Q\u2019s Lineup: From top to bottom The Fix in 8.6 Creedmoor, The Mini Fix in 300 Blackout, the Honey Badger in 300 Blackout.<\/figcaption><\/figure>\n\n\n\nLet’s look at how the cartridge is made. Rather than starting with something like a .308, the way the .338 Federal does, we start with a 6.5 Creedmoor. We then cut the case down and neck it up. Is that confusing? It took me a minute to wrap my head around it too. Here is why it is done though\u2026<\/span><\/p>\n\n\n\nIt comes down to science, math, and magic.<\/figcaption><\/figure>\n\n\n\nThe case length of the .338 Federal is 2.015\u201d where the 8.6 Creedmoor case is 1.685\u201d in length. Why does this matter? Well, if you want the ability to run heavy subsonic loads, 280 to 360+ grains, the longer 338 Federal case will put the ogive of the projectile back inside the case. This is bad, your bullet will not perform.<\/span><\/p>\n\n\n\nOn top of that, while starting with that \u201csmaller\u201d case capacity, it offers more consistent ignition. Especially with those heavy subsonic loads, in turn, giving you better performance shot to shot. <\/span><\/p>\n\n\n\nDue to the cartridge length, 8.6 Creedmoor will feed out of .308 Winchester magazines. What does this mean? It will fit all of your magazines. Be they SR-25 patterned, AR10, Accuracy International, or even the magazine on your TIKKA rifle. And, here is where it is pretty magical since the cartridge uses the same bolt face as a .308, it is just a matter of swapping barrels.<\/span><\/p>\n\n\n\nA Noveske AR10 pistol re-barreled with an 8.6 Creedmoor barrel by Q for testing.<\/figcaption><\/figure>\n\n\n\nAnd speaking of barrels, all of the .338 Federal data for SAMMI is collected from a 24\u201d barrel with a 1\/10 twist. Nope, hard pass. A 1\/10 barrel can never stabilize heavy subsonic rounds. The twist rate is too slow, the same problem that plagues subsonic 308 \/ 7.62 NATO. That slow of a twist rate will fire heavy bullets, but without the stabilization of a faster twist rate, they won\u2019t be accurate at all.<\/span><\/p>\n\n\n\nThe 8.6 Creedmoor is being designed around a fast barrel twist. Q is still kicking around prototypes anywhere from 1\/3 twist to 1\/5. The 1\/3 does an amazing job of stabilizing big heavy bullets and providing the shooter with good accuracy. It also performs well with light supersonic loads depending on the bullet type. Poorly made bullets will twist apart in flight. So, Q is finding the sweet spot with respect to heavy and light .338 projectiles.<\/span><\/p>\n\n\n\nFrom left to right: .300 Blackout, expanded .300 Blackout over an expanded .338 projectile, 8.6 Creedmoor dummy rounds.<\/figcaption><\/figure>\n\n\n\nAs to barrel length and the 24\u201d 338 Federal\u2026 <\/span>Again, no. The 8.6 Creedmoor is designed around a short barrel. About 12.5\u201d to be exact. Why? Because it sucks dragging a 24\u201d barreled firearm through the woods, a doorway, the trunk of a car, or pretty much any other space you can think of, let alone if you want to thread a silencer onto said barrel. So, the 8.6 Creedmoor is being optimized for a short barrel.<\/span><\/p>\n\n\n\nDoes this mean you will have to pay a $200 tax to the NFA for a short barreled rifle? Yes, or you can purchase a pistol. SB Tactical makes some amazing pistol braces which can greatly increase one’s ability to use a pistol if needed. Q will be releasing their Fix Rifle as a 12.5\u201d barreled 8.6 Creedmoor pistol, utilizing an SB Tactical folding pistol brace when the round becomes available.<\/span><\/p>\n\n\n\n12.5\u201d barrel Noveske 8.6 Creedmoor pistol with Q silencer and SB Tactical pistol brace. Small and capable.