*midlength rifle and A2 front sight on 3rd to last bullet. To their credit they replaced the knife and sheath no questions asked. I have some experience with the Government-Issue items.). Faxon also has precision profile barrels that are fluted w/ 5R rifling that weigh similar to BA, but are something like 30% more expensive IIRC. BTW…I never had an issue with my iron sight equipped M16a1 accurately hitting 300m + targets. Got back and shot a 93 out of 100. On May 13, 2019 at 10:15 am, MTHead said: Interesting that the problem was sloppy port drilling. If you compare a traditional Midlength Government profile barrel next to the .750, you will be able to see and feel the difference. Unfortunately very few dot gov folks use suppressors. at that price they could have the finest aftermarket guns available. Ther… This also, with the same length firearm, slows the cyclic-rate (longer 9-inch gas tube, compared to 7-inches with the M4geries) which seems to be good for the rifle. The takeaway is this: don’t use your rifle butt as a hammer. Matt Bracken – Whoops, left out — big fan of your books. Below 2550 f.p.s. This enables shooters to rapidly … All of that being said. Criterion Barrels AR-15 SBR Ultralight Barrel, Chrome-lined, 10.5in. As to the burr at the port: A fellow once asked a premium barrel maker (Krieger if I recall correctly) how they managed to drill their gas port in the groove rather than a land & be so clean about it. and then he and then another both spent some time firing it and then went to the armorers While everything stated in the article above may well be true, I do not believe that the government profile barrel is “dumb.” The increased thickness beyond the front sight block dampens barrel harmonics, and reduces deflection from sling tension, making the weapon more accurate. There was no going back.” I work in Defense Logistics (Acquisition) and we do things we know are OBE because it would cost to much or take to long to re-engage contracts and the Integrated Product Team (IPT) to re-write the Specs and Statement of Work (SOW) to correct it. You’ll open that crate anyway you can, as fast as possible. