I think carbine length systems and 16 barrels are part of the problem with .300 blk. 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. Brad Criner, Senior Director Sig Sauer Ammunition. Y2JlY2Q1YmJhNWYxMjYxZTFhNDI1Yzg0N2U1MmMzZGJlY2U3MTk5ODY0MTdk There is no noise from the action or any created via the ejection process as noticed in a semi automatic firearm. This gun has shot subsonic and supersonic suppressed and unsuppressed flawlessly through 2500 rds min. For those 'go loud' engagements you could opt for supersonic rounds to take the ballistic advantage of full power rounds. Forget about cut brass. ZTUzMjk3MjYzOTAzZDg3ZjhhZjFiNTE1NjY0MjJlN2Q3NTc3YjUzNDE4ZWFm It is still fun to shoot, even though i now have an 8.5" sbr suppresssed. ZDQ4OWNkM2RjMTljNGVkNTc1ZjhhYmNjYzdlY2JhZGU0OTQwY2QzMjM5ZjU0 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. For a better experience, please enable JavaScript in your browser before proceeding. Use factory loads and factory brass for reloading. Optimal performance is guaranteed if you run the barrel unsuppressed with supersonic ammo or suppressed with subsonics. My research turned up the fact that without the ability of the high velocity of a supersonic .300 to transfer hydrostatic shock you will merely be punching .30 caliber rounds through your target. NmYzMzU2MjU0YmYzZjg4NDg1MTU4MWE0NDc4ZWUyODcyZTAwNjVhMmQxMjcy Reason for that is because the 300 BLK uses almost all the same AR parts used for a rifle chambered in .223/5.56mm. And a small percentage of you claimed that using a 300BLK AR15 in a life or death situation was nothing more than a mall ninjas wet dream. These two factors make suppressed supersonic rounds very effective and an attractive choice in confined close quarter environments. I also have not put many thousands of rounds through it and I havent checked it for wear. Given your situation, a "pistol" setup may be in order. I keep seeing guys new to the 300 BLK on other forums asking about how to open gas ports to reliably run subs without a suppressor and I just don't get it. This is about the only time intentionally ramping up gas port pressure is ever welcome on an AR-15! 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). But while energy transfer is very important it does not tell the entire story. .btn { If you want a combat rifle with a hard-hitting round, .300blk has you covered. Supersonic is your traditional rifle round. 300blk is still loud af even when subsonic. SILENCER SATURDAY #37: Subsonic 300BLK Shootout -The Firearm Blog .tfb-affiliate-link{ Subsonic 300 Blackout rounds perform extremely well for their intended purpose. Product Features PROVEN PERFORMANCE Performance of 300 Blackout Subsonic meets or exceeds FBI Protocol terminal ballistic test requirements. Any bullet thats built to either fragment or readily expand (not the same things but about the same effect) isnt going to get much farther after it meets a solid object. There are some loads on the market that do expand at subsonic velocities, but in general they still wont expand as rapidly and violently as a supersonic load will so penetration may still be an issue. NWY3ODNkODRmZWU0NTQ5OTY4OWFkNDE5NDExZjE4ZTZmN2JmZjI0YzRhMWFh 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. Yes. We utilize state of the art 5-axis CNC machines to mill all our .308 and AR-15 80 percent lower receivers to incredibly precise tolerances using premium billet aluminum. Based on my work it's very tricky to get subsonics to cycle a standard-length XCR-L action, even . 300BLK comes in two flavors: supersonic and subsonic. The price of subsonic 300 BLK now averages $1.15 - $2.85 per round (Consider this cost if you plan on using subsonic 300 BLK to shoot follow up shots rapidly on target). vertical-align: middle; 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. YzhlYzAxNTM3YjA3NjI5MDM0NTA1YzlmOGIyMjE1NzhmYzcyMDYzZGYwZGNm It's that quiet. So, being new to AGBs, here are my few thoughts and what I think I've figured out on their AGB. 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. In the review on the MCX from ammoland the author says, "We experimented with a variety of 300 Blackout ammunition. So this brings me to my final points/questions. I load 110gr varmint tips at 2600fps and 125gr hornady sst's at 2400fps for hunting, and everything up to 240gr sierra's for plinking and/or subs. Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. Same with the 16" 7.62x39 upper I got from PSA. An M1A would be cool too have, but going custom on my first buy. ZmFhY2U2NzcyNzJhN2Q2YzJkN2FhYWEwMzYwMDBjOTY0ZmFjMGE1NzMyNWIx 300 Blackout Ballistics Test Results. The XTP bullet in Subsonic Handgun has built a world-class reputation for accuracy and stopping power. Anyway, read through the responses below and let us know your thoughts in the comments section. Theyre not normally as overt, but theyre thereextra-quick bolt unlocking, excessive carrier velocity and on down that list. 2023 Modulus Arms | 80% Lower Receivers and 80 Lower Jigs. Subsonic rounds have about the same energy on target as a .45 ACP round. 