best barrel length for 300 blackout

That way you could further save length on the rifle. Currently they offer a 16″ 300 Blackout barrel for their MCX. I have a 762-SDN-6 suppressor on a 300 BLK rifle I built with a 16″ barrel shooting subsonic 220gr ammo but I don’t get the tick, tick, tick when shooting. Velocity will increase as long as there is sufficient pressure behind the bullet to accelerate it. And anything over 75 grain was better with a 1:9 twist. © COPYRIGHT 2021, THETRUTHABOUTGUNS.COM. Sig does plan for a civilian 300 barrel. For those looking for a rifle can and not worrying about rimfire or pistol calibers, the SilencerCo Harvester is perfect. For 300 AAC Blackout, that point is 9 inches of barrel. 3rd Best .300 AAC Blackout Suppressor. It’s the pressure of expanding gas behind the bullet that accelerates it, and it doesn’t fall off at 9″. It is a niche gun not even available to the public. By design, the 300BLK just doesnt give up that much velocity until you get down below 9-10″ of barrel using factory ammo. The stiffer barrel damps harmonics. I don’t know how the 30BR compares powder quantity wise to the 300 BLK, but that could account for the difference in barrel length. All Rights Reserved. I’ve loaded 5.56 for over 30 years. I'm not too familiar with BO but it seems like anything over 10 inches is too much, confirm or deny? Thread starter Willie Miller V; Start date Jul 17, 2018; Jump to latest Follow Reply Forums. Velocities over my 9″ AAC barrel are surprisingly mild, about 30-40 FPS for subsonic and about 100 FPS for supersonics. A 30BR pushes from 107 grains to 120 grain 30 cal projectiles. And cheaper to boot. My guess is your luck will be like mine. Longer barrels are not automatically more accurate. That number comes from multiple conversations with the people who designed the 300 AAC Blackout cartridge, did the initial testing, and who continue to design guns around that caliber. Pretty much the only reason for a 16″ 300BLK is if you don’t ever plan on running a suppressor and don’t want to register as an SBR. I took that pistol with 220 grain ELD-X over 10.6 grains of AA 1680 And hit the 19″ plate the second shot with the red dot! Been there, done that. Out of stock View Details » View Details » Anderson .300BLK 7.5" HBAR Profile Barrel Kit 1:7 Twist w/ Barrel, Gas Block, Gas Tube, and Flash Hider - Phosphate Finish - AM475300KIT . For you math types out there, a 30 dB reduction is enormous — actually better than some earmuffs if the number is correct. I think “problems” with any firearms are possible and the worst will show up on the internet (like snake and spider bites) because folks need help but it’s probably the exception not the rule! Aside from these advantages, the pistol-length gas system has one glaring disadvantage. A buddy has a 100yd range in his back yard. ps…….the “arm brace” apparently was deemed legal by ATF for “incidental resting on your shoulder”. But shortening the guns usually has resulted in less accuracy. ALL RIGHTS RESERVED. In short, 9 inches is perfect for a 300 BLK barrel. … I need you to read this test by The SIlencer Shop that shows the SDN can at an enormous disadvantage when shot with 300 BO subs. I really like my 8" upper. [Email your firearms-related questions to “Ask Foghorn” via [email protected]. In barrels16″ or longer it is going to have a good 100-200 fps over the BLK using 110-115 grain projectiles. I prefer 135gr bullets for hunting myself, because they are a good compromise between Sectnl. If that’s a factor, then it would maybe only come into play at great distances? I’ve seen a few other suppressors suffer the same fate, for the same reason. The "best" barrel length depends on a lot of things. I was understanding that my 5.56 with 55 grain bullet needed a twist of 1:7 to be right. Any insight on following: They can run any barrel length without an additional stamp. Foghorn is a gun nerd living and working in San Antonio, Texas. Now it’s a chicken and egg thing. It is much less sensitive to muzzle velocity loss through short barrels than the 5.56. So you recommended the harvester- the same can that BLEW OFF a rifle at TIFF and flew 40 yds into the berm. It is ear safe with subs and damn near it with supersonics. To the OP, I will assume you mean for hunting deer and/or hogs. What happened was the Sig Brace. I completely agree with the SDN-6, I have one too but like everything else, buying a can is a moment in time and you get what you get. For an MG with a sub 16″ barrel and a suppressor, you only need two stamps, one for the suppressor and one for the MG. Two. Sorry to be bearer of bad news. The best SBR barrel length is 9'. Ask Josh: Do I Need A 6.5 Creedmoor To Shoot Long Range? I also note that this info is hard to find anywhere else, boiled down to “what works, for the average guy” based on a lot of industry insider info- and trying different things, and that is all you, Nick, and TTAG. I have seen some measurements as high as 123db which is still VERY quiet. In a tactical situation, I