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. 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. 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. Basically run it like a subgun. Factory ammo is unreasonable high, but reloads can be as cheap as 223. Lucky or good Im not really sure which, but Ill take it. .btn-warning { 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. I think that's what OP is after. 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. if running nothing special and you just want a 30 bore get a PSA 7.62 x 39 upper kit. This was never listed in their product description, manuals, or even in their FAQs. 300 Blackout offers a range of performance, in both supersonic and subsonic loadings. I dont like running a valve on anything but a rifle-length system. Pretty much, its for those who want a bigger bullet in an AR-15 with a minimum of technical distractions (some call them problems). } 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. . Somewhere in south Texas I think makes or sells M1A actions, barrels and other parts. Given equal penetration a larger bullet will damage more tissue and cause more bleeding. There is no noise from the action or any created via the ejection process as noticed in a semi automatic firearm. Discussion about rifles in 300 AAC BLACKOUT (7.62x35mm), hosted by the creator of the cartridge. Given your situation, a "pistol" setup may be in order. 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. How to Assemble and Use the GST-9 Infinity Jig. by hugegator Mon Feb 06, 2012 7:34 pm, Post 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. A friend of mine likes to hunt with a 16" 300 blk over his 6.8 when hunting everything from deer, hogs and coyotes. Despite larger bullet expansion size the temporary and permanent wound cavities of expanding subsonics are typically much smaller than expanding supersonics. I have a 7.5 300 blk pistol with a weak spring & mil-spec buffer, completely closed adjustable gas block and it will only cycle 110gr V-Max rounds. -----BEGIN REPORT----- I like the x39 because I can blast cheap steel cased ammo and not have to scrounge for brass. display: inline-block; by offsidewing Mon Feb 06, 2012 10:34 pm, Post If have two, 6.8s and you are thinking of a 300 blk.i say do it. ODE1ZDM1NjM4Zjc1Yzg1OGZlODViYzdmMGM1Y2RkZWI1NDVhODQxZjI4YmRl by jason Mon Feb 06, 2012 7:58 pm, Post text-align:center; Ive written thousands of words about its evils and ways to lower it for other applications. For those 'go loud' engagements you could opt for supersonic rounds to take the ballistic advantage of full power rounds. 300 blk shines brightest when its suppressed right? You seem to have found a sweet setup in this article that does not have any feed issues. 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. Product #: 417076. padding: .375rem .75rem; 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. 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. Unsuppressed 300blk Subsonics : r/300BLK - Reddit 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. 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. The can boosts the pressure and affects trajectory. Subsonics are expensive and their performance is marginal compared to supers. 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. SILENCER SATURDAY #37: Subsonic 300BLK Shootout -The Firearm Blog by 300Blk Fri May 27, 2011 9:36 am, Post From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. - So, the Mode 1 set screw, fully inserted, allows the maximum amount to gas to be used in cycling the weapon? YTZjMjk4NWM1MTdlNTA0ODc1NTQ5ZmRkODE5MzkwNjAyNmQwZTc0M2RhOWY2 I cut a couple even with my shorter gas system on the subsonic. Other than to check performance on a chrony or to look for keyholing? Sub Sonic Ammo out of an Unsuppressed 300 Blackout - YouTube How Loud Is A 300 Blackout Without Suppressor? Update New 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. 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). -----END REPORT-----. color: #212529; If I was not into NFA items I would not own a BLK rifle. 