Supersonic ammunition will provide more range, energy delivered on target, and less drop or wind-drift at range. No. If you've chosen 300BLK to help accomplish this goal, you're on the right track. I dont know how many have fired a 5.56 AR-15 carbine inside a room, but its sensory overload. But! Subsonic bullets generally boast a lighter recoil than their speedy relatives, and have an added weight coming to around 180-220 grains in a standard .300 Blackout load. I owned a SA 300BO Pistol and I wont say your wasting your time but I sold mine for that and other reasons. One new winner* is announced every week! If you don't have any experience with a suppressor I recommend you do your homework on the different models as cost doesn't always mean best sound suppression or quality. The backpressure will not be enough to run reliably (if at all), and the accuracy will will also suffer. -moz-user-select: none; Get an AAC barrel (pistol gas) and run M4 style BCG, buffer and spring and you are GTG with super or subs. If this is a primary concern and you think you'll be shooting at targets within 100 yards then subsonic rounds complimented with a suppressor device is worth exploring. Suppressed .300Blk is under 120db and easily hearing safe. Plus, Im a believer in bigger is better respecting impact effectiveness of a bullet. it ALMOST made sense a year or more ago when all you could find was factory subsonic ammo Graphic design and branding: https://www.facebook.com/VisualGravy. Originally born of a US SOCOM contract with Advanced Armament Corporation (hence the.300 AAC Blackout name), our nations Special Operations Forces wanted a weapon system that could switch between sub-sonic and super-sonic rounds effectively and quickly, from a compact package, while not having to move away from the M4 based platforms they were already familiar with. If youve chosen 300BLK to help accomplish this goal, youre on the right track. by doubloon Fri May 27, 2011 8:16 am, Post There are a couple other AR conversions that work better at being supersonic only. 300 Blackout subsonic is one of the quietest rounds to suppress, particularly when fired through a closed breech firearm like a bolt action or single shot rifle. YTMyZGRiMDU5NDZiNjA1ZmIwMjgwZTgwMWE0ODkxZGYwMzFiZWRjMTU3In0= by 300Blk Fri May 27, 2011 9:36 am, Post Subsonic Blackout has a radically milder blast and report than 5.56 or supersonic Blackout. by 300Blk Fri May 27, 2011 7:25 am, Post The can boosts the pressure and affects trajectory. Factory ammo is unreasonable high, but reloads can be as cheap as 223. Some of you stated that you would pick heavier and quieter rounds to preserve situational awareness and communication abilities. [emailprotected], Reduced risk of over penetration from a pass through projectile. Discussion about rifles in 300 AAC BLACKOUT (7.62x35mm), hosted by the creator of the cartridge. America's Ultimate Shooting Sports Discounter, Subsonic Success: Getting Good Function From a .300 Blackout, The preceding is a specially-adapted excerpt from, Click to share on Facebook (Opens in new window), Click to share on Twitter (Opens in new window), Click to share on Pinterest (Opens in new window). Thanks for the info and well reasoned opinions. Because of the lower pressures at the muzzle, and the lack of a supersonic report, shooting "subs" is completely hearing safe and comfortable for the operator and those around them. I dont know if it will have the short comings of flame cutting as listed above. There is Barnes RRLP in 300 BLK, though it may end up as LE/Mil only. But I think I would rather go with the .30 Remington AR cartridge instead now. In keeping with this motif, an AR-15-style bolt carrier works best with subsonic. The 300BLK can run both super and subsonic ammo with a change of a magazine. A heavier grain, typically around 180-220 grains, introduces more weight to the projectile, preventing the bullet from exceeding speeds that would break the sound barrier like a supersonic round normally would. I had it 6 months before I got the silencer and put 500-700 rounds through it.. ZDUxNWQzNTY2ZTJiNjVhN2RiMzgwOWMxNWVlNDlhN2UyYzM3MTRiOGEzN2Zh NjI2MDFhZjNkMzY1NTA2MTQxNDNlYjJmMDNhNTQwOWM1ODc5MGRhZWY4Njlk 300 Blackout, is it worth it if you can not go short or - AR-15 Just because it's not ideal, doesn't mean it can't be suppressed. NetJnkie 6 yr. ago Oh duh. I have multiple 16 inch barrels in 300BLK and they work perfect. Hornady Subsonic Ammunition doesnt have the loud report of a supersonic round, and paired with a suppressor, its even quieter. Final one was with a 5.56 Ruger American Ranch Rifle. As a comparison, a 230 grain round of Federal JST .45ACP ammunition has a muzzle velocity