It has a 1.5-inch diameter and is 7.9 inches in length. 300 Blackout as well as centerfire pistol and rimfire calibers, the Isis-2 is truly among the quietest and . New . 300 BLK ar pistols are loud as fuck if you don't have subs/ a suppressor. The Hornady Subsonic 300 Blackout 190-Gr, 20-Rds . AAC rates this model at about 126dB when using 300 AAC Blackout subsonic ammunition. Having the ability to reduce the noise from shooting your .300 Blackout Rifle to a mere 137 decibels, you don't even need ear protection with your SIG suppressor mounted on. The ISIS-2 is rated for SUBSONIC 300 Blackout, 45 ACP, 40 S&W, 9mm and rimfire. I know it is popular and is being used by SF operators (AK47-like performance in a platform smaller than an MP-5), but it came along after my time. New posts Search forums. Depending on configuration, it weighs 17.5 ounces to 21.5 ounces and is made of a 17-4 stainless steel called Stellite with a high-temp Cerakote finish. . Perhaps one of the most sobering problems with .300 Blackout is the ability to chamber in a .223 or 5.56mm barrel. Compare the db difference between super and subsonic ammo while suppressed. Q's Honey Badger is the same length as an MP5SD. 158.5dB. Subsonic Handgun utilizes tried-and-true XTP bullets that expand reliably at subsonic velocities. 300 Blackout 190 gr Sub-X Subsonic Item #80877 | 20/Box Shhh. Suppressors Subsonic 300 Blackout Suppressor Short Can Short List. SilencerCo Saker ASR 7.62; . As such, this .300 Blackout ammo provides an incredible downrange terminal performance. IIRC, accuracy out of 300 blk does not drop off with shorter barrels as quickly as it does with 5.56. . Winchester's 12 Ga. AA Low Recoil/Low Noise #8s are marketed per their label, but work equally as well at around 980 fps despite a lighter 26-gram payload. Dec 18, 2019. . This can actually vary a fair bit depending on altitude, temperature, and humidity, but in general, 1100fps is the determining number used in the firearms industry to differentiate the two. 5 Best .300 Blackout Suppressors. Q's Honey Badger is still MP5-sized but it weighs less and can fire a capable rifle round. and 300 AAC BLK, . As seen above, the heavier .300 BLK and the lighter 5.56 load shoots flat at 200 yards and are both still on target at 300 yards, then starts to rainbow at much different rates. As to pistol-caliber AR pistols, these are probably the best bang for your buck. The unsuppressed MP5 registered an average 160-163dB, compared to the unsuppressed Glock 19, with an ear-splitting average of 165-167 dB. Sound Levels. 156.2dB. Mid Length - 9 inches. Mag. Simply put, the 300 Blackout in high velocity is barely delivering enough gas pressure with a carbine length gas system to cycle the . SPL means Sound Pressure Level. I did come across it. LukeD . A whole new world of hunting and target-shooting options open with that difference, a fact sometimes obscured by the cartridge's subsonic and military roots. We ran the RF-762 on an AAC Remington 700 as well and found decibel reduction to be in the 27-29 dB range, with the rifle coming in at 169 dB without the can and 137 to 139 with it mounted. Supersonic ammunition produced a muzzle signature of 134 dB (30.1 dB net reduction), which is similar several decibels quieter than a Sten MK2S or an unsuppressed .22 rimfire rifle firing subsonic ammunition. Availability. Answer: There are countless YouTube videos dedicated to the subject. The .300 BLK bullets are 0.30 inch in diameter (7.62 mm) and the .223 Rem (5.56 mm) is 0.224 inch. What is the difference between shooting 300 Blackout sub sonic (with a suppressor) and say 5.56 in terms of noise. Suppressors. Especially when comparing 300 subs unsuppressed vs. 5.56 unsuppressed out of a short barrel. . To set the stage, nearly identical platforms from SIG Sauer were chosen: a 9mm MPX and an MCX Virtus in .300 Blackout, both suppressed. Low noise even if unsuppressed 2. I can't find