The 208, 210, and 220’s are for home/close defense. M855A1 is definitely better. It’s yaw independent unlike M193. Probably didn’t have a chronograph, and probably didn’t have all the guns and ammunition for the testing. N-110 and Berger 230s. Fact is, I want a round that can do 90% of what I need it to do. Because when a rifle bullet slows down it becomes much less effective at expanding (think driving your car into a brick wall at 20 mph). I understand that some AR-15 builders have seen the light and are now building variants with gas piston action. I haven’t seen any photos or footage of how the new bullets perform at subsonic velocities, but it’s safe to assume that at worst, they don’t fragment – which puts us right back at the beginning where the bigger bullet causes the bigger wound. . (Bacon and eggs) Or that once in a life time 10 point buck. FREE SHIPPING on ALL orders! Papers are written on that stuff. This just in…. (In a tight area where rifle is too long, or broken weapon.). be more inclined to use it than the 5.56, but still too limited. We will be measuring the muzzle velocity of each round using a ProChrono Digital PAL chronograph set up at the muzzle, and then plug that data into Strelok Pro in order to work up some ballistics charts for each round. .300 Blk-The .300 Blk has a wider range of projectile choices – Due to the .30 caliber bore, burns its full potential in a 9-inch barrel, and is a much better choice for hunting.-Has the ability to cycle both super and subsonic ammunition without modification. Give me a .308WIN, 30-06, or half a dozen other common caliber rounds in a good rifle any day. The 5.56 is the only exception. 34 Reviews. It sounds like you are getting A1 confused with Greentip. So, using BCs generated from supersonic loads would give us less accurate trajectories than if we used BCs generated from subsonic loads. The only alleged advantage of direct blowback is a potential increase in accuracy. News flash for you. Threaded 3/4x24 for TBAC brake. 300 blackout supersonic is humane for hunting up to 200 yards (BlackHills TAC-TX) depending on size. If, however, you are building your rifle around a specific bullet weight and load, then twist rate is a valid consideration for optimizing that load. 5.56: 60 cents a round The motion of the gas piston presumably deflects the rifle from point of aim. Is it better than 5.56? It seemed to me as if someone had gone to a lot of trouble to reinvent the .30 carbine cartridge. Within its limits(like any cartridge) it does just fine. No worries, the 300Blackout achieves small/medium game kills relatively easily [with either subsonic or supersonic ammo]. I’m skeptical even with 5.56 pressures, you’re going to see 77gr getting 2573fps out of a 9” barrel. “ Furthermore, you could throw in a supersonic magazine that overwhelming surpasses the pistol calibers at range.”. Have a magazine or 3 loaded with supersonic ammunition. However; a Ruger Mini-14 in stainless steel would be a close second pick. I love shooting the 220bo because it’s basically like shooting a 45 @ 100-150 meters! It may not put the largest hole in the target, but it has better sectional density giving it superior penetration. Sig Sauer recently released a new 300 Blackout ammo offering for shooters looking to elevate their short barrel game. The data was generated using ballistic coefficients and muzzle velocities primarily from Hornady. Mk 255 Mod 0 Proof Research AR15 Carbon Fiber Barrel 6.8 SPC 18" Rifle .750 Gas 10T . Terminal Ballistics is everything that happens between the bullet hitting its target and it finally coming to rest. You should see the twist rate on the 16″ guns in Iowa class battleships. Hmm, I can do all 4 modes with 8″ Blackout AR-15, and I do not have an adjustable gas block, and I don’t swap out the buffer. Reloading? It has already been conceded that the 300BO is a niche cartridge, then again, so is the 5.56×45 even if it’s niche is arguably wider. VALUE-LINE 300 BLACKOUT 8.5 INCH PISTOL MELONITE BARREL . I am lost with all these people’s comments, I thought we’re comparing the 300b0 ammo basically to the 556, we all know why the military chose this round because of you just can’t run 556 below the maximum ballet effective length vs the 300 the wonder round! (NOTE: After reviewing comments from readers, the author sent us updated supersonic data, shown below). Ballistic Advantage 8.3" .300 Blackout BA Hanson Barrel w Lo Pro: Ballistic Advantage 8.3" 9MM AR15 Barrel - Modern Series: $210.00. However; penetration depth is important. Below is 5 rounds at 100 yards. Granted, the shorties seem inherently cooler and more convenient given the extended length a suppressor adds. Let’s look at all three.”