<\/figcaption><\/figure>\n\n\n\nAnd speaking of availability, Hornady is leading the charge. In recent years they have done an amazing job bringing some great high-quality cartridges to market. As a result, you will probably end up with easy access and availability to the 8.6 Creedmoor cartridge.<\/span><\/p>\n\n\n\nA number of different test loads for the 8.6 Creedmoor.<\/figcaption><\/figure>\n\n\n\nWe probably could have started this whole article with the question of “Why?”<\/em> Why bother with 8.6 Creedmoor? That is a fair question. And the answer is because it provides an amazing melding of supersonic and subsonic performance for the .308 platform. If it helps, think of it as .300 Blackout\u2019s big brother. We are taking a cartridge, cutting it down and putting a larger projectile into it, and optimizing it for a shorter barrel. That gives us better super and subsonic performance out to a moderate range than was previously available.<\/span><\/p>\n\n\n\nNow I guess you\u2019re wondering if it does in fact perform. I\u2019d say so, out of a 12.5\u201d barrel the 8.6 Creedmoor with a 155GR bullet at 2500FPS brings 2,100 ft. lbs. of energy at the muzzle. With supersonic loads, it will outperform a 18\u201d barreled .308 Winchester out to 300 yards.<\/span><\/p>\n\n\n\nUsing 300+ grain expanding subsonic loads, the 8.6 Creedmoor generates 650+ ft. lbs. at the muzzle and is still maintaining 550 ft. lbs. out at 600 yards. For reference, that is more energy than a 45ACP at the muzzle\u2026<\/span><\/p>\n\n\n\nBolt action or semi-automatic? Yes. The 8.6 Creedmoor performs equally well out of a bolt action rifle as it does out of a gas gun. I\u2019ve shot the 8.6 Creedmoor out of a Fix Rifle as well as a Noveske AR10 Pistol. The 8.6 Creedmoor had no issues cycling the Noveske or locking back on an empty magazine while shooting supersonic and subsonic rounds.<\/span><\/p>\n\n\n\nBoth the bolt action Fix by Q and DI gas gun by Noveske worked great for me.<\/figcaption><\/figure>\n\n\n\nIs the 8.6 Creedmoor quiet when running it through a silencer? Absolutely. Like with any supersonic round, you will have the associated crack while firing the round. But the real magic is in the subsonic loads. Out of a bolt action, it is about the same report as a .22 LR suppressed. That’s ridiculously quiet considering the projectile you\u2019re sending down range. Subsonic rounds through the gas gun are quiet, but suffer the same as any other round. You have a fair bit of noise coming from the ejection port and the cycling of the gun. But it is still quite pleasant to shoot.<\/span><\/p>\n\n\n\nAgain, circling back to the why. While some of my friends have dropped large game, including elk, with shots at over 1,100 yards, that’s not the norm. If you have the capability, good on you. Most hunters lack not only that skill to take an ethical shot at that range, but frankly the opportunity. Most game is taken anywhere from 50 to 250-300 yards. By way of example, the elk I shot last year was just over 100 yards away. Just about the maximum distance I could have shot. Why? Because up in the part of Idaho where I live the only shots you get are in clear cuts. In the trees, a deer or elk could be 20 yards away and you\u2019d be hard pressed to see one, let alone get a shot.<\/span><\/p>\n\n\n\nNot to mention who wants to walk through the woods with a 24\u201d barreled rifle? How about a suppressed 24\u201d barrel so you don\u2019t end up with permanent hearing loss? Nope. The 8.6 Creedmoor will allow a shooter to carry around a much smaller and lighter weapon system. How about a 12.5\u201d barreled Fix with a folding pistol brace? Climbing up to a tree stand, crossing a stream, hiking into the mountains? All the performance needed by most sportsman in a nice compact package.<\/span><\/p>\n\n\n\nThe Q Mini Fix in 300 Blackout above the Q Fix in 8.6 Creedmoor.