300BLK is the most versatile centerfire cartridge in existence and an excellent HD choice. M2UyMzRiN2ZjNmVlNjc2MzVhZWYxY2YyZTc3NThhMDkyMjY3YjllMDhkNGJm Bleed off/non restrictive, finger adjustable, battle proven, reliable. MmI2MDAzY2VkZmQ4MzZiZmU1OWQzZjU2ZDIxMmM4OTBjMGM2NDQ3YWEzNTUz Final one was with a 5.56 Ruger American Ranch Rifle. 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. 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. At 200 yards, the 60.5 inch bullet drop of a .45 round is similar to a .300 Blackout subsonic round. 300 Blackout Subsonic Subsonic rounds hold one key advantage, they run really quiet when suppressed. Subsonic Handgun utilizes tried-and-true XTP bullets that expand reliably at subsonic velocities. I dont know how many have fired a 5.56 AR-15 carbine inside a room, but its sensory overload. NDJlODc5Y2JiNmNmNmJjNGExOWVjOTI4NGQ2MDYzOGMwNTkwMzU3MmFmZDM1 7.62x39 has more power and cheaper ammo than 300blk. .300 Blackout, Supersonic vs Subsonic - 80 Percent Arms 300 Blackout: Shooting with Subsonic Ammo - Silencer Central Y2I4ZjgxMDJmNDg1ZGMwMzQ2NzFmN2E5YTcwZDQwZTViYmU5MDc5ZGE3OWU0 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). Probably the most prolific in recent years is the .300 blackout, designed specifically to accommodate both subsonic and supersonic loads in the same rifle with minimal adjustments. Without the velocity of supersonic rounds, subsonic 300 Blackout rounds are not able to routinely make clean shots against large game. We will promptly replace or repair any product that we determine to be defective. Subsonic 300 Blackout holds more power than 919mm while retaining equal ratings of decibel while suppressed. Suppressors - Subsonic 300 Blackout Suppressor Short Can Short List I still can't find supers most of the time. MWZhMzE4M2MxNmUzYTg2YmQxN2ZjMWFjOWY0ZWFjYThkZTNjZjU0NzJiZGEy If your reloading you shouldn't have to worry about what the manufactures are focusing on with the supersonic. Do yourself a favor and get one you deserve it. -moz-user-select: none; No big surprise guys but Short barrel+weak ammo+ no backpressure=shit reliability ps. Product #: 417076. But if you are spending close to $1 per round for quality factory ammo, I thought it might be a good idea to take a look at some actual decibel meter comparisons between between top brands. Always (always) keep in mind that were operating in a world of fractional milliseconds defining too much and not enough, and hotter and cooler.. First, compared to the .223 Remington, you're launching a larger caliber and heavier bullet at supersonic speeds. Thank you for a clear and consisce desciption. Any use of this content without express written consent is prohibited. The idea that you can have a single setup of buffer mass, gas port size and gas system length that will handle 28kpsi unsuppressed subsonic loads and suppressed 55kpsi supersonic loads equally well is ludicrous on its face. AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types. I have multiple 16 inch barrels in 300BLK and they work perfect. 300 blk supersonic unsuppressed SBR for hunting - AR15.COM If I was not into NFA items I would not own a BLK rifle. Is 300BLK worth it in supersonic unsuppressed ONLY appl.? Most factory .300 Blackout subsonic loads are a little more powerful than a routine .45 ACP handgun loading, if were going on (the admittedly incomplete) calculated energy figures. The Shooter's Log, is to provide informationnot opinionsto our customers and the shooting community. That really all has to do with bullet design/bullet engineering. Subsonic is also preferred where the hunter wants to limit the maximum range of projectiles. From experience the .300blk subsonic is an amazingly fun round to shoot suppressed and it's the only way to shoot it reliably, but it's well worth it! [ARCHIVED THREAD] - 300 Blackout, is it worth it if you can not go short or suppressed? Reloading lets you use most all of the bullet types from 110 grains to 175 grains or so. I have an SBR as well in 300BLK which is more fun but when traveling out of state it's easier to just take my 16". If you believe Wordfence should be allowing you access to this site, please let them know using the steps below so they can investigate why this is happening. Additionally, the lighter recoil also allows users to make faster hits on target in succession. Shooting 300 Blackout Suppressed and Unsuppressed From heavy subsonic loads to supersonic rounds, both with and without the silencer attached; we experienced no malfunctions of any kind". 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. So while someone may not be able to pinpoint where they are being shot at from, they're still going to be very aware that they ARE being shot at. In keeping with this motif, an AR-15-style bolt carrier works best with subsonic. I had read those can cause more fed issue than FMJ in the AR platform. Having said that, that doesn't necessarily mean that a shooter can't enjoy the benefits of reduced muzzel signature just because they can't or won't own a supressor. The Sub-X bullet used in Subsonic Rifle features a lead core. Even though you may not be sneaking through houses in Syria, being able to walk around or hunt without EarPro and not have to worry about your hearing if you take a shot has significant advantages. - 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? The 110gr Barnes TAC TX are great hunting bullets, and while we could argue all day about ballistics, you can't argue that the 300BLK is the simplest conversion and its effective. Be first to know about promotions and new product launches. In the dark, maybe just up out of bed, and then theres a blinding fireball and an ear-splitting report, and its difficult to recover situational awareness, especially at my age, and even with my rail-mounted light. Versus 6.8, you're not gaining anything but diameter. First, Im always willing to risk boring knowledgeable readers with really basic information because its important to start at the start. Differences Between Supersonic and Subsonic. So, if you think .45 ACP is a reliable choice for a defensive round, subsonic Blackout beats it. TNVC/NGI Giveaway: 15 winners with over $7000 worth of prizes!! You don't have an "issue" with your 300blk if it won't run subsonic ammo UNSUPPRESSED! Besides several Blackouts I shoot with short bbls and suppressed, I also have some 16" rifles. This will add versatility and a broader range of uses for this great platform. If I could not go suppressed, I'd pick another caliber. Even the SOF guys will still do 99% of their gunfighting with supersonic rounds. Just recently purchased a pistol upper kit for thr build Im working on. To make the latter work, the . Second, you have the. What's louder unsuppressed? 9mm vs. 300 blackout (subsonic) Shooting quickly and quietly is not always as important as shooting flat with the appropriate ballistic energy to put down your target effectively. I enjoy them just as much as the short ones. Btw: Supersonic ammo is also a really bad idea because of the VERY loud report and large muzzle flash. 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. We want you, our readers, to be able to make informed decisions. Manufacturer #: SUP300BLK (20) UPC #: 020892224483. Running subsonics out of a 16" gun and suppressed is almost hollywood quiet. 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. Here is a great example of shooting 300 Blackout suppressed and unsuppressed using supersonic and subsonic ammo from Class 3 Ordnance. The backpressure will not be enough to run reliably (if at all), and the accuracy will will also suffer. The setup was equipped with a Trijicon AccuPoint 5-20X50 scope, dialed to 20X. Suppressing a supersonic round does a great job of protecting your hearing, but you'll never get the Hollywood effect. One of .300 Blackouts greatest edge is the seamless ability for rifles chambered in this caliber to efficiently transition between subsonic ammo and supersonic ammo. 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. Not my thread, but I think I was just sold in what to do with my resent acquisition. Supersonic ammunition will provide more range, energy delivered on target, and less drop or wind-drift at range. I like 6.5G and 6.8 alot as well, but the mags and bolts are annoying and more cost. 300 was designed to fill the short and quiet roll. 220gr .300 Blackout is extremely quiet, and competes with the famous MP5-SD in terms of stealthiness. Unsuppressed 300blk Subsonics : r/300BLK - Reddit Others chose faster and lighter rounds because its a rifle, not a pistol. 