SILENCER SATURDAY #37: Subsonic 300BLK Shootout -The Firearm Blog Post You must log in or register to reply here. I was waiting until after the SHOT SHOW before I bought a suppressor to see what new thing came out. That said, the 30-30 has killed more white tail deer in North America than all other cartridges combined. 300 Blackout: Shooting with Subsonic Ammo - Silencer Central 7.62x39 has more power and cheaper ammo than 300blk. 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. I prefer the looks of the Shockwave Blade type brace if you need to do a brace. Thanks for the info and well reasoned opinions. ODdjMzY2OGY3ZTFlNmE1NzZmODA4NTY2MjM5YzAwNTRjMTc1MTdiZTkzZjE0 by 300Blk Fri May 27, 2011 10:17 am, Powered by phpBB Forum Software phpBB Limited. MTk0M2U1ZTMxOGQyNTJjOTE5YzU1MTJiZjA2NTkwZDJkNWU2OTBiM2IzYTMw if running nothing special and you just want a 30 bore get a PSA 7.62 x 39 upper kit. How loud is 300 Blackout Subsonic? - AR15.COM For ease of use, Id be better off building another just for using subsonic ammo. by Quiet Riot Mon Feb 06, 2012 8:13 pm, Post Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. Just recently purchased a pistol upper kit for thr build Im working on. Reloading lets you use most all of the bullet types from 110 grains to 175 grains or so. } NjI2MDFhZjNkMzY1NTA2MTQxNDNlYjJmMDNhNTQwOWM1ODc5MGRhZWY4Njlk font-weight: 400; I think that's what OP is after. If someone wants to build up an upper that could run both super-and subsonic, theres going to be some parts mods involved before the cartridge switch. Most subsonic blackout ammo uses a bullet in the 200-grain range, and, of course, .308 diameter. 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. .btn:not(:disabled):not(.disabled) { Share your tips in the comment section below. .btn-warning { I got one just to have another round to play with. 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). 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. Otherwise, if you're not going to make it a pistol, then just stick w/ 5.56mm. 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. Winchester Super Suppressed Ammo 300 AAC Blackout Subsonic - MidwayUSA The only issues Ive had with my AAC barrel is THE with cut brass. I hope this was helpful, cheers. Thought about getting a 10.5 barrel to see if it corrects the cycling issue. I have a feeling I know how most of them will answer, but Ive been wrong a few times in the past. I had been considering the .300 Blackout for a while too. If you do plan on shooting suppressed or aiming at targets within short distances then proceed with the 300 blackout platform. If youve chosen 300BLK to help accomplish this goal, youre on the right track. Have you had success getting good function from a .300 Blackout? display: inline-block; NWY3ODNkODRmZWU0NTQ5OTY4OWFkNDE5NDExZjE4ZTZmN2JmZjI0YzRhMWFh Forget about cut brass. I have 2 16's, bolt and one AR. 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. 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. I eventually got an m-16 bolt carrier and heavy buffer. The XTP bullet in Subsonic Handgun has built a world-class reputation for accuracy and stopping power. by Tom12.7 Fri May 27, 2011 7:58 am, Post ZTUzMjk3MjYzOTAzZDg3ZjhhZjFiNTE1NjY0MjJlN2Q3NTc3YjUzNDE4ZWFm On my build, I chose to accept the one-trick-pony approach. It just so happens that my SOT has such a range and allows me to shoot my 300 BLK subsonics but not supers. I'd recommend holding onto the subsonic .300blk ammo until you get an approved tax stamp for a suppressor. I feel the concept by design puts less stress on the internal parts and I hope manufacturers continue developing in that direction in order to better refine how we adjust ar gas systems. text-align: center; If you are going to reload the 6.8 is a much better wildcat supersonic round for the AR. We posted another video from Class 3 Ordnance a little while ago where he shot a 7.5 Adams Arms Tactical Elite Upper with and without a silencer (find article HERE ). . Not casting doubt on it's supersonic capabilities, but if I'm shooting a .308" diameter 16" supersonic, it'll be on a 7.62 NATO type carbine AR platform. YTMyZGRiMDU5NDZiNjA1ZmIwMjgwZTgwMWE0ODkxZGYwMzFiZWRjMTU3In0= But all I can find are subs - please post up the ammo you have and most people with a suppressor will probably trade you. Always (always) keep in mind that were operating in a world of fractional milliseconds defining too much and not enough, and hotter and cooler.. 300BLK is great if and ONLY if you are a reloader. Oh, my only hog of this year so far was with a 16" Noveske 300BLK. 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. OK, so it is a ridiculous thing to open up ports and basically ruin perfectly good barrels. Thats port pressure. Not technically the same as chamber pressure, but its from the same source. 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. Only using unsuppressed 16" 300blk is hard to justify over other options. No big surprise guys but Short barrel+weak ammo+ no backpressure=shit reliability ps. But while energy transfer is very important it does not tell the entire story. Your access to this site was blocked by Wordfence, a security provider, who protects sites from malicious activity. For the vast majority of applications, supersonic ammunition is the most practical choice, and it has the added benefit of being cheaper as well. Shooting 300 Blackout Suppressed and Unsuppressed by 300Blk Mon Feb 06, 2012 7:44 pm, Post Heavy for caliber bullets are often used to off-set lack of velocity and still provide great short to medium range performance. Bleed off/non restrictive, finger adjustable, battle proven, reliable. Manufacturer #: SUP300BLK (20) UPC #: 020892224483. It has a adjustable gas block with two settings, smaller opening and larger opening. UPDATE: SUBSONIC CYCLING ISSUES -300BlkTalk Is 300BLK worth it in supersonic unsuppressed ONLY appl.? -300BlkTalk The 300BLK can run both super and subsonic ammo with a change of a magazine. YTZjMjk4NWM1MTdlNTA0ODc1NTQ5ZmRkODE5MzkwNjAyNmQwZTc0M2RhOWY2 Home Ammunition Subsonic Success: Getting Good Function From a .300 Blackout. It's been metered and subsonic .300Blk is far quieter. I assembled (hard to really say built) an Alpha Shooting Sports 10.5 .300 pistol upper with Nitride coated bag and with an Aero Precision lower, and have a Mystic X silencer. 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. The setup was equipped with a Trijicon AccuPoint 5-20X50 scope, dialed to 20X. I reload all my stuff so factory ammo prices aren't a consideration for me. Y2ZiMWUwMjljYjc2NjMyZDRjOTA0ZTkxMzk2MGEzMWVmMjFmYWVlOTdjZjFm MjgxYmJjNjRlYjU0NTA4Y2QxZmMxNmNkZjVlOTUzM2M2YzUyYWZkM2E1M2U3 text-decoration: none !important; Unless you have rare earth metals coming out consistently from at least one end of your body the average person might not be able to afford consistent training with subsonic 300 BLK to be proficient. text-align:center; Range Report: How Good Is the Smith and Wesson M&P FPC 9mm Folding Carbine? 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. Home defense in its most typical form is about getting yourself and your loved ones off the X. 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. It won't be a huge difference though, and both will be loud indoors. by 300Blk Fri May 27, 2011 7:25 am, Post YzhlYzAxNTM3YjA3NjI5MDM0NTA1YzlmOGIyMjE1NzhmYzcyMDYzZGYwZGNm You can always pickup a 300bl later. The farther down the barrel the gas port is located, the lower the pressure will be by the time the bullet passes the port and the gas enters the port. Your email address will not be published. Been kicking around the idea adding a 300 Blackout into the mix, yet state laws do not allow for SBRs or suppressors. .300 Blackout Subsonic Success Tips - The K-Var Armory Most factory .300 Blackout subsonic loads are a little more powerful than a routine .45 ACP handgun loading, if we're going on (the admittedly incomplete) calculated energy figures. NmYzMzU2MjU0YmYzZjg4NDg1MTU4MWE0NDc4ZWUyODcyZTAwNjVhMmQxMjcy Theres much said, unsubstantiated, about over-penetration of higher-velocity bullets. I usually end up cutting 3-4 coils from the spring to add an edge of reliability to a subsonic. I now am thinking it could be dwell time. 300BLK is the most versatile centerfire cartridge in existence and an excellent HD choice. Be first to know about promotions and new product launches. AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types. FNG / New Forum Member today, registering just after my first range session with my new SA SAINT .300 Blackout pistol. 300 BLK has been considered a rather expensive round even before the logistical infrastructure was swamped and manufacturing capabilities were struck by limited staff and astronomical demand. } 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.. Unsuppressed, a significant muzzle flash will occur that may hamper low light visibility, the report may cause hearing damage and temporary disorientation. 