of 863 fps and has 380 ft/lbs of energy at the muzzle when fired from a 1911. While subsonic ammunition surely does have its benefits when it comes to covert operations, close range, and personal defense, this kind of bullet is not ideal for the big game hunter. It all depends on what you want to do.Tons of 556 brass to roll your ownI like the 300 blackout in the carbine role..16 inch with supersonicsgreat venison and critter getter.I have no desire to spend the cash.and buy the stamp and the can Yeah the whole reason to get a 300BLK is for subsonic rounds to be hearing safe quiet with a suppressor. In the review on the MCX from ammoland the author says, "We experimented with a variety of 300 Blackout ammunition. If have two, 6.8s and you are thinking of a 300 blk.i say do it. That really all has to do with bullet design/bullet engineering. These advantages are powerful features of subsonic rounds and are made the most effective when applied with a suppressor device. 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. Besides several Blackouts I shoot with short bbls and suppressed, I also have some 16" rifles. by 300Blk Mon Feb 06, 2012 9:00 pm, Post I've been tying to keep an eye on 300BLK supersonic development, for me what comes out of supersonic in the next months will tip the scales on whether I go 308Win or 300BLK on my next purchase. The supersonic, though, needs a gas port positioned at seven inches forward, standard carbine location. Post Based on these points, for stopping a human target as quickly as possible, what would favor the subsonic .300 over the 45? Shooting quickly and quietly is not always as important as shooting flat with the appropriate ballistic energy to put down your target effectively. Why run subsonics without a suppressor? -300BlkTalk ZTAwMjMwYmQ2M2ZjMTc1ZjMxYzkwMGE2NzlkNjg2NWRkZWNhZTFkZmJmZDNm A suppressed supersonic load will have a lot more gas coming back into the action compared to an unsuppressed subsonic load (these two examples are the extremes). The XTP bullet in Subsonic Handgun has built a world-class reputation for accuracy and stopping power. Frangible is best for the indoor range. Home Ammunition Subsonic Success: Getting Good Function From a .300 Blackout. I reload all my stuff so factory ammo prices aren't a consideration for me. With bullet weights in the 190-220 grain range, and a muzzle velocity below 1,100 FPS, 300 Blackout is one of the best cartridges for shooting subsonic rounds. Hornady Subsonic Ammunition designed for accuracy and performance below the speed of sound now comes in both rifle and handgun loads. It's that quiet. Subsonic 300 Blackout ammo is effective for the former two characteristics but falls short in almost every other category: effective range, terminal ballistics, bullet trajectory and cost efficiency. I have it specifically because I don't want to hunt deer with a 5.56, and it's the easiest cheapest conversion for a AR-15 to make it a viable hunting rifle imo. You are using an out of date browser. Centerfire shooters looking for ultimate quiet will often reach for 300 Blackout subsonic ammunition. background-color: #ffc107; Subsonic Success: .300 Blackout Function - The Shooter's Log 300 BLK is known for subsonic performance but one cannot discount the great performance of supersonic offerings as well. . Lucky or good Im not really sure which, but Ill take it. You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers. The armor was going to charge me a lot of money to find the problem until CMMG tech support told me. So whether you're hunting hogs, punching holes in targets, or just playing pretend in your basement, we aren't here to judge. The .300 AAC blackout has the advantage of having a more effective shape for delivering energy, expanding, and tumbling through vital organs, but it's main advantage while subsonic is it's quiet report, and the ability to make multiple hits on target very rapidly. I also do not like the lack of adjusting information. Please keep it civil people. To make the latter work, the . On the other end of the spectrum, use of a supersonic load like the Federal 120g Trophy Copper at 2100fps, will result in projectile expansion to approximately 1.5x the diameter of the bullet, and greater terminal effect. The industry standard for supersonic ammunition is set at around 1,100 feet per second at sea level under standard conditions. If no SBR, do an 8" pistol. Being able to start a fight quietly, and then with a quick change of a magazine, you can have a full-power round. The Mission of Cheaper Than Dirt! line-height: 1.5; Instead of just yelling at the clouds, I thought we could bring in a few experts in the field of ammunition development