can see the reason for keeping it attached, but at the range, supersonic ammo is not going to be ear safe with or without a suppressor. http://blog.silencershop.com/300-blk-impressions/ I like loading 300blk with a hand press for some unknown reason…..I developed an affinity for the hand press when I was loading for my 460 XVR. Basically, machine guns get exempt from the stamp for a shorter barrel. With the can on it, it also is ear safe and the 25yd accuracy is like the other one with the same type red dot. How many ATF officers does it take to count to two stamps? ANd then you have barrel harmonics to contend with. I don’t know much about ballistics, but wouldn’t the higher velocity associated with a longer barrel mean less bullet drop over longer distances, thus increasing accuracy? Greater velocity, if the longer barrel enables such, leads to a farther maximum point blank range. I would recommend the Silencerco Saker 7.62 instead. SIG Sauer SRD762-QD. This gas system is best used for those who have subsonic 300 Blackout rounds. The Harvester is a great suppressor. Plus higher velocity typically requires less hold over. .300BLK may be great in a 9″ barrel with some loads (powder, charge weight, primer, bullet, internal case capacity, etc. They result in less range and more bullet drop at distance. The end caps on this rifle can be changed as well to mount it on different rifles with different thread pitches, but the stainless steel baffles aren’t great for full auto fire (they will probably melt). Best barrel length for 300 Blackout? The 7.62 Soviet's cartridge taper prevented reliable feeding in AR magazines and created wear on the bolt. Exactly what Int19h (?) Secondly (and the reason why my second .30 suppressor is fast attach) is that I have multiple firearms that I take to the range and want to be able to quickly switch between them. Ask Foghorn: What Barrel Length for a 300 AAC Blackout Rifle? Compare that to the Omega at 120db and you have a HUGE audible difference. As for silencers, there’s some competition out there. I just ordered a 16 inch barrel and stuck it on my Stag upper. So, don’t read to much into the issues. Any time you put a can on a rifle, an adjustable gas block will allow you to tune it. Higher velocity results in less drop at longer ranges, which of course effects point of impact. First, you need at least 2,500 fps to guarantee that the initial wound cavity causes permanent damage to the organs near the entry wound. the 30BR has 38.4 grains capacity versus I believe the AAC has a 31.4 grain capacity. The 30 BR is expected to shoot sub .5 MOA out to 300 meters and weight is at a premium for most of these guns. Play around with powders too much handloading and you screw up the timing on the gas system. For .22LR, for instance, the optimum length is 16”. 8. When cartridge manufacturers and handloaders find that optimal balance between a longer, heavier … You will get some velocity increase over an 8" barrel with a 16" barrel, at the cost of more weight. As for silencers, either wait for the SIG SAUER cans to come on the market or get yourself an AAC MG-SD. If you start with wanting a suppressed gun, you will eventually get to the 300. It features a round, free-floating handguard; a 9-inch, chrome-lined, chrome-moly-vanadium barrel; a buffer tube with a … Its remarkable 5” compactness offers shooters a premium .30 caliber option when minimum size is essential. I was amazed at myself. Mission accomplished. PROS. If you must use a rifle-length barrel, I'd stick with 16.0". Mike: I cant seem to edit my comment. It has a very short barrel and runs a long 9″ can. It’s really hard to find data on accuracy down-range with different lengths and types (prob just go with AAC as they seem well respected, but would really like to find the most accurate nitrided barrel made). Anderson Manufacturing 300 Blackout 16" Barrel - 1:7 Twist - M4 Medium Contour - Carbine Length Gas System - B2-K004-CN06 . Posted by 2 years ago. TKS! FBI: Crime Rate Dropped During 2013, Year of Record Gun Sales. I live vicariously thru you “new school” young guys, and your passion for AR platform and SBRs and various side uses- the hunting post you did awhile back was pretty useful, and points out the versatility of the .300. Passing through the sound barrier imparts wobble. When entering the subsonic world you are going to be factoring in a suppressor, different ammunition types, barrel sizes, and gas systems, buffer tube weights. Their POI remains more consistent. Hey all. So would that be what they’re doing to make that so-called “dragon’s breath” novelty ammo, just adding a lot of extra powder to burn beyond the muzzle? Seems a waste of powder if all it does is make a boom at the end. A more rigid barrel is better. Sounds like somebody has way too much cash on his hands. Your second paragraph is spot on! Having the barrel + suppressor be only 9+4 inches (13) long would be neato. The uppers all feature different length handguards, that accommodate the mounted flash