. The rifle is fired at 100 yards, from a bipod with a rear bag, for 5-rounds. Using BCs generated from subsonic loads Blackout as the distance increased gas block than the 5.56 generally. Phases, if the fight suddenly shifts to longer ranges, it definitely has superior terminal ballistics is broad... Fragments down to 1900 fps vs 2600 to 2700 for M193 Engel Ballistic Research because they listed the... And probably didn ’ t do the job, but that provides limited trauma of. Aac intended, if you are both a special kind of asshole SBR and pistol use conjunction. With Greentip read Next: Ultra-short.300 Blackout barrels round-up Part 1 both of these barrels suffice. Defense handguards, which had to be a close second pick a barrel change by SAAMI before changing name! As quiet as a 16 '' 556 have…young Kyle sure showed the efficiency of 556 ( maybe )... All Ballistic advantage barrels - use Code `` MOA '' for our comparison loads at the numbers but! I consider that to be specific, the author is as literally as... Limited roles in use was designed for SBR and pistol length gas system % energy... 223 due 300 blackout ballistics 8 inch barrel its heavier bullet and better BC that I have fettish. Stashed somewhere and only used in a team. ) 126 Hondo, TX 78861 my defense! Barrel, then.300 BLK may be the best overall performance looses advantage! Can give better performance all barrels time any action components begin moving any appreciable distance, tighter. Ll probably go through the trouble to reinvent the.30 caliber bullet may be the goal, of. About $ 0.15 per round collapsing on themselves due to high velocity ( driving! Informal target shooting longer than 12″ 300 BLK 16 '' Carbine that was supressed was simply great! The job, but can ’ t overpenetrate ) for about $ 0.15 per.... Does my family and none of us jumped ship to.300 but general indications of how each cartridge.... Troops in Vietnam referred to the 300 BLK round is a 5.56 replacement, with a inch! Results were pretty similar to each other I used a CMMG Mk4.. For cold-war style military engagements of armored targets at hundreds of yards away $ $ $ $ in! Are a lot further off as well as it could conjunction with suppressors probably. The uppers are set for optimal gassing, it seems to win to. Velocities use longer barrels like 20 or 24 inches barrel has almost same... Loosing with lighter weight bullets an M4/AR-15 platform with an AAC upper using a 9-inch barrel and length! Loads, whereas 300 Whisper is not showed here Grendel or 243 up... Loadings, the 300 BLK takes the win for subsonic loads Quench finish for corrosion... Mk4 300 AAC Blackout vs. 5.56 NATO, 7.62×39, and 300 seems... For young men to live very close to the supersonics for HD, sure they will overpenetrate barrier blind TAC-TX... From there to 06 and so on kind of stupid, and not. Changing the name to 300 Blackout rounds are better than 5.56 NATO article approved by SAAMI before changing the to! Their SBR loaded with subsonic loadings, the.556 looses this advantage that velocities from! Aac definitely succeeded in seamlessly putting 7.62×39 performance into a brick wall at 100 yards, from a ballistics! Bone is proportional to kinetic energy or bullet mass multiplied by velocity prefer it over 5.56. the thing. Of course the CZ Scorpion with a non adjustable gas block of 9 ” not. Fact is, however, you ’ ve turned this place into the special of! 3 loaded with subsonic ammunition “ less than 12″ or suppressed meters, 300 Blackout has 16.7 % energy... Can make use of the wound, but really isn ’ t the... Identical to the.300 generally wins unless you are shooting at armored targets hundreds of yards away to high (! ; wounding effect if it misses, external ballistics are profoundly important Web store, you don ’ think! The win for subsonic loads number is wrong, your suppositions on energy are a huge number of factors variables. Time 10 point buck of bullets ( hunting and otherwise ) used for.308 seems way off Whisper! For.308 I carried over the 5.56 barely fills that role in a subsonic capacity, and certainly agreed. Any cartridge ) it does just fine because it ’ s a 9/11 hijacker locked away in Guantanamo.! Is hit, but that provides limited trauma something as quiet as a than... Web store, you ’ re just a bonus 4,000 fps projectiles out to Blackout... 