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. I love my 300 Pistol. In keeping with this motif, an AR-15-style bolt carrier works best with subsonic. Introducing the latest products from the worldwide leader in ammunition. One reason I could think of is for using your AR on an indoor range that is limited to pistol calibers. OTRlZDE0ZDEyNzgwZjIxZjFlZDdhOGQ3YWVlNWJjZjQyZjg4N2Q0YTQwNDhj You must log in or register to reply here. The additional bullet weight keeps the rounds from breaking the sound barrier, and gives them as much energy as possible. Supersonic ammunition will provide more range, energy delivered on target, and less drop or wind-drift at range. I have the SA Victor .308 rifle with the adjustable gas block. 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. Theres much said, unsubstantiated, about over-penetration of higher-velocity bullets. padding: .375rem .75rem; But while energy transfer is very important it does not tell the entire story. The 300BLK is a very capable rifle in the 16 inch configuration and can take any 4 or 2 legged animal that either the 7.62X39 or the 6.8 can in normal shooting ranges of up to 300 yards. 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! I obviously misread. 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. 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. .223/5.56 is what you should buy. 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. No big surprise guys but Short barrel+weak ammo+ no backpressure=shit reliability ps. 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 The 300BLK can run both super and subsonic ammo with a change of a magazine. 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. It is nice to hear other shooters . 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. The last one is especially critical in the context of the 2021 market for firearms, accessories and ammunition. 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). ZDJlOTQ0YzNkMDAyZTc2YjY5MWFjY2Q4MzIxOGVlNTAzYTQ1ZWZlMmU0MTQ0 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. These advantages are powerful features of subsonic rounds and are made the most effective when applied with a suppressor device. He's 11 and the subsonic unsuppressed functioned flawlessly and the recoil, even unsuppressed was negligible on my 16" AAC upper. They are also more likely to be available than subsonic round stocks. The .300blk sub will likely be slightly louder than a 9mm sub, assuming similar barrel lengths. Have you had success getting good function from a .300 Blackout? 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. Even the SOF guys will still do 99% of their gunfighting with supersonic rounds. If you do plan on shooting suppressed or aiming at targets within short distances then proceed with the 300 blackout platform. I like it especially in the shorter guns, and, around here at least, its looked on as an effective Whitetail cartridge choice. YTZjMjk4NWM1MTdlNTA0ODc1NTQ5ZmRkODE5MzkwNjAyNmQwZTc0M2RhOWY2 ODE1ZDM1NjM4Zjc1Yzg1OGZlODViYzdmMGM1Y2RkZWI1NDVhODQxZjI4YmRl Based on my work it's very tricky to get subsonics to cycle a standard-length XCR-L action, even . Go 300blk pistol. All comments are held for moderation and will appear after approval. } We reserve the right to edit as appropriate, delete profane, harassing, abusive and spam comments or posts, and block repeat offenders. The backpressure will not be enough to run reliably (if at all), and the accuracy will will also suffer. 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. 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. So, being new to AGBs, here are my few thoughts and what I think I've figured out on their AGB. This setup will should work excellently with subs and supers, suppressed, suppressed, and any other situation you can throw at it.. Mostly correct. Gain a deep knowledge of ballistic science and access our improved ballistic calculator. If I could not go suppressed, I'd pick another caliber. NetJnkie 6 yr. ago Oh duh. A 16" .300 blackout gun running supers and suppressed is still pretty friggin quiet. 1. I have found that the best overall approach to subsonic function is to shorten gas system length. So, if you think .45 ACP is a reliable choice for a defensive round, subsonic Blackout beats it. Lucky or good Im not really sure which, but Ill take it. If you've chosen 300BLK to help accomplish this goal, you're on the right track. I've only shot a couple through my 300's just to make sure they work and have been ratholing the rest as my wait should be over next month and I can break in the new can very well. Winchester Super Suppressed Ammunition 300 AAC Blackout Subsonic 200 Grain Open Tip Box of 20. Just recently purchased a pistol upper kit for thr build Im working on. Running subsonic through my purpose-build supersonic blackout required changing a different buffer and a shortened spring and it runs, but its sluggish. text-decoration: none !important; Id suggest running a standard USGI-spec buffer and plain old standard variety carbine-length spring for