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. The armor was going to charge me a lot of money to find the problem until CMMG tech support told me. Does some damage with Barnes vor-tx bullets. - So, the Mode 1 set screw, fully inserted, allows the maximum amount to gas to be used in cycling the weapon? 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). Frangible is best for the indoor range. Subsonics are expensive and their performance is marginal compared to supers. Do yourself a favor and get one you deserve it. 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 truth is that supersonic .300 blackout is absolutely better than subsonic, in all areas but one. Due to the higher velocity, you will encounter much louder report regardless of a suppressor, due to the supersonic crack of the bullet. The 7.62x39mm is another that can be made to be a great subsonic cartridge (but most factory ammo is supersonic). 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). For close range pig-hunting, it's a game changer. -----BEGIN REPORT----- One reason I could think of is for using your AR on an indoor range that is limited to pistol calibers. A 16" .300 blackout gun running supers and suppressed is still pretty friggin quiet. Subsonic 300 Blackout holds more power than 919mm while retaining equal ratings of decibel while suppressed. 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. Just because it's not ideal, doesn't mean it can't be suppressed. All Rights Reserved. by 2bad4u2 Mon Feb 06, 2012 11:17 pm, Powered by phpBB Forum Software phpBB Limited. Most factory .300 Blackout subsonic loads are a little more powerful than a routine .45 ACP handgun loading, if we're going on (the admittedly incomplete) calculated energy figures. Read more: SIG SAUER MCX Rifle Review With Video Reply Save Like 7.62Kolectr I dont know if it will have the short comings of flame cutting as listed above. The additional bullet weight keeps the rounds from breaking the sound barrier, and gives them as much energy as possible. MTYwYjBhYWYzMjliNDdhNjMzYzAyOTM3Njg5MmU1NmYxOGZmYTY2NGU5NjE4 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. white-space: nowrap; 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. 300 was designed to fill the short and quiet roll. Not my thread, but I think I was just sold in what to do with my resent acquisition. However, suppressors can't get rid of the sonic boom left in a supersonic bullets wake. SwedishMoose 3 mo. HI. _hester_ 6 yr. ago Yeah, but have there been measurements taken without a suppressor? If there's no can then this is a dumb argument. Suppressed .300Blk is under 120db and easily hearing safe. It was frustrating having so many issues with subsonic rounds and I had no interest or desire to get a suppresser. Even the small .22lr breaks the sound barrier, and gives a small sonic crack. He's 11 and the subsonic unsuppressed functioned flawlessly and the recoil, even unsuppressed was negligible on my 16" AAC upper. Basically run it like a subgun. Anyway, read through the responses below and let us know your thoughts in the comments section. 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. Some specialize in long range shooting and some are biased toward short range stuff. Unless your 300 is just going to be a range toy, the cost savings isnt worth the risk. 300 blackout is very much a do-it-all round, but if you're not gonna be shooting suppressed and the shorter barrel length doesn't matter go 556. . 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. Just a bit about the whole defensive rifle debate: some say something like 5.56 is not a good choice for home defense. -webkit-user-select: none; Best Subsonic 300 AAC Blackout Ammo - midwayusa.com Id suggest running a standard USGI-spec buffer and plain old standard variety carbine-length spring for subsonic. document.write(new Date().getFullYear()) Copyright Hornady, Privacy Policy | CCPA Request | Accessibility Policy | Terms of Use, Designed and developed by IdeaBank Marketing. 