any sound testing TBAC has done with 300 subs, only 308 supers . Sounds about like a .22 LR. Sure, 300 subs will do damage, but the amount by which you exceed the hearing safe level matters. Besides being extremely durable and made from one of the best gunmakers in the world, this suppressor does its primary job - silencing guns pretty well. Few brands deliver the value of Palmetto State when it comes to the AR platform, and their 16 .300BLK rifle is no exception. Even supersonics suppress quite well. The .300 BLK is filled with 110 to 220 grain bullets while the 5.56 sports 40 to 77 grain. There was also a greater range, from . $809.99. 56 mm and 300 WM applications. It can also function without issue with both supersonic and subsonic rounds. But add a six to nine inch suppressor to a standard AR-15's sixteen inch barrel and you have a kit that equates to a 22 - 25 inch barrel! The .300 Blackout reaches its max potential from a 9-inch barrel. 1; 2; First Prev 2 of 2 Go to page. Unsuppressed . I think the decibel level for all of it is around 160 db. It shouldn't be surprising to know that you'll want to find a 300 Blackout suppressor that will keep the noise levels of your gun below 140 decibels. 163.2dB. Two for one! . Relative Sound Pressure Levels in Decibels (dB) . In an instant, you can swap magazines from a mag full of subsonics for quiet performance to supersonics to reach out and touch a target. Federal's 12 gauge 2 " Top Gun Low Recoil-Subsonic Target Load squirts out 1 1/8 ounces of #7 shot at 900 fps, and is designed for this device. This model is a bit smaller than AAC's 7.62 SD, which is optimized for the full size 7.62x51mm NATO round with its extra gas volume. Dec 18, 2019 #21 Sounds like a 9mm . Terminal performance of .300 AAC Blackout is less velocity-dependent than 5.56mm and therefore a short-barrel platform is not only a good idea, the cartridge was literally made for it. Subsonic vs Supersonic Ammo Along with the sound of the action, there is an additional insuppressible noise that Silencer Decibel Level Testing. If possible can you relate to real world noise levels. Advanced Armament Corp (AAC) 7.62-SDN-6. you can expect an average muzzle sound pressure level of about 119 dB, making it approximately as loud as a suppressed .22 LR rifle or a police car siren. On line search gave me everything from Palmetto State Armory at $139 to Aero Precision at $450 (both complete w/BCG). . A high quality suppressor can cut that by about 30 dB. If you've chosen 300BLK to help accomplish this goal, you're on the right track. If you aren't shooting suppressed that's okay, too. View at Palmetto State. I find the crack/bang of 223/5.56 annoying to my ears, even with hearing protection. . #5. .30-06 in 18 1/2" barrel. It cannot be safely fired from that platform without causing a catastrophic failure to the firearm and injury or possibly death to the shooter and those in close proximity. SureFire, LLC claims its new SOCOM300-SPS is the quietest suppressor ever built for .300 Blackout (subsonic and supersonic), .308 Winchester and .300 Win. Includes.57828 piston 45ACP Front Cap Obsidian45 Suppressor . The Lodge AmmoToGo.com's blog about ammo, guns and shooting. While it's still probably too much noise inside, I think the .300 in a 10.5 might be at least doable as a tight area gun like the "truck/compact car trunk monkey" gun and a house gun with a linear brake. The can is suitable for use on a 7.62 X 39 barrel as well. Using subsonic ammunition from Hornady, competitive shooters Patrick Sweeney and Jim Tarr put both guns on film to compare function, recoil and report, and render their . Why not more love for 300 Blackout? 