Post It may not display this or other websites correctly. SILENCER SATURDAY #37: Subsonic 300BLK Shootout. by doubloon Fri May 27, 2011 9:49 am, Post ZTUzMjk3MjYzOTAzZDg3ZjhhZjFiNTE1NjY0MjJlN2Q3NTc3YjUzNDE4ZWFm 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. MjFlNGIwYjNkNjAzOWNhNTg4NTk2Y2VhODViMjg3YmI4OTgwMmExYmVmNDlk Even the small .22lr breaks the sound barrier, and gives a small sonic crack. NDJlODc5Y2JiNmNmNmJjNGExOWVjOTI4NGQ2MDYzOGMwNTkwMzU3MmFmZDM1 Most subsonic blackout ammo uses a bullet in the 200-grain range, and, of course, .308 diameter. The 300 AAC BLK is very similar to the Winchester 30-30 in velocity and energy for equally sized bullets. As everyone does know, it takes most of a year to get the ATF tax stamp approval for a suppressor, which means youre stuck with a pistol that you cant use, without damaging it, for a long time. The truth is that supersonic .300 blackout is absolutely better than subsonic, in all areas but one. -moz-user-select: none; I owned a SA 300BO Pistol and I wont say your wasting your time but I sold mine for that and other reasons. MzEzZWEzN2Y4MzNkYzJlMGFlOGE1Y2Q4ZTA0ZjVhMjEzYTgxNDI4NjAwMGMx I got one just to have another round to play with. AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types. background-color: #ffc107; When I first built a .300, I couldnt get it to run reliably with bolt-over base failures, double feeds, etc. The .300blk round has skyrocketed in popularity the past decade. Supersonic 300BLK can have nearly three times the kinetic energy as a subsonic 300BLK. by 2bad4u2 Mon Feb 06, 2012 11:17 pm, Powered by phpBB Forum Software phpBB Limited. The 300BLK can run both super and subsonic ammo with a change of a magazine. 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). 300 Blackout Supersonic vs Subsonic - What is the difference? JavaScript is disabled. 300BLK comes in two flavors: supersonic and subsonic. This will add versatility and a broader range of uses for this great platform. OUR GST-9 IS UNAFFECTED BY THE LATEST 12/28 ATF CLARIFICATION LETTER & SHIPS IN 3 DAYS! Subsonics are expensive and their performance is marginal compared to supers. We offer several different.300 blackout build kits for whatever your needs are. [img]http://i203.photobucket.com/albums/aa221/toobmonkey/MedSig.jpg[/img]. by JasonAAC Fri May 27, 2011 10:14 am, Post I dont know how many have fired a 5.56 AR-15 carbine inside a room, but its sensory overload. OWEyN2JmMTE0ZGM2MzkxYjdhZDc1N2EzYzNhOGQzY2I4NDNkNTJkYjI1MDcy How to Assemble and Use the GST-9 Infinity Jig. I enjoy them just as much as the short ones. Subsonic rounds have about the same energy on target as a .45 ACP round. Download the app DOWNLOAD Bleed off/non restrictive, finger adjustable, battle proven, reliable. The additional bullet weight keeps the rounds from breaking the sound barrier, and gives them as much energy as possible. 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. 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. MDg4M2FmZmNlODRjODM3ZTQ1MzAzYTNhOGU3NWQ0YzVlOWM2NjcyZGQyMmEw Given your situation, a "pistol" setup may be in order. Product #: 417076. I have multiple 16 inch barrels in 300BLK and they work perfect. Now I want a 16". Subsonic Handgun utilizes tried-and-true XTP bullets that expand reliably at subsonic velocities. It was frustrating having so many issues with subsonic rounds and I had no interest or desire to get a suppresser. We want you, our readers, to be able to make informed decisions. The setup was equipped with a Trijicon AccuPoint 5-20X50 scope, dialed to 20X. These advantages are powerful features of subsonic rounds and are made the most effective when applied with a suppressor device. Depending on the load, some 300 blackout subsonic rounds are quiet enough to comfortably use without ear protection. Anyway, read through the responses below and let us know your thoughts in the comments section. In short a good expanding supersonic 300BLK is always ballistically superior to a good expanding subsonic 300BLK. Discussion about rifles in 300 AAC BLACKOUT (7.62x35mm), hosted by the creator of the cartridge. A can on the end of your rifle is going to cut down significantly on the overpressure at the shooters ear, and can bring the muzzle blast down to more manageable levels. 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. The only issues Ive had with my AAC barrel is THE with cut brass. 300blk is still loud af even when subsonic. Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. "People sleep peaceably in their beds at night only because. I now am thinking it could be dwell time. This caliber has used up all the powder at about 9 of barrel, so it really affects carbine length systems imo. YTUxMmIyNTZhYzgzN2I2NjhlZGE3YWZjMTQzMmM2MDUxNDIyNWM2NWRhYzkx The XTP bullet in Subsonic Handgun has built a world-class reputation for accuracy and stopping power. First, compared to the .223 Remington, you're launching a larger caliber and heavier bullet at supersonic speeds. 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. 300 Blackout 9" Noveske Barrel (pistol length gas system) STAG Upper and STAG Lower ? 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. Subsonic Blackout has a radically milder blast and report than 5.56 or supersonic Blackout. Now, there are some very effective flash suppressors out there, but they dont take a bit off the noise. An argument for another day. 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. ODE2NzBiY2U5OTUxNjZhZTJhYmFkOTZlNzc1MDdhMDdmNmRiMTEzZDRmZWI0 I hope this was helpful, cheers. For close range pig-hunting, it's a game changer. This gun has shot subsonic and supersonic suppressed and unsuppressed flawlessly through 2500 rds min. Such is not the case. These lowered stats can result in unethical game kills and can lead to animal suffering even if you think you made a clean shot. NWY3ODNkODRmZWU0NTQ5OTY4OWFkNDE5NDExZjE4ZTZmN2JmZjI0YzRhMWFh if running nothing special and you just want a 30 bore get a PSA 7.62 x 39 upper kit. It has a adjustable gas block with two settings, smaller opening and larger opening. .btn-warning { Subsonic 300 Blackout holds more power than 919mm while retaining equal ratings of decibel while suppressed. I obviously misread. YTMyZGRiMDU5NDZiNjA1ZmIwMjgwZTgwMWE0ODkxZGYwMzFiZWRjMTU3In0= A supersonic 300BLK round that does not deform or tumble in soft tissue will create only marginally more trauma that a heavier non-deforming non-tumbling subsonic bullet. Thats port pressure. Not technically the same as chamber pressure, but its from the same source. https://www.youtube.com/watch?v=Dh7Apv8YyVM?t=5m39s. I forgot to say, 175 grain 3-gun ammo is being loaded right now - but only 10,000 rounds at first, so none will be for sale. 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 friend of mine likes to hunt with a 16" 300 blk over his 6.8 when hunting everything from deer, hogs and coyotes. 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). It is also great supersonic for hunting. 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. Yes it does shine suppressed. You dont have an issue with your 300blk if it wont run subsonic ammo UNSUPPRESSED! Go 300blk pistol. vertical-align: middle; That's why I have 3. Have you had success getting good function from a .300 Blackout? No. user-select: none; by LYNRDSKYNRD Fri May 27, 2011 8:43 am, Post 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. Without the velocity of supersonic rounds, subsonic 300 Blackout rounds are not able to routinely make clean shots against large game. Subsonic 300 Blackout has some of the best terminal ballistics of any subsonic round. Supersonic ammo can be used with a suppressor device to trap the gasses that exit the muzzle, but it wont be any good for the sound of the projectile splitting the sound barrier. Otherwise, if you're not going to make it a pistol, then just stick w/ 5.56mm. 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. ZDQ4OWNkM2RjMTljNGVkNTc1ZjhhYmNjYzdlY2JhZGU0OTQwY2QzMjM5ZjU0 I am planning a .300 BLK as soon as the XCR is available, and I am only interested in subsonic/suppressed. OTRlZDE0ZDEyNzgwZjIxZjFlZDdhOGQ3YWVlNWJjZjQyZjg4N2Q0YTQwNDhj 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. You are using an out of date browser. Fact of the matter, it is AK ballistics in the reliable AR platform. I have found that the best overall approach to subsonic function is to shorten gas system length. border-radius: .25rem; The can boosts the pressure and affects trajectory. Check out my Youtube Channel, TWANGnBANG. Be first to know about promotions and new product launches. On my build, I chose to accept the one-trick-pony approach. These are not as common now as they once were, but an AR-15 carrier doesnt have as long of a full-profile section on its body as does the USGI-standard M16-format carrier (which is far and away the most common now). If you do plan on shooting suppressed or aiming at targets within short distances then proceed with the 300 blackout platform. Interested in picking up your own suppressor device? 300 was designed to fill the short and quiet roll. Theres a time and place for both technologies and you should practice/zero with both types. Conversely an expanding supersonic bullet will create substantially more trauma than non-expanding supersonic bullets or expanding subsonic bullets. 