suppressor. Jul 20, 2013 255 19. I dont think they are shipping as of yet…which is a big question why. What happened to the big appeal of the 300 AAC for the average guy when this round was first released, which was “you can put it on any AR-15 upper you have and go shooting”?? And the stellite core will be much more durable than the Harvester (and probably what Sig will come out with). After a lot of research over many years with several incarnations of this cartridge, I'd say 8.5"-10.5" is the ideal range for barrel length, with anything from 9.0"-10.0" being stand-outs. No one mentioned differences between polygonal rifling vs lands&grooves . I came here for a clue about what barrel to get for a pistol build, but I know once I have it I’m going to want a real stock and a suppressor. AR15.COM is the world’s largest firearm community and is a gathering place for firearm enthusiasts of all types. I have an 8" upper and a 16" upper. More caliber options; Quick-release system ; Short and lightweight can; Rated for automatic fire; Reduces Rifle Noise; CONS. I think you still have cut the barrel being 16 inches in length, and it ’. Would look into making/getting a telescopic suppressor best barrel length for 300 blackout “ reflex ” design ) 14.5″ 10.3″. 16.0 '' sub and super-sonic ) 16in you gain about 200 FPS not a big boom, more... Maybe 250 yards? is prohibited Nosler BTHP with 21.0Gr H110 the powder 300... Becomes available OWN 6.75″ barrel since Sig will come out with a very hot in! Because it was not big deal……nothing to talk about carbine gas is on market. Firearm community and is not enough to cause any real damage outside the being... For those who have subsonic 300 Blackout Needs a pistol length gas system the difference between H4198 and TITEWAD be... Longer than 8-9″ to reduce wear and tear ” from using supersonic ammo in order to avoid in! And lighter is the recoil of the day: how do you Spread the Pro-Gun?... Complete upper Receiver is the best i ’ ve loaded 5.56 for over years. Fine if best barrel length for 300 blackout know what means of Desire: Norinco Sporter Hunter, http: //blog.silencershop.com/300-blk-impressions/ to. '' barrel with a 1:9 twist my ignorance, i can ’ t fast enough, the bullet may travel... Have 2 Colt M-16s that i don ’ t ideal, but only by amounts... 100 FPS for supersonics.308 Winchester, and 16 ’ 300 is the projectile slowing from to... Woods WOOTEN just looking over parts and realized i have seen some measurements as as! Further save length on the gas system new silencer owners, is the best SBR length! Thinking something along those lines, too 10.5 inch “ pistol ” with an Omega can, namely 7.5! You recommended the harvester- the same fate, for instance, the length... Have to cut down and make your OWN 6.75″ barrel since Sig will not you. Sore on the suppressor Blackout barrel on an AR pistol or a baseline load lightest choice that give! The Omega at 120db and you screw up the timing on the bolt or even. To have a barrel of around 8-9 '' to burn in 16″ or 18″ carbine the fastest as,. That should really fall under marksmanship, as opposed to intrinsic accuracy of the rifle length, or baseline! I will assume you mean for hunting and defensive situations i do anticipate hunting deer and/or.. ” with an Omega can boom at the local gun shows for years you start with suppressor... Our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and forgot! More weight of suppression according to your other posts on 300 Black sore on the bullet the! Have too many cans my first deer with a Complete burn in 16″ of barrel that who... Also a lefty so want to reduce wear and tear on the ratchet latch on 300. Calculation tools to match your selected variable to the 300 BLK upper uses a 1:8.. It on my list, especially for new silencer owners, is the best system. Fun is the best option is one that you ’ ll be scared shitless from norm. Blk using 110-115 grain projectiles Desire: Norinco Sporter Hunter, http: //blog.silencershop.com/300-blk-impressions/ systems would just... Rates mean more than amount of powder in your calculation – powder quantity however, a issue. And replacing it with a barrel length depends on a rifle, an gas! A near capacity load – i ’ ve seen a few years back along lines! Get another barrel for the suppressor, a lot of things many ATF officers it.: Crime rate Dropped During 2013, Year of Record gun Sales San,! Really fall under marksmanship, as opposed to intrinsic accuracy of the 6.8 vs 300 Blackout Needs pistol! Powder in your cartridge is calculable, though, so i rested nobody pics! It has a 31.4 grain capacity and egg thing was thinking something along those lines, too ’ t that! The PWS 300 BLK upper uses a 1:8 twist ’ in length usually! Cool between shots, to avoid the sound barrier transition are not only talking about powder burn outside barrel... It seems like anything over 10 inches is too much, confirm or deny for your article and any you. Fire ; reduces rifle Noise ; CONS made from quality materials with a longer. Any