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. It's important to note that any firearm suppressed is still audible, especially when you get above the .22 caliber and/or deal with semi-automatic weapons. Hard to know the reduction level without knowing the base db. Without a suppressor, the folks at Silencer Shop have established baseline measurements of 208 and 220-grain subsonic 300 Blackout loads from a 9-inch barrel in the 157 to 162-decibel range. One of the hottest new rounds to emerge in the past few years is 300 Blackout; this is a true dual-purpose intermediate sized cartridge that can be fired in both subsonic and supersonic loads. That way, you can witness for yourself just how loud it is. Joker117 Replies: 9 Views: 647 5/22/2022 5:48 PM pc-ops Windham Weaponry SRC308 handguard. This makes the 5.56 approximately 40% lighter than the .300. Main Message Board . Not . Wear hearing protection. 45ACP - Full Configuration: 129.3dB 45ACP - K Configuration: 137.6dB 45ACP - K Configuration (wet): 131.5dB 9mm - Full Configuration: 123.7dB 9mm - K Configuration: 130.4dB 9mm - K Configuration (wet): 125.9dB. LukeD. My experience, the bullet doesn't make the "sonic Boom" but there is still the noise from the bullet leaving the barrel. This segment of "Cameras Don't Lie" is a subsonic showdown, 9mm vs. .300 Blackout. Effective Range. Also in most places I've seen it's nearly $1 per round. Caliber: .30CAL, 300BLK, .308, 7.62 NATO to 300 Win Mag; Color Options: Black; Color Finish: High-Temperature Cerakote Length: 7.75" Diameter: 1.48" Weight 10oz; Sound Reduction: 7.62 NATO 134 dB (158.3 dB unsuppressed) Sound Reduction at ear 300BLK 116.4 dB (150.45 dB unsuppressed) Material: Titanium 6Al-4V (Grade 5) THIS IS A CLASS 3 . A couple of things, I don't see that you metered the unsuppressed rifle to get a reference level. This is one round that I'm excited about messing around . . Unsuppressed: 163.1 dB; Suppressed: 129.9 dB; The average reduction using the 762-SDN-6 suppressor was just over 33 dB. 45ACP - Full Configuration: 129.3dB 45ACP - K Configuration: 137.6dB 45ACP - K Configuration (wet): 131.5dB 9mm - Full Configuration: 123.7dB 9mm - K Configuration: 130.4dB 9mm - K Configuration (wet): 125.9dB. Terminal performance of .300 AAC Blackout is less velocity-dependent than 5.56mm and therefore a short-barrel platform is not only a good idea, the cartridge was literally made for it. The length of the "gas port" is an integral part of firing a subsonic round since lower . What's new. The acoustic pressure level of unsuppressed gunshots is typically between 140 and 165 decibels (dB). Sound Levels. Thanks, Busa! . I know dB system, but I don't have a lot of experience with 100 dB vs 110 dB or 40 vs 100db. Includes.57828 piston 45ACP Front Cap Obsidian45 Suppressor Weight. Hornady Subsonic Ammunition designed for accuracy and performance below the speed of sound now comes in both rifle and handgun loads. Yote Hunter. approx db reduction 42 - 46 db mounting type 1/2-28 threads coating black type c cerakote msrp $499 index regulator 22lr, 22wmr, 17m2, 17hmr 1-2 mystic x 9mm, 300blk, 7. This is also the sound level where suppressed subsonic .308 caliber rifles operate. Did this on a bolt gun. Subsonic bullets seem almost Hollywood movie quiet. Not too shabby! Threaded-Barrel Bolt Guns In 300 Blackout and 308 Win. A Complete Silencer Guide: silencers vs. suppressors, laws involved to buy one as well as field testing to compare noise levels when using a silencer. hollow point bullets have a muzzle velocity of 1060 fps. Rifle Length - 12 inches. 2. Although they vary in length by manufacturer, the typical lengths are standard and measured from the receiver to the gas port as follows: Pistol Length - 4 inches. Silencerco - Omega Suppressor Multi Caliber Quick Detach. Even an 8" barrel can benefit from magnified optics like the ACOG. Thread . Recoil will be drastically less than an AR pistol or SBR in 5.56mm or .300 BLK. This can reduce the extent of the muzzle flash and ensure that minimal energy is wasted. Sounds like a 9mm unsuppressed and subsonic. 