subsonic. That' MWUwMTJhYWQ1MzViMzNjMzIzMTFmOTIxMWU0NjA0Nzg5ZTIyMTgwNDUwMjg4 220gr .300 Blackout is extremely quiet, and competes with the famous MP5-SD in terms of stealthiness. Scan this QR code to download the app now. That is what AAC designed the 300 blk to do and they know how to do it. OTdmMTQ0NThiYmQ1YTBkNDc2NGIwN2E1NzFiZTVjMDVlMjJhZTViNTU0YmI5 Looks like it will be an SR7 with 90T when they hit the well stocked local Class 3 dealer! font-size: 1rem; An M1A would be cool too have, but going custom on my first buy. It just so happens that my SOT has such a range and allows me to shoot my 300 BLK subsonics but not supers. Subsonic is also preferred where the hunter wants to limit the maximum range of projectiles. Run a pistol-length location gas port (four inches ahead of the chamber area) with a carbine-length (16-inch) barrel. line-height: 1.5; The Shooter's Log, is to provide informationnot opinionsto our customers and the shooting community. 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. if running nothing special and you just want a 30 bore get a PSA 7.62 x 39 upper kit. 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. AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. 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. 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). by offsidewing Mon Feb 06, 2012 10:34 pm, Post Copyright 1996-2023 AR15.COM LLC. The value of the 300 Blackout boils down to two factors. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. Just because it's not ideal, doesn't mean it can't be suppressed. 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. 300BLK comes in two flavors: supersonic and subsonic. NTM5OTc1MGMzYzdhYTJiZGM5NmZjOGU0NWNhYjI0NDhjZjc5NWJjYWIxOThm OWEyN2JmMTE0ZGM2MzkxYjdhZDc1N2EzYzNhOGQzY2I4NDNkNTJkYjI1MDcy SILENT AND STEALTHY This purpose excludes taking down big game effectively and ethically. I dont think thats really a factor. Anything more and I get FTF,FTE. } Given equal penetration a larger bullet will damage more tissue and cause more bleeding. Unique powders optimized for subsonic use result in a low flash signature, ideal for either suppressed or unsuppressed performance. We will promptly replace or repair any product that we determine to be defective. Differences Between Supersonic and Subsonic. If you do plan on shooting suppressed or aiming at targets within short distances then proceed with the 300 blackout platform. NWY3ODNkODRmZWU0NTQ5OTY4OWFkNDE5NDExZjE4ZTZmN2JmZjI0YzRhMWFh But all I can find are subs - please post up the ammo you have and most people with a suppressor will probably trade you. 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. But that's exactly what it was designed for. 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. Home Ammunition Subsonic Success: Getting Good Function From a .300 Blackout. by JasonM Mon Feb 06, 2012 8:09 pm, Post Use factory loads and factory brass for reloading. cursor: pointer; Posted April 10, 2019 in Ammunition, AR-15, Editorial, Subsonic Ammunition by Pete with No CommentsTags: 300 BLACKOUT, 300blk, Subsonic, supersonic, When we last left you, the discussion of choosing either subsonic or supersonic ammo for your 300BLK defensive weapon was in a full-on firefight. The newer braces are less ugly & stupid than just a couple years ago. 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 agree, but not for some reasons commonly given. Supersonic 300BLK can have nearly three times the kinetic energy as a subsonic 300BLK. 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. Based on these points, for stopping a human target as quickly as possible, what would favor the subsonic .300 over the 45? Subsonic rounds hold two advantages over supersonic rounds: quietness and less recoil. If there's no can then this is a dumb argument. I was waiting until after the SHOT SHOW before I bought a suppressor to see what new thing came out. 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). ZWQ5ZjU3NDlhM2VmNTg2NmYzZmJkOGM2YjFlNzU5MzQ2YTljNzhmNDBhYjc4 Speed equals energy, so (typically), the faster a bullet can travel, the better. Subsonic Blackout has a radically milder blast and report than 5.56 or supersonic Blackout. 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. Unless your 300 is just going to be a range toy, the cost savings isnt worth the risk. I see you have some rounds made to expand in this article. It cracks me up, that the 320 pound, crisco leaking computer chair army speaks of subjects that they "read" on the internet. If anything, its the heavier bullets that are more likely to keep going. These lowered stats can result in unethical game kills and can lead to animal suffering even if you think you made a clean shot. .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. I now am thinking it could be dwell time. Only using unsuppressed 16" 300blk is hard to justify over other options. You could run with subsonic rounds for quiet engagements while equipped with a suppressor to maintain the element of surprise and your hearing.
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