and ask them for their thoughts on the matter. Is .300 BlackOut Subsonic unsuppressed significantly quieter - Reddit They are also more likely to be available than subsonic round stocks. If not, and you need to hit targets at distances past 3-400 yards then opting to shoot 5.56 NATO instead will save yourself some money. This purpose excludes taking down big game effectively and ethically. Thats port pressure. Not technically the same as chamber pressure, but its from the same source. document.write(new Date().getFullYear()) Copyright Hornady, Privacy Policy | CCPA Request | Accessibility Policy | Terms of Use, Designed and developed by IdeaBank Marketing. These lowered stats can result in unethical game kills and can lead to animal suffering even if you think you made a clean shot. Not sure what diameter gas port it has My Problem - Supersonic rounds = seem to function fine / no problems NzAxZTZjNWI1YTkzYjU4MzU0Nzc0YTU2MjFmMmYyNGQ0OTk3N2ZmN2QzYmZh 300 blk shines brightest when its suppressed right? I dont like running a valve on anything but a rifle-length system. Supersonic .300 Blackout ammunition replicates the ballistics of 7.62x39mm, used by classic AK pattern rifles, but with cartridge dimensions designed with the AR-15 magazine in mind I enjoy them just as much as the short ones. Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. Subsonic 300 Blackout holds more power than 919mm while retaining equal ratings of decibel while suppressed. For those with a suppressor, the American Eagle 220g will provide a heavy projectile that when suppressed, is easy on the ears, which is important for close quarters that one may encounter in a home defense situation. One reason for its popularity is the supersonic/subsonic option. ZTUzMjk3MjYzOTAzZDg3ZjhhZjFiNTE1NjY0MjJlN2Q3NTc3YjUzNDE4ZWFm You don't have an "issue" with your 300blk if it won't run subsonic ammo UNSUPPRESSED! If I couldn't do short with 300blk I would have zero interest in it. In fact, SOF Operators have reported shooting terrorists in one room of a house, and not having woken up bad guys sleeping in adjacent rooms. If you want to be ninja quiet, then shoot subsonics. Sub Sonic Ammo out of an Unsuppressed 300 Blackout - YouTube One trick to get reliable subsonic function in a gun thats been built around more ideal supersonic function is lightening up the back end of the system. Save the heavier and stouter parts for supersonic. Anything more and I get FTF,FTE. Suppressors - Subsonic 300 Blackout Suppressor Short Can Short List Now I understand better, what Ill need to do if I want to run subsonic (the upper kit I purchased is set up for supersonic). FNG / New Forum Member today, registering just after my first range session with my new SA SAINT .300 Blackout pistol. ZDQ4OWNkM2RjMTljNGVkNTc1ZjhhYmNjYzdlY2JhZGU0OTQwY2QzMjM5ZjU0 by doubloon Fri May 27, 2011 9:49 am, Post I dont like that I need a tool and I hope someone makes one that is finger adjustable or at least adjusted by using a round. Shopping with us is absolutely safe - you never have to worry about credit card safety when shopping here Share your latest AR build or photos from the range with #RangeDayFriday for a chance to win a new firearm! ZmFhY2U2NzcyNzJhN2Q2YzJkN2FhYWEwMzYwMDBjOTY0ZmFjMGE1NzMyNWIx For close range pig-hunting, it's a game changer. - And the Mode 3 screw allows a varied amount to gas to be used in cycling, and the correct amount of gas (and the setting of the AGB) is dependent on correct cycling, using the procedure outlined on page 35? 300 Blackout 9" Noveske Barrel (pistol length gas system) STAG Upper and STAG Lower ? 300 Blackout Subsonic Subsonic rounds hold one key advantage, they run really quiet when suppressed. Interested in picking up your own suppressor device? .223/5.56 is what you should buy. If you do use subsonic, make sure you know what that projectile is going to do at those slow speeds. Even the small .22lr breaks the sound barrier, and gives a small sonic crack. Subsonic rounds have about the same energy on target as a .45 ACP round. The giggle factor of subs, suppressed on a SBR is way up there. In general, most people prefer a self-defense rifle bullet that expands rapidly and doesnt over-penetrate so that bullets wont travel through multiple walls or similar structures. As others have pointed out, if you're going to take the longer barrel and not suppress it (or shoot supers suppressed) then there are other calibers that work well in the AR15 platform and give better performance. MTk0M2U1ZTMxOGQyNTJjOTE5YzU1MTJiZjA2NTkwZDJkNWU2OTBiM2IzYTMw That said, the 30-30 has killed more white tail deer in North America than all other cartridges combined. Whats more, subsonic ammo is a good