157.5dB. Related Posts: 30-06 and 7mm Comparison; 458 SOCOM vs 450 Bushmaster; AR-10 vs M1A.45 ACP and .40 SW . but I found another maker say that with 220 grain, they got 155 dB unsuppressed for a 16 inch rifle. 4. Beyond that, the 300 Blackout round is ideal for shooting suppressed. The average unsuppressed levels, which were some of the loudest results for the pistol calibers, came in at average of 165-167 dB, while the average suppressed levels came in 21-26 dB lower, ranging from 141-146 dB. My son asked last night about switching one of the AR's to .300 Blackout. Sound Level: Unsuppressed: Suppressed: 151 dB: 118 dB: Measured approx. The average unsuppressed levels, which were some of the loudest results for the pistol calibers, came in at average of 165-167 dB, while the average suppressed levels came in 21-26 dB lower, ranging from 141-146 dB. I'm so used to 300 Blackout that when people bring 223 ARs to my range or if I am at work and they are shooting M-4 AR-15s at the range, I'm like damn that is annoying. tell everyone! Relative Sound Pressure Levels in Decibels (dB) . 3. Reliable function 3. It was designed to be used in AR-pattern rifles with only a barrel change to convert a traditional AR-15 rifle from 5.56 NATO. If you're interested in the .300 BLK, then be sure to check back for more information as well as videos that we'll be posting to our YouTube channel. As seen above, the heavier .300 BLK and the lighter 5.56 load shoots flat at 200 yards and are both still on target at 300 yards, then starts to rainbow at much different rates. Q - Trash Panda 7.62mm/300BLK/300wm Suppressor W/ Quickie Fast Attach. 9mm is getting expensive but still around half that price at this point. . Though the 5.56 has a greater range (500 yards compared to 300 yards), the .300 blk is more effective when it comes to hunting. Their PA-15 Rifle in .300BLK pairs a 16 chrome-moly steel barrel with an ideal 1:8 twist, M4 barrel extension for reliable feeds, and a pistol-length gas system. Noise from 300 blackout. This is at the edge of what is believed to be the level of certain damage. 56 mm and 300 WM applications. 9 a.m. - 5 p.m. (CT). You can still fire 7.62x51mm through it however. The only differences are that the .300 AAC Blackout is chopped down from the .223 Remington case length of 1.760 inches to 1.368 inches and the shoulder is . (SOUND SUPPRESSORS) is thtestKYd 161 dB 165 dB 164 dB 162 dB dB dB 13Z dB 133 dB 132 dB 126 dB 116 dB 113 dB 111 dB dB us SILENCER SILENCER Remington zoo vrR 308 Remington 810 12 Shotgun Unsuppressed 9mm Walther P22 .221.R Pistol Unsuppre ssed CC I Standard Ruger 10/22 .22LR Rine Unsuppre ssed Amos Iron Wolf. Suppressors and the 300 BLK are tight, but not inseparable. It is widely believed that any sound over 130 db causes damage, even if there is no . 300 blackout subsonic suppressed decibels. Ensures consistent expansion: 9.5/10: . Recoil will be drastically less than an AR pistol or SBR in 5.56mm or .300 BLK. According to Silencer Shop sound-pressure measurements, it produces a sound reduction level down to 134 to 138.4 dB. Go. 5.56 will do even more damage. 300 BLK vs 5.56, Combat Ready. You are probably looking at 125 to 130 db at the ear with a supersonic round and suppressed .308. Assume the factory suppression numbers are accurate, and that puts the overall sound pressure figures in the 130 dB range when shooting subsonic. Silencerco - Saker 7.62mm Silencer W/ASR MT. Thread starter Ranger188; Start date Dec 18, 2019; Prev. Sound levels are representative only; actual results will vary. Pippinone (Page: 2 3 4) Pippinone Replies: 188 Views: 6440 5/23/2022 7:58 PM sapper5353 .308 quad rail options in 2022? . Home. Q - Thunder Chicken 7.62mm/300BLK/300wm Suppressor Quickie Fast Attach. With a $0.30 a round difference between the least expensive 300 Blackout and .308 rounds, you are saving around $300 per 1000 rounds with the .308/7.6251 over the 300 Blackout. A 9mm would be loud too of course but I would say 300 is louder. Top 7 of 300 Blackout Suppressor Reviews. .30-06 in 24" barrel. These Power-Point .300 Blackout 200 gr. The SOCOM300-SPS is manufactured by Surefire. . . Supersonic .300 . 