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. Here is a great example of shooting 300 Blackout suppressed and unsuppressed using supersonic and subsonic ammo from Class 3 Ordnance. 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. Understatement: .300 Blackout (aka AAC) is a popular cartridge among AR-15 fans. NjI2MDFhZjNkMzY1NTA2MTQxNDNlYjJmMDNhNTQwOWM1ODc5MGRhZWY4Njlk I really like the FAL adjustable gas system. MWZhMzE4M2MxNmUzYTg2YmQxN2ZjMWFjOWY0ZWFjYThkZTNjZjU0NzJiZGEy 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. - 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 only real advantages of an expanding subsonic over an expanding supersonic in a home defense situation are (in no particular order): Buy Discreet Ballistics 188gr Selous 300BLK Subsonic. 300 Blackout offers a range of performance, in both supersonic and subsonic loadings. 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. 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. I had been considering the .300 Blackout for a while too. Just a bit about the whole defensive rifle debate: some say something like 5.56 is not a good choice for home defense. So, if you think .45 ACP is a reliable choice for a defensive round, subsonic Blackout beats it. Y2I4ZjgxMDJmNDg1ZGMwMzQ2NzFmN2E5YTcwZDQwZTViYmU5MDc5ZGE3OWU0 Discussion about rifles in 300 AAC BLACKOUT (7.62x35mm), hosted by the creator of the cartridge. In the review on the MCX from ammoland the author says, "We experimented with a variety of 300 Blackout ammunition. I got into .300 BLK because it excels in short rifles and has subsonic ammo for suppressor use. I don't think the 300blk is the best supersonic only round. (Clearly, supersonic Blackout beats it soundly.). For anything larger, or at distance, we would recommend going supersonic. YTZjMjk4NWM1MTdlNTA0ODc1NTQ5ZmRkODE5MzkwNjAyNmQwZTc0M2RhOWY2 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.. [emailprotected], Reduced risk of over penetration from a pass through projectile. 300BLK comes in two flavors: supersonic and subsonic. .btn:not(:disabled):not(.disabled) { 1. Accuracy is determined by spin stabilization, and 1:8 is sufficient at subsonic speeds for up to 225gr BTHPs; transonic for 240grs. I also discovered that some commercial .300 blackout pistols (like the CMMG Banshee 200) will not even cycle subsonic ammunition reliably without a suppressor attached. [ARCHIVED THREAD] - 300 Blackout, is it worth it if you can not go short or suppressed? I was waiting until after the SHOT SHOW before I bought a suppressor to see what new thing came out. ZTAwMjMwYmQ2M2ZjMTc1ZjMxYzkwMGE2NzlkNjg2NWRkZWNhZTFkZmJmZDNm Same with the 16" 7.62x39 upper I got from PSA. Matter of fact of the 5 deer I took this past season, 1 was with a Ruger American Ranch Rifle in 300BLK, and 1 was with a 16" Daniel Defense 300BLK. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. It is nice to hear other shooters . ODdjMzY2OGY3ZTFlNmE1NzZmODA4NTY2MjM5YzAwNTRjMTc1MTdiZTkzZjE0 Brad Criner, Senior Director Sig Sauer Ammunition. Any use of this content without express written consent is prohibited. Subsonic .300 Blackout is plenty powerful, in my estimation, and with radically better shootability than a higher-pressure carbine loading. 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. margin-top: 6px; cursor: pointer; Would have spent my money on a Garand or old levergun. A little edgy. I think that's what OP is after. border: 1px solid transparent; Some specialize in long range shooting and some are biased toward short range stuff. 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! If you are going to reload the 6.8 is a much better wildcat supersonic round for the AR. Most subsonic blackout ammo uses a bullet in the 200-grain range, and, of course, .308 diameter. 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. Manufacturer #: SUP300BLK (20) UPC #: 020892224483. Unique powders optimized for subsonic use result in a low flash signature, ideal for either suppressed or unsuppressed performance. Centerfire shooters looking for ultimate quiet will often reach for 300 Blackout subsonic ammunition. by Quiet Riot Mon Feb 06, 2012 8:13 pm, Post A heavier buffer and spring, or an adjustable gas block, can provide the cushion the supersonic needs to avoid over-function.. document.write(new Date().getFullYear()) Copyright Hornady, Privacy Policy | CCPA Request | Accessibility Policy | Terms of Use, Designed and developed by IdeaBank Marketing. Thats another debate for others to work through in other articles, but its my story and Im sticking to it.

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