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. A heavier buffer and spring, or an adjustable gas block, can provide the cushion the supersonic needs to avoid over-function.. NetJnkie 6 yr. ago Oh duh. One reason for its popularity is the supersonic/subsonic option. Subsonic Blackout has a radically milder blast and report than 5.56 or supersonic Blackout. The supersonic and subsonic bullets draw their names from how they each respectively relate to the sound barrier. by hugegator Mon Feb 06, 2012 7:34 pm, Post Unless your 300 is just going to be a range toy, the cost savings isnt worth the risk. Please keep it civil people. This purpose excludes taking down big game effectively and ethically. Thoughts or ideas? Your discussions, feedback and comments are welcome here as long as they are relevant and insightful. Almost forgot about ammo. Depending on the load, some 300 blackout subsonic rounds are quiet enough to comfortably use without ear protection. OK, so it is a ridiculous thing to open up ports and basically ruin perfectly good barrels. Shooting 300 Blk unsilenced | SIG Talk 6.5 or 6.8 either one beats the 300. MGQ3NDgzZjU3MzUxOGM3ZmI4ZGY1NWNkMjkwNDhjZTZkZTU2YjI4MDk3YjU3 300 Blackout, is it worth it if you can not go short or - AR-15 If there's no can then this is a dumb argument. background-color: #ffc107; It just so happens that my SOT has such a range and allows me to shoot my 300 BLK subsonics but not supers. Actually by far the most work being done for 300 BLK is supersonic. I have AR's in .22, 9mm, x39, .223, 6.5G and .308. I've thought about building a .300, but don't see the need.. 300 Blackout, hype or worth it? : r/ar15 - Reddit Interested in picking up your own suppressor device? Basically run it like a subgun. Yes it does shine suppressed. Hornady Subsonic Ammunition designed for accuracy and performance below the speed of sound now comes in both rifle and handgun loads. ODE2NzBiY2U5OTUxNjZhZTJhYmFkOTZlNzc1MDdhMDdmNmRiMTEzZDRmZWI0 The pistol-length-port location requires the least amount of post-build tuning to get 100-percent reliability. Suppressed .300Blk is under 120db and easily hearing safe. 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. On my build, I chose to accept the one-trick-pony approach. margin-top: 6px; I dont like running a valve on anything but a rifle-length system. } I see you have some rounds made to expand in this article. I like the x39 because I can blast cheap steel cased ammo and not have to scrounge for brass. All comments are held for moderation and will appear after approval. Hopefully, this thread will have a few more good responses and I'll just post a link to this discussion whenever a new 300 owner decides to ruin their barrel. .300 Blackout is an intermediate caliber that performs with a better ballistic capability than 5.56x45mm while retaining the same round capacity using a standard M4 magazine. So while many believe .45 ACP to be the mighty fist of God, we know today that pretty much ALL handgun rounds are pretty terrible at stopping threats. Sign up to receive new product announcements, special offers, and the annual product catalog. I also do not like the lack of adjusting information. There is Barnes RRLP in 300 BLK, though it may end up as LE/Mil only. That' If I couldn't do short with 300blk I would have zero interest in it. Discussion about rifles in 300 AAC BLACKOUT (7.62x35mm), hosted by the creator of the cartridge. }, Editor In Chief- TFB Does some damage with Barnes vor-tx bullets. Full Feature: Anderson Manufacturing Kiger 9C Pro 9mm, Throwback Thursday: 5 Long-Slide Pistols I Can't Live Without, The History Fixed and Adjustable Iron Sights, Rifle Hack: Sighting for 100 Yards at a Distance of 25 Yards, Throwback Thursday: All About Bullet Grain. Your access to this site was blocked by Wordfence, a security provider, who protects sites from malicious activity. I have a feeling I know how most of them will answer, but Ive been wrong a few times in the past. Subsonic rounds hold one key advantage, they run really quiet when suppressed. There's a big assumption here that everyone can actually own supressors. NDNkYTI4NTI2ODg2OGViYTk3ZjNlZTZlOGRjMzQ0NjdiN2E1Mzg1YzlkZjUx As supersonic ammo means using a lighter-weight grain (typically less than 180 grain), theyre no doubt the less expensive choice of rounds to train and plink with. 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. Ask The Experts: Subsonic Or Supersonic 300 Blackout Ammo Against So, despite what Ive heard from many theorizing, you really cant run supersonic and subsonic loads through the same gun, with no modifications having been made to the gun. I can say that it hasnt seized up the way other restrictive style blocks have, and I feel thats a good sign. 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. Due to the higher velocity, you will encounter much louder report regardless of a suppressor, due to the supersonic crack of the bullet. Subsonic rounds hold two advantages over supersonic rounds: quietness and less recoil. 