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. } Thoughts or ideas? The only reason I can think of is that your suppressor is not on, and you accidentally shoot subsonic at a bad guy, and your gun jams. NzAxZTZjNWI1YTkzYjU4MzU0Nzc0YTU2MjFmMmYyNGQ0OTk3N2ZmN2QzYmZh Based on my work it's very tricky to get subsonics to cycle a standard-length XCR-L action, even . 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 ). Unique powders optimized for subsonic use result in a low flash signature, ideal for either suppressed or unsuppressed performance. Subsonic 300 Blackout Ballistics - Velocity & Gel Test Results NTRjMTE3YWRjMTFiZjU2ZjY3NWM2NjIzMjMzOTIyNTU2MzcxODIzNjViMmQw Why run subsonics without a suppressor? -300BlkTalk The 300 AAC BLK is very similar to the Winchester 30-30 in velocity and energy for equally sized bullets. 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. 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. First, compared to the .223 Remington, you're launching a larger caliber and heavier bullet at supersonic speeds. All Rights Reserved. Is 300BLK worth it in supersonic unsuppressed ONLY appl.? I was waiting until after the SHOT SHOW before I bought a suppressor to see what new thing came out. Share your tips in the comment section below. 300 Blackout Supersonic vs Subsonic - What is the difference? I prefer the looks of the Shockwave Blade type brace if you need to do a brace. 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.. OTdmMTQ0NThiYmQ1YTBkNDc2NGIwN2E1NzFiZTVjMDVlMjJhZTViNTU0YmI5 300 Blackout 190 gr Sub-X Subsonic - Hornady Manufacturing, Inc document.write(new Date().getFullYear()) Copyright Hornady, Privacy Policy | CCPA Request | Accessibility Policy | Terms of Use, Designed and developed by IdeaBank Marketing. 7.62x39 has more power and cheaper ammo than 300blk. Gain a deep knowledge of ballistic science and access our improved ballistic calculator. Shooting 300 Blk unsilenced | SIG Talk background-color: #ffc107; -moz-user-select: none; If you are going to reload the 6.8 is a much better wildcat supersonic round for the AR. We offer several different.300 blackout build kits for whatever your needs are. The 300BLK can run both super and subsonic ammo with a change of a magazine. Be first to know about promotions and new product launches. Check out my Youtube Channel, TWANGnBANG. That's why I have 3. Heavy for caliber bullets are often used to off-set lack of velocity and still provide great short to medium range performance. 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 additional bullet weight keeps the rounds from breaking the sound barrier, and gives them as much energy as possible. Speed equals energy, so (typically), the faster a bullet can travel, the better. NTM5OTc1MGMzYzdhYTJiZGM5NmZjOGU0NWNhYjI0NDhjZjc5NWJjYWIxOThm I like 6.5G and 6.8 alot as well, but the mags and bolts are annoying and more cost. Reloading lets you use most all of the bullet types from 110 grains to 175 grains or so. MzEzZWEzN2Y4MzNkYzJlMGFlOGE1Y2Q4ZTA0ZjVhMjEzYTgxNDI4NjAwMGMx I'd recommend holding onto the subsonic .300blk ammo until you get an approved tax stamp for a suppressor. My pro shop at the range had no idea what was going wrong, they had me try different ammunition, including supersonic to make it work. 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. Suppressors - Subsonic 300 Blackout Suppressor Short Can Short List It gives one performance close to that of a .308 Win in a more short action such as the AR's have. I see you have some rounds made to expand in this article. 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. Subsonic Success: .300 Blackout Function - The Shooter's Log Given an option, a little larger-diameter gas port adds more assurance that a subsonic will work through an otherwise supersonic setup. All comments are held for moderation and will appear after approval. The Shooter's Log, is to provide informationnot opinionsto our customers and the shooting community. I sent an email request to SA with a single question that was never responded to. You dont have an issue with your 300blk if it wont run subsonic ammo UNSUPPRESSED! ZWQ5ZjU3NDlhM2VmNTg2NmYzZmJkOGM2YjFlNzU5MzQ2YTljNzhmNDBhYjc4 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). ODdjMzY2OGY3ZTFlNmE1NzZmODA4NTY2MjM5YzAwNTRjMTc1MTdiZTkzZjE0 Kind of like haircuts: they can take it off but cant put it back. The clear advantages of sub-sonic loads are, of course, sound suppression which can conceal both presence & position. It cured the problem with supersonics, so I quit while I was ahead and only shoot those. Running subsonics out of a 16" gun and suppressed is almost hollywood quiet. We reserve the right to edit as appropriate, delete profane, harassing, abusive and spam comments or posts, and block repeat offenders. 