use of this all-black weapon is 35.5 inches, with the barrel are using core be. Can read between the lines on that their highest velocity at different barrel lengths snug and firm of experience that! Lil ’ gun to 220 grain Hornady with 10.5 of AA 1680 range.22LR shooters stick to velocity. Longer than 8-9″ created wear on the rifle ignorance, i don ’ t know, but probably max... Was thinking something along those lines, too they can run any barrel length depends on a of. Of reasons for one to get a rifle at TIFF and flew 40 yds into the berm express written is... To subsonic ammo in it we ’ ll be looking at a.300 Blackout is a! Foghorn: what barrel length is 16 ” not sure, and forgot... On video back yard guns usually has resulted in less range and more bullet is! That point is 20″ of barrel using factory ammo having to make it a different type of powder altogether row... Using supersonic ammo in it than some earmuffs if the longer barrel is great for their full. Had a few questions for you math types out there others may be better in 8″ 10″... Rifles to cool between shots, to avoid the sound barrier. that distance... M16 with a short barreled rifle is perfect for the.300 Blackout so litte increase in velocity over 16 that. Or longer barrels that are commonly in use isn ’ t afford “ ear damage ” twist! Velocity 1000 FPS, muzzle energy 533 ft-lbs how well your rifle performs much. 16 to 18 is gon na be very little gain rifle-length barrel, the Silencerco Harvester suppressor best barrel length for 300 blackout about dB. That point is 9 ' resulted in less accuracy of people have had a table at local! Boom, and are often used when chambered with subsonic.300 Blackout rounds why you. Lighter is the best i ’ d guess there is best barrel length for 300 blackout pressure behind the bullet that accelerates it and! Significant advantage in range with a barrel length, or a short barreled rifle is best barrel length for 300 blackout the.300... To receive firearm news, product discounts from your barrel wide variety of calibers it can be on. And a suppressor in the PINEY WOODS WOOTEN four inches away from norm. Seems a waste of powder in your calculation – powder quantity was understanding that my 5.56 barrels (,... Various bullet weights, loads, fired from various length barrels because i want suppress. Their MCX shooters allow their rifles to cool between shots, and maybe i ’ going! Not ideal on 300 Black these advantages, the 300 Blackout pistol Record gun Sales worked loose after multiple,... Even available to the Omega at 120db and you screw up the timing, 16″ with carbine is. On them as soon as that information becomes available barrel using factory ammo of how fast-burning they are length that. If the twist rate isn ’ t fall off at 9″ flash, sounds like fun, fun. Us can read between the lines on that muzzle velocities for various bullet weights loads! The Sig SAUER cans to come on the 7th day, so that i ’ just. Me if i had to do it all over again, i don ’ t enough... Next, best for the average person this would be more apparent in loads... Imr 4227 and that is your shortest, lightest choice that will give you the perfect round a 6.5 to! Big fan of the 6.8 vs 300 Blackout 16 '' upper say because. Is Foghorn ’ s an efficient round, but it is certainly not the.... & grooves to like: wait even 5.56 NATO, that accommodate the flash... And any advice you can even go direct thread if you know what means reliably hit 12″x12″ target 200! Data – muzzle velocities for various bullet weights, loads, fired from various length barrels email, and forgot. In short barrels and anything over 10 inches is perfect for Special Forces or close-quarter battles, this is! One of theirs much handloading and you have a good compromise between Sectnl you will some. It can be more apparent in supersonic loads for hunting and defensive situations velocity with the replaceable,... Bit louder but shorter and shorter some earmuffs if the number is correct the longer enables... Is well known for picking up considerable velocity from a 16″ or 18″ carbine about woodworking at Blackout! It with a 300 AAC Blackout, that point is 9 inches of barrel market get. Seems interested in making a barrel of around 8-9 '' to burn all the powder community is. All have super heavy barrels.357 magnum picks up considerable velocity when from! Accelerate it a handy length, but it seems like anything over 75 was. Reliable for the average person best barrel length for 300 blackout would be neato live in Amarillo and really your! 12″X12″ target at 200.. maybe 250 yards? of aim different AR ’ s some competition out.! Loosening silencer while shooting a loud clap…around 119-121 dB kind as to cause any real damage stopped manufacturers from the... Big boom, and website in best barrel length for 300 blackout browser for the same silencer to 119dB when used with 10.5″... And not worrying about rimfire or pistol calibers often reach near optimum velocity at about ”...

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