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). First, supersonic ammunition was tested unsuppressed through a custom AR-15 pistol with a Brownells 10.5-inch .300 Blackout barrel with a 1-in-8-inch twist rate. You dont have an issue with your 300blk if it wont run subsonic ammo UNSUPPRESSED! .btn:not(:disabled):not(.disabled) { Would have spent my money on a Garand or old levergun. Although still considered to be on the higher end of the price spectrum, supersonic 300 BLK is the slightly more affordable option sitting at $0.75 - $1.15 per round. Frangible is best for the indoor range. SAINT .300 BLK Pistol: will it function unsuppressed with subsonic ammo It gives one performance close to that of a .308 Win in a more short action such as the AR's have. 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! Done like that, the relatively tiny amount of fast-burning propellant behind that honking .30-caliber bullet gets put to work effectively because the pressure at the gas port is higher. The only reason I did a BLk was an 8" barrel and suppressor. Hornady Subsonic Ammunition doesnt have the loud report of a supersonic round, and paired with a suppressor, its even quieter. Unsuppressed, a significant muzzle flash will occur that may hamper low light visibility, the report may cause hearing damage and temporary disorientation. The first question to consider before you ask if you ought to use 300 blackout supersonic vs subsonic is whether or not you plan on shooting suppressed. I let my son shoot my 300BLK AR, subsonic unsuppressed, when I forgot to pack his .22 on one of our trips to the range. } Copyright 1996-2023 AR15.COM LLC. All in Favor of a 300 Blackout Pistol | OutdoorHub It has a adjustable gas block with two settings, smaller opening and larger opening. These lowered stats can result in unethical game kills and can lead to animal suffering even if you think you made a clean shot. 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. Thats another debate for others to work through in other articles, but its my story and Im sticking to it. That's why I have 3. 300 Blackout Supersonic vs Subsonic - What is the difference? 300BLK comes in two flavors: supersonic and subsonic. My SIG MCX Virtus 9" 300 blackout has about 300-400 rounds through it. It's been metered and subsonic .300Blk is far quieter. You seem to have found a sweet setup in this article that does not have any feed issues. Reason for that is because the 300 BLK uses almost all the same AR parts used for a rifle chambered in .223/5.56mm. Fact is, they are not out just yet - so you probably need a 5.56mm upper for now. For the love of goodness gentleman, I wish I didnt have to make this post but Ive seen about 10 on this subject in the past week. 300blk subs are POINTLESS to run without a can, they're still loud, less effective and unreliable, with a can yes they are super quiet and badass. MjgxYmJjNjRlYjU0NTA4Y2QxZmMxNmNkZjVlOTUzM2M2YzUyYWZkM2E1M2U3 You are supposed to shoot super Sonic on the lower setting and use the higher one for shooting subsonic without a suppressor. If you're looking for "Hollywood Quiet", these are the loads you want to be shooting. Just a bit about the whole defensive rifle debate: some say something like 5.56 is not a good choice for home defense. 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. There's no purpose in running subs uncanned. UPDATE: SUBSONIC CYCLING ISSUES -300BlkTalk Go 300blk pistol. The value of the 300 Blackout boils down to two factors. by doubloon Fri May 27, 2011 9:49 am, Post 5 Best .300 Blackout Barrels | invoqe 300 Blackout 190 gr Sub-X Subsonic - Hornady Manufacturing, Inc Subsonics are expensive and their performance is marginal compared to supers. If you do use subsonic, make sure you know what that projectile is going to do at those slow speeds. 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). .300 Blackout Subsonic Success Tips - The K-Var Armory NjZlZTcwZjdmYjA0OTI3OTM0OTcwZmVlOTk5ZjFhOGJhNDRiZTY0MDE4MWJh For anything larger, or at distance, we would recommend going supersonic. [img]http://i203.photobucket.com/albums/aa221/toobmonkey/MedSig.jpg[/img]. You must log in or register to reply here. I owned a SA 300BO Pistol and I wont say your wasting your time but I sold mine for that and other reasons. I got into .300 BLK because it excels in short rifles and has subsonic ammo for suppressor use. This list is our best 300 Blackout Subsonic ammo, you can check out all subsonic 300 Blackout ammo here. by jason Mon Feb 06, 2012 7:58 pm, Post Subsonics are expensive and their performance is marginal compared to supers. I had it 6 months before I got the silencer and put 500-700 rounds through it.. YjYzYTFjNjg3ODIxNzc4MTIwMDYxZmFlYjc5YjAzZjQzODIxYTUzNTYwZDlj YTZjMjk4NWM1MTdlNTA0ODc1NTQ5ZmRkODE5MzkwNjAyNmQwZTc0M2RhOWY2 Winchester Super Suppressed Ammo 300 AAC Blackout Subsonic - MidwayUSA Is 300 blk worth it unsuppressed? Subsonics cycle with a suppressor almost universally with all barrel makes. I agree, but not for some reasons commonly given.