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. Fact is, they are not out just yet - so you probably need a 5.56mm upper for now. In keeping with this motif, an AR-15-style bolt carrier works best with subsonic. It may not display this or other websites correctly. font-size: 1rem; Suppressors - Subsonic 300 Blackout Suppressor Short Can Short List 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 Mission of Cheaper Than Dirt! When I first built a .300, I couldnt get it to run reliably with bolt-over base failures, double feeds, etc. -----END REPORT-----. MjFlNGIwYjNkNjAzOWNhNTg4NTk2Y2VhODViMjg3YmI4OTgwMmExYmVmNDlk We will promptly replace or repair any product that we determine to be defective. .300 Blackout, Supersonic vs Subsonic - 80 Percent Arms 300blk is still loud af even when subsonic. by doubloon Fri May 27, 2011 9:49 am, Post 300 Blackout Suppressed With Subsonic Ammo - YouTube margin-bottom: 10px; There are a couple other AR conversions that work better at being supersonic only. SILENT AND STEALTHY 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. Subsonic 300 Blackout rounds perform extremely well for their intended purpose. 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 I could not go suppressed, I'd pick another caliber. Depending on the load, some 300 blackout subsonic rounds are quiet enough to comfortably use without ear protection. You don't have an "issue" with your 300blk if it won't run subsonic ammo UNSUPPRESSED! In the review on the MCX from ammoland the author says, "We experimented with a variety of 300 Blackout ammunition. by jason Mon Feb 06, 2012 7:58 pm, Post by 300Blk Fri May 27, 2011 9:36 am, Post .223/5.56 is what you should buy. 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. These lowered stats can result in unethical game kills and can lead to animal suffering even if you think you made a clean shot. ( 3) Write a Review Ask a Question. 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. 5 Best .300 Blackout Barrels | invoqe 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. SILENCER SATURDAY #37: Subsonic 300BLK Shootout. transition: color .15s ease-in-out,background-color .15s ease-in-out,border-color .15s ease-in-out,box-shadow .15s ease-in-out; I probably would since you've already got the 6.8 spc rifles. Discussion about rifles in 300 AAC BLACKOUT (7.62x35mm), hosted by the creator of the cartridge. And! Re: Why run subsonics without a suppressor. Router Jig Extreme (compatible with any AR caliber). Somewhere in south Texas I think makes or sells M1A actions, barrels and other parts. Such is not the case. Subsonic .300 Blackout is plenty powerful, in my estimation, and with radically better shootability than a higher-pressure carbine loading. 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. 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). I love my 300 Pistol. Reason for that is because the 300 BLK uses almost all the same AR parts used for a rifle chambered in .223/5.56mm. 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. Go 300blk pistol. 300 BLK is known for subsonic performance but one cannot discount the great performance of supersonic offerings as well. This will add versatility and a broader range of uses for this great platform. At 200 yards, the 60.5 inch bullet drop of a .45 round is similar to a .300 Blackout subsonic round. 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. Speed equals energy, so (typically), the faster a bullet can travel, the better. Speaking of adjustable gas blocks, dont run one on a pistol-length system. Given equal penetration a larger bullet will damage more tissue and cause more bleeding. I think carbine length systems and 16 barrels are part of the problem with .300 blk. by offsidewing Mon Feb 06, 2012 10:34 pm, Post 300BLK is the most versatile centerfire cartridge in existence and an excellent HD choice. Civil? The can boosts the pressure and affects trajectory. Brad Criner, Senior Director Sig Sauer Ammunition. Conversely an expanding supersonic bullet will create substantially more trauma than non-expanding supersonic bullets or expanding subsonic bullets. Even a thin-jacketed traditional match bullet wont expand at subsonic velocities, it may tumble, but may act more like an FMJ until it becomes unstable. Supersonic rounds are the standard rounds most shooters are familiar with as they are the more practical rounds for most applications compared to subsonic rounds. Products manufactured by 80% Arms carry a lifetime warranty against manufacturing defects. Posted: 1/25/2015 10:31:10 AM EST. The last one is especially critical in the context of the 2021 market for firearms, accessories and ammunition. 2 were with 300BLK SBR's. On a different day, I traveled to a suppressor-friendly state and met up with .
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