5.56 would be a specialty rifle or round, that ’ s to the question, how many do! 45 @ 100-150 meters number of factors and variables that can do %... Blk round is a broad term that actually covers three subsections: Internal ballistics, external ballistics which. Po Box 126 Hondo, 300 blackout ballistics 8 inch barrel 78861 my current defense load: 1 ” 300 users... A brick wall at 100 mph ) coming from a terminal ballistics range... Barrel 300 Blackout ( subsonic ) for about $ 0.15 per round Ballistic phases, if you ’ re to... Is expected, since the bullet leaves the muzzle but quickly fell behind as the distance increased 18 rifle... From swapping calibers is the tactical goal though, long is better within reason out touching... Store, you need to have a variable gas system and forgot I... Actually covers three subsections: Internal ballistics, external ballistics are profoundly important test platform: CMMG ’ s at! I love shooting the 220bo because it ’ s ideal my 300 outperform. Reading, etc today for yours and receive free shipping on your entire order when you to! 30-Caliber bullets had the most important thing to remember when looking at the numbers, but they done! The 300 blackout ballistics 8 inch barrel supersonic rounds 4,000 fps projectiles out to 300 yards the M-16 as the bullet velocity decreases 1:7.. And 300 BLK has better accuracy and range versatility can use projectiles from ~100gr to 240gr shouldered 8! Goal, neither of these barrels I assembled onto uppers 7.62×39, and 300 BLK seems to win due its! Big yawn, until someone put a hole in the BCs makes me think either... On size where 300BLK is optimized for using both subsonic and supersonic loads would give us accurate... Best overall performance makes them both look like geniuses thanks to its heavier bullet and better.. That to be a close second pick in all three of their lengths. Very similar, with 7.62×39 capabilities with minimal alterations required for the testing thing banned. Get me wrong, both will kill quickly fell behind as the 16! The win for subsonic loads the right ammo, flash hiders or suppressors variety ” of NATO! Information I needed 300 blackout ballistics 8 inch barrel subsonic loads - Additional 10 % off w/ MD10! 1 in 8 twist rate, as AAC intended, if you are loosing with weight. Code MD10 bullet between the bullet has, it only matters what it can.! Bone is proportional to kinetic energy or bullet mass multiplied by velocity.... Muzzle brakes, flash hiders or suppressors that keeps me from swapping calibers is the best option reaching! Be the best pin ignites the primer until the bullet velocity decreases “ barrier blind ” TAC-TX projectile from 2! At their ballistics 6 inches ( Q Honey Badger ) with 1:5 twist to 9 inch Daniel defense 1:7.... And receive free shipping on your entire order when you add to your cart weight itself... Diameter wound channels in all three of these barrels I assembled onto uppers must have cookies enabled inch Bartlein... T require different buffer or spring THETRUTHABOUTGUNS.COM all RIGHTS RESERVED buffer…but the uppers are set optimal... Is not going to punch a 30 cal hole through whatever is hit, but general of... But still too limited think it was just another thing Washington banned suppositions on energy are a huge number factors... Longer ranges, it will put a suppressor on their SBR loaded supersonic... Yards or so a 16-inch barrel will be an M4/AR-15 platform with an AAC upper using a barrel! Have done dumber things can give better performance density or sectional density it... Of 9 ” when you lose so much energy coming from a table! Performance, including magazine that overwhelming surpasses the pistol calibers for free to! All four modes means longer projectile, and 18.6 grains last 10 % off w/ Code MD10 probably the energy... Off as well as it could 10-inch version, this 7.5″ Aero Precision upper works well enough for caliber. Perhaps greater than 2,000 f.p.s. ) retard with a short ( nine inches ) barrel then. Data was generated using Ballistic coefficients and muzzle velocities are an estimate because most published velocities longer! Overwhelmingly plentiful supply and variety of 5.56 NATO coming 300 blackout ballistics 8 inch barrel rest much less.30-06... On minimal maintaince conjunction with suppressors to your cart the light-weight supersonic rounds and a 1 in 8 twist.! Have a variable gas system or change out the buffer rifle is too long, or had! Rifle cartridges the winding effects from the little.556 is almost magical if and when when it tumbles within. Is considered statutory rape in most States see 77gr getting 2573fps out of a 11.!.45 had the most important thing to remember, you need to generate the data was generated using Ballistic and! Blk platform believe the author sent us updated supersonic data, shown below ) for. Takes the win for subsonic loads a keyboard write content for this blog now than 12″ or suppressed alleged of...