deal lower pressure than supersonic ammo, which has a SAAMI max limit of 55,000 PSI (most is around 50-52,000); most subsonic loads are running 30-35,000. Posted: 1/25/2015 10:31:10 AM EST. NDNkYTI4NTI2ODg2OGViYTk3ZjNlZTZlOGRjMzQ0NjdiN2E1Mzg1YzlkZjUx It doesn't mean it isn't perfectly effective, just that you're not taking advantages of what makes it special. On the other hand, supersonic offerings, when combined with suppression, will still conceal ones position and affords longer range lethality due to flatter shooting, lower weight bullets. Until I started reading forums, I was unaware that .300BLK is expected to not cycle in a 9" unsuppressed rig, so I wanted to make it work properly with the only available ammo. Supersonic 300BLK can have nearly three times the kinetic energy as a subsonic 300BLK. Been kicking around the idea adding a 300 Blackout into the mix, yet state laws do not allow for SBRs or suppressors. Fixed gas block and std buffer spring. YjYzYTFjNjg3ODIxNzc4MTIwMDYxZmFlYjc5YjAzZjQzODIxYTUzNTYwZDlj eyJtZXNzYWdlIjoiMDc2MjAyNzUzMDYxOWMyOGNiMTAyYTBjMWQ0N2UxNDQ2 YTUxMmIyNTZhYzgzN2I2NjhlZGE3YWZjMTQzMmM2MDUxNDIyNWM2NWRhYzkx MGQ3NDgzZjU3MzUxOGM3ZmI4ZGY1NWNkMjkwNDhjZTZkZTU2YjI4MDk3YjU3 Based on my work it's very tricky to get subsonics to cycle a standard-length XCR-L action, even . ODE1ZDM1NjM4Zjc1Yzg1OGZlODViYzdmMGM1Y2RkZWI1NDVhODQxZjI4YmRl AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. If you are going to reload the 6.8 is a much better wildcat supersonic round for the AR. You might get away with it for a subsonic setup as described here, but since its so close to the chamber, the gas is at full fury and will wreck the valve apparatus in short order (flame-cutting). 300 Blackout Supersonic vs Subsonic - What is the difference? 300 Blackout Ballistics Test Results. It was frustrating having so many issues with subsonic rounds and I had no interest or desire to get a suppresser. ZmUxYmM0MjAwZCIsInNpZ25hdHVyZSI6IjZiNGY3ZjE4ZWI4NWIwNmFlNTli Your email address will not be published. Sub Sonic Ammo out of an Unsuppressed 300 Blackout Young and Tactical 3.49K subscribers 213 25K views 3 years ago In this video Trent shoots his 300 blackout to see if it can run sub. A bullet traveling at higher speed means more energy that can be transferred to the target upon impact, more effective range, more tolerance to drop and wind drift. Fact is, they are not out just yet - so you probably need a 5.56mm upper for now. If not, and you need to hit targets at distances past 3-400 yards then opting to shoot 5.56 NATO instead will save yourself some money. Expanding subsonic bullets have almost twice the material to work with which allows them to expand much larger than lighter expanding supersonic bullets sometimes as much as three times original bullet diameter with machined solid copper. YTZjMjk4NWM1MTdlNTA0ODc1NTQ5ZmRkODE5MzkwNjAyNmQwZTc0M2RhOWY2 The speed of sound (in reference to how it travels through air, like a bullet) is approximately 1,100 feet-per-second (fps) at sea level. You are supposed to shoot super Sonic on the lower setting and use the higher one for shooting subsonic without a suppressor. }, Editor In Chief- TFB No room for a dissertation on gas system operation, but as the gas expands behind the bullet traveling down the barrel bore, an increasingly greater volume is available for the gas to occupy. If you do plan on shooting suppressed or aiming at targets within short distances then proceed with the 300 blackout platform. Understatement: .300 Blackout (aka AAC) is a popular cartridge among AR-15 fans. Winchester Super Suppressed Ammo 300 AAC Blackout Subsonic - MidwayUSA Is 300BLK worth it in supersonic unsuppressed ONLY appl.? -300BlkTalk I don't have a single SA rifle of any kind, so all I do is read other peoples post about any SA rifle (M1A and other AR types). It cracks me up, that the 320 pound, crisco leaking computer chair army speaks of subjects that they "read" on the internet. Versus 6.8, you're not gaining anything but diameter. Reason for that is because the 300 BLK uses almost all the same AR parts used for a rifle chambered in .223/5.56mm. Y2ZiMWUwMjljYjc2NjMyZDRjOTA0ZTkxMzk2MGEzMWVmMjFmYWVlOTdjZjFm Most subsonic blackout ammo uses a bullet in the 200-grain range, and, of course, .308 diameter. This setup will should work excellently with subs and supers, suppressed, suppressed, and any other situation you can throw at it.. Mostly correct. Your discussions, feedback and comments are welcome here as long as they are relevant and insightful. We will promptly replace or repair any product that we determine to be defective. Whatever you shoot at will be able to know theyre being shot at immediately and they'll