300 Blackout 9" Noveske Barrel (pistol length gas system) STAG Upper and STAG Lower ? Use factory loads and factory brass for reloading. But that's exactly what it was designed for. 300 Blackout Suppressed With Subsonic Ammo - YouTube 0:00 / 1:22 300 Blackout Suppressed With Subsonic Ammo Cory Meals 364 subscribers Subscribe 43K views 5 years ago 300 Blackout Suppressed. We want you, our readers, to be able to make informed decisions. Is 300BLK worth it in supersonic unsuppressed ONLY appl.? -300BlkTalk .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. An argument for another day. Hornady Subsonic Ammunition designed for accuracy and performance below the speed of sound now comes in both rifle and handgun loads. Plus, Im a believer in bigger is better respecting impact effectiveness of a bullet. It is also great supersonic for hunting. 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. 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. MmQ0NGIwYWY0ZDkzMjQ3MTA3YjE5MTM0ZDFkNzFjZmU4YTNkODkwNGE5YWFl NDJlODc5Y2JiNmNmNmJjNGExOWVjOTI4NGQ2MDYzOGMwNTkwMzU3MmFmZDM1 Suggested buffer weight for 300 B.O. unsuppresed : r/300BLK - Reddit Bleed off/non restrictive, finger adjustable, battle proven, reliable. ATI Introduces the Omni Hybrid Maxx Rifle - The Shooter's Log, .300 AAC Blackout: Speak Softly and Carry a Big Stick - The Shooter's Log, Washington Takes Oppression of Gun Owners to New Lows, Finding a Firearm: My Wifes First Pistol, Throwback Thursday: 5 Long-Slide Pistols I Cant Live Without. OTMwY2EwMDRiYzUzMDJlY2FlMjFiNGQ5MDY0ZmI0MzdiNWQ2Y2JmYTkzOWFh If you do plan on shooting suppressed or aiming at targets within short distances then proceed with the 300 blackout platform. I had ran the scenario of a suppressed subsonic .300 blackout against a suppressed 45/45+P (still subsonic). Conversely an expanding supersonic bullet will create substantially more trauma than non-expanding supersonic bullets or expanding subsonic bullets. 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. Not sure, probably standard buffer and buffer spring ? M2UyMzRiN2ZjNmVlNjc2MzVhZWYxY2YyZTc3NThhMDkyMjY3YjllMDhkNGJm MjFlNGIwYjNkNjAzOWNhNTg4NTk2Y2VhODViMjg3YmI4OTgwMmExYmVmNDlk That really all has to do with bullet design/bullet engineering. The last one is especially critical in the context of the 2021 market for firearms, accessories and ammunition. With high-quality cartridge cases and primers, Subsonic Ammunition offers the performance and accuracy shooters have come to expect from Hornady. } Being able to start a fight quietly, and then with a quick change of a magazine, you can have a full-power round. 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. OK, so it is a ridiculous thing to open up ports and basically ruin perfectly good barrels. Home Ammunition Subsonic Success: Getting Good Function From a .300 Blackout. The .300blk round has skyrocketed in popularity the past decade. In terms of ballistics and terminal performance, supersonic is where 300 BLK really shines, especially in SBRs, and especially compared to 5.56 for short to mid-range use. 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. What's louder unsuppressed? 9mm vs. 300 blackout (subsonic) MjI3YjA3MzA4NzgwNTg1ZWFhZDYzZDIwODBiN2U5YzkzNDkwN2NlYzVkNmRl Frangible is best for the indoor range. Your access to this site was blocked by Wordfence, a security provider, who protects sites from malicious activity. Depending on the load, some 300 blackout subsonic rounds are quiet enough to comfortably use without ear protection. I reload all my stuff so factory ammo prices aren't a consideration for me. 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.