-defense scenarios, a short barrel will allow for better maneuverability. The SAAMI diagram for the 300 BLK is shown below. Pistol calibers often reach near optimum velocity at about 8-10; longer lengths may increase velocity, but only by slight amounts. An extra inch wont hurt anything. 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. I dont shoot subsonic. I dont think you can get there in 9 inches with full-size powder loads regardless of how fast-burning they are. 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. Accuracy differences would be more apparent in supersonic loads where the transition from supersonic to sonic happens before the target. The barrel's length also allows the bullet to stabilize before exiting the muzzle, leading to a flatter trajectory and better accuracy. The accuracy of a .300 Blackout barrel will depend on the exact round and barrel length you use. Converting an AR-15 to fire 300 Blackout is as simple as swapping its barrel. I posted this but deleted it. The deer Ive taken with my 8 300 BO dont know or care. If you get too close to your prey, you may spook it, causing it to run off before you can shoot. A whole new world of hunting and target-shooting options open with that difference, a fact sometimes obscured by the cartridges subsonic and military roots. It probably worked loose after multiple shots, and somebody forgot to tighten it back up. Let's find out! Save my name, email, and website in this browser for the next time I comment. I avoid max loads to increase case life, so speed isnt as important as how accurate the load will shooot. 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. If you build an AR pistol, the 300 is the perfect round. On a gun you plan to carry, super heavy barrels are not ideal. 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. FBI: Crime Rate Dropped During 2013, Year of Record Gun Sales. My friend bought a 300 Blackout upper from PSA and put a can on it. And it is VERY quiet AND compact. 80% Arms sells AR-15 and .308 80% Lower Receivers, 80% Lower Jigs and other accessories which allow you to legally build a firearm at home in most states. Muzzle Velocity: 2,259 fps. QA/QD systems may add more tolerance stacking and complexity, but the silencer is snug and firm. if you do want to talk, you can come to me. Gun Review: Henry U.S. 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. Let your fellow shooters know share this article using the Facebook, Even the .357 magnum picks up considerable velocity when shot from a 16 or 18 carbine. The SDN just doesnt silence 300 Black very well. 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. With supersonic rounds for maximum muzzle velocity to subsonic loads that quiet the roar by slowing the pace. In my ignorance, I would say its because I want to reduce wear and tear on the suppressor. WARNING: With some bullet options (and setback during chambering) 300 Blackout rounds will go into a .223 chamber and fire. Sig ONLY uses that 6.75 (not 6) barrel length for their Military full auto Black Mamba entry gun MCX. A second stamp for the suppressor, a separate serialized firearm.. Subsonic 220Gr loading is 9.6Gr IMR 4227 and that is a near capacity load Id guess there is room for 11Gr. I dismiss this entire article as slow news day page filler. A 125 gram .300 BLK bullet fired from a 16-inch barrel has an effective range of about 500 yards , while the same ammo shot from a 9-inch barrel has an effective range of about 480 yards. With the War on Terror on the rise at the time, the development was also motivated by the need to produce a .30 caliber cartridge that would produce better results in combat than the 5.56mm rounds that were currently in use. *Calculations are estimates using Hornadys on-line ballistic calculator and adjusted by the companys estimate of between 25 and 35 fps loss per inch of shortened barrel length (30 fps subtracted per inch for the purposes of this chart).

Richard Sheridan Ann Sheridan, Brooke Adams Tony Shalhoub Wife, Nikka Martinez Family Background, 100 Psi To Scfm, Phcs Practitioner And Ancillary Only, Articles OTHER