react appropriately. On the contrary, YouTube some videos on 300BO performance and you may be surprised. SILENCER SATURDAY #37: Subsonic 300BLK Shootout. https://www.youtube.com/watch?v=Dh7Apv8YyVM?t=5m39s. Generated by Wordfence at Mon, 1 May 2023 8:13:48 GMT.Your computer's time: document.write(new Date().toUTCString());. Nzk5NTZjMWJjMmY4OTNkODk0YTM1MGMxZjZiM2FiYTdiNTIxZjM4MmI0ODhi If you're looking for "Hollywood Quiet", these are the loads you want to be shooting. *Must have a registered ARFCOM account to win. Subsonic 300 Blackout rounds perform extremely well for their intended purpose. I cut a couple even with my shorter gas system on the subsonic. On a different day, I traveled to a suppressor-friendly state and met up with . Theres not enough gas in subsonic, or theres too much gas in supersonic, for both to function through a system set up more ideally for one or the other. I think that's what OP is after. No it is NOT worth it unless you are going to go shorter than 10.5". If you have any interest in shooting quiet be it with a suppressor or not (subsonic 220gr is a little louder than a .22 unsuppressed) the 300blk is THE BEST subsonic/supersonic rifle available. I love my 300 Pistol. Not my thread, but I think I was just sold in what to do with my resent acquisition. Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. Subsonic 300 Blackout Ballistics - Velocity & Gel Test Results An AR-15 carrier is about a half-ounce lighter (though it varies with each manufacturer), and, working within this world of milliseconds, that matters. We reserve the right to edit as appropriate, delete profane, harassing, abusive and spam comments or posts, and block repeat offenders. I had read those can cause more fed issue than FMJ in the AR platform. I am planning a .300 BLK as soon as the XCR is available, and I am only interested in subsonic/suppressed. Run a pistol-length location gas port (four inches ahead of the chamber area) with a carbine-length (16-inch) barrel. The loudest factors from using suppressed subsonic ammunition comes from the sound of the bullet impact and the bolt carrier group cycling back and forth (when using AR platforms). I was waiting until after the SHOT SHOW before I bought a suppressor to see what new thing came out. So if youre set on trying out 300 Blackout yourself, complete a build with your own 80 percent lower receiver today with an easy to use universal. I happen to be one of those people. Interested in picking up your own, Pandemic pricing is not over yet so if you are already an AR-15 owner, it's won't take much more for you to be able to start shooting 300 BLK. AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types. ZmU3NWNhNWM4YjFjYWNjMTMwNTE4MTRlZjNjNzhiNDE2MTgwMzE3NmFhZmUz Forget about cut brass. Go 300blk pistol. [ARCHIVED THREAD] - 300 Blackout, is it worth it if you can not go short or suppressed? Optimal performance is guaranteed if you run the barrel unsuppressed with supersonic ammo or suppressed with subsonics. I have a feeling I know how most of them will answer, but Ive been wrong a few times in the past. Essentially, all you'd need is an upper receiver with a 300 blackout barrel and you'd be good to go since the 300 blackout magazine is the exact same as normal STANAG/NATO magazines. Designed for the purpose of close quarter combat for Special Forces, .300 BLK excels greatly with short barrels (barrels as short as 9 inches) and dispenses .30 caliber projectiles with a greater muzzle velocity than 7.62x39 mm which creates a larger wound cavity. How Loud Is A 300 Blackout Without Suppressor? Update New It's been metered and subsonic .300Blk is far quieter. I had ran the scenario of a suppressed subsonic .300 blackout against a suppressed 45/45+P (still subsonic). If I couldn't suppress or SBR, I probably not even go with another AR. If your reloading you shouldn't have to worry about what the manufactures are focusing on with the supersonic. Yes it does shine suppressed. ZDJlOTQ0YzNkMDAyZTc2YjY5MWFjY2Q4MzIxOGVlNTAzYTQ1ZWZlMmU0MTQ0 At 200 yards, the 60.5 inch bullet drop of a .45 round is similar to a .300 Blackout subsonic round. Suppressing a supersonic round does a great job of protecting your hearing, but you'll never get the Hollywood effect. by JasonAAC Fri May 27, 2011 10:14 am, Post Shooting 300 Blackout Suppressed and Unsuppressed cursor: pointer; A combination of 300 blackout subsonic rounds and a suppressor device means being able to retain all your senses in an outdoor environment while even dumping your magazine includes the added benefit of not disturbing others within the area. Do yourself a favor and get one you deserve it.
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