<\/figcaption><\/figure>\n\n\n\nIs this the perfect cartridge? No. Is it the perfect cartridge for supersonic and subsonic performance out to medium ranges with a short barrel, the ability to run in bolt actions and semi-autos, feeding out of standard .308 magazines, with the option to run it with silencers for incredibly quiet supersonic performance? Yes, it absolutely is. <\/span><\/p>\n\n\n\nWill the 8.6 Creedmoor be called 8.6 Creedmoor? Possibly, but who knows. It may end up as the .338 Creedmoor, .338 Blackout, 8.6 Blackout\u2026 Time will tell.<\/span><\/p>\n\n\n\nTest rounds in Hornady made cases stamped 338 Creedmoor.<\/figcaption><\/figure>\n\n\n\n***Shop GunsAmerica for your next rifle***<\/a><\/b><\/p>\n\n\n\nFAQ<\/h2>\n\n\n\nCan 8.6 Blackout use .308 magazines?<\/h3>\n\n\n\n Yes. The cartridge was designed to feed from .308 Winchester magazines, including SR-25 and AR-10 patterns, and to use the .308 bolt face, so a rifle conversion is mostly a barrel swap.<\/p>\n\n\n\n
Is 8.6 Blackout good for deer and hogs?<\/h3>\n\n\n\n For most real hunting distances, yes. Q designed it around shots inside about 300 yards, and our UP-10 reviewer carries a supersonic round in the chamber with subsonic loads for quiet, close shots.<\/p>\n\n\n\n
Do I need an SBR stamp for 8.6 Blackout?<\/h3>\n\n\n\n Only if you put a barrel under 16 inches on a rifle. Q built the cartridge around a 12.5 inch barrel, which means a registered short-barreled rifle or a pistol configuration. Check federal, state and local law before you build one.<\/p>\n","protected":false},"excerpt":{"rendered":"
Pick 8.6 Blackout if you want a short, suppressed rifle that throws heavy subsonic bullets quietly and still hits hard with supersonic loads inside a few hundred yards. Pick 6.5 Creedmoor if you want to shoot flat and far with a deep bench of factory ammo and rifles. The two are related: the 8.6 starts […]<\/p>\n","protected":false},"author":98,"featured_media":97119,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_specdata_upc":"","_specdata_placement":"","footnotes":""},"categories":[282,694,1330,37],"tags":[1329,132,102,499,1325,1324,343,69],"featured":[],"hunt365":[],"class_list":["post-97116","post","type-post","status-publish","format-standard","has-post-thumbnail","category-columns-ammo-tests","category-gun-reviews","category-ivan-loomis","category-gun-reviews-rifles","tag-8-6-creedmoor","tag-buzz","tag-feature-articles","tag-hornady","tag-noveske","tag-q","tag-rifle","tag-suppressor"],"yoast_head":"\n
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Bullet weight, velocity and barrel length compared, plus 8.6 Creedmoor vs 8.6 BLK.","breadcrumb":{"@id":"https:\/\/gunsamerica.com\/digest\/8-6-creedmoor\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/gunsamerica.com\/digest\/8-6-creedmoor\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/gunsamerica.com\/digest\/8-6-creedmoor\/#primaryimage","url":"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2018\/09\/86-a-2.jpg","contentUrl":"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2018\/09\/86-a-2.jpg","width":1200,"height":859,"caption":"Q\u2019s Lineup: From top to bottom The Fix in 8.6 Creedmoor, The Mini Fix in 300 Blackout, the Honey Badger in 300 Blackout."},{"@type":"BreadcrumbList","@id":"https:\/\/gunsamerica.com\/digest\/8-6-creedmoor\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/gunsamerica.com\/digest\/"},{"@type":"ListItem","position":2,"name":"8.6 Blackout vs 6.5 Creedmoor: Which One Fits Your Rifle?"}]},{"@type":"WebSite","@id":"https:\/\/gunsamerica.com\/digest\/#website","url":"https:\/\/gunsamerica.com\/digest\/","name":"Gun Reviews and News | GunsAmerica.com\/Digest","description":"Gun Reviews, Industry News, and Product Reviews for Rifles, Pistols, Revolvers, Shotguns, Optics, and Ammunition. 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