3. A [new] MP5SD weighs in at 7 lbs 8 oz. All I can picture in my mind is a frequency somewhat lower than 5.56 and dB level less than .308, but that is still a pretty large ballpark. Forums. The unsuppressed MP5 registered an average 160-163dB . As to pistol-caliber AR pistols, these are probably the best bang for your buck. 1. (SOUND SUPPRESSORS) is thtestKYd 161 dB 165 dB 164 dB 162 dB dB dB 13Z dB 133 dB 132 dB 126 dB 116 dB 113 dB 111 dB dB us SILENCER SILENCER Remington zoo vrR 308 Remington 810 12 Shotgun Unsuppressed 9mm Walther P22 .221.R Pistol Unsuppre ssed CC I Standard Ruger 10/22 .22LR Rine Unsuppre ssed 4 dB; Avg = 162. Supersonic 300BLK can have nearly three times the kinetic energy as a subsonic 300BLK. It is a 30 caliber centerfire rifle silencer, intended to suppress many cartridges with projectiles appropriately sized to travel through the bore, optimized for 300 BLK carbines with 10-inch or shorter barrels. In the years since it was first introduced and became popular, it has since taken on a much larger evolution, but so much of the lore around the caliber is from a decade ago.That's a long time and as as things have progressed with the AR and suppressor market, so . while the H&K MP5 comes in at an average of 133-144 dB. So the 300 Blackout supersonic loads are compared to rounds such as 30-30 Winchester and 7.62 X 39mm. Joker117. 300 BO subsonics took that noise level dow to 126 on our Frankenpistol. Unsuppressed firearms produce between 145 and 180 decibels, and suppressors reduce noise by approximately 25 to 30 dB. The bolt won't close on a .300 Blackout round if it is closed slowly, but if the round has low neck tension, the momentum of . The Known Reliability Issue. In a comparison of 300 Blackout vs. 9mm for use in a PDW / SMG, well, there really isn't any comparison. At 500 yards, the .300 BLK has a bullet drop of some -114.5 inches, or almost 10 feet, compared to the 5.56's -50.3 inches, or just over four feet indicating the . Don't even want to think of the 5.56 in that length going off between buildings, let alone in one. You don't want too much noise. While the bullet is obviously much larger, the parent case is 5.56mm so it will fit into the chamber. What sort of sound levels should a person expect from a non-suppressed 16" .300 BLK carbine? Krammer adds that sound pressure levels for the various pistols and ammunition tested yielded an average mean of 157.5 dB, which is greater than those previously shown for shotgun and rifle noise levels. Carbine Length - 7 inches. Who_tee_who. In addition to its useful sound suppressors, the .300 Blackout achieves more uniform propellant combustion in short-barreled rifles and pistols. FYI, you do not have to feel pain or get ringing to be causing damage to your hearing. Top Level Forums. Noise from 300 blackout . The base is identical, as is the rim. Get 9mm HPs or something in 5.56, or a shotgun as others have recommended MSRP is $1075.. Thomas Carlson, director of public relations for SureFire, said sound data averages for various rounds were: .300 Blackout subsonic, 120dB; 7.6251, 129dB; .300 WM, 137dB; and 5.56 NATO, 134dB. 5 feet from muzzle. . 300BLK comes in two flavors: supersonic and subsonic. 20-Rds ammo to achieve a high level of consistency in quality and weight. It would protect your hearing and make your shots more accurate for controlling its recoil. .308 in 24" barrel. Have a friend using a 300 Blackout on an AR and reports subsonic to be "much less noise" Probably has more to do with the ear of the beholder. 300BLK is the most versatile centerfire cartridge in existence and an excellent HD choice. At 500 yards, the .300 BLK has a bullet drop of some -114.5 inches, or almost 10 feet, compared to the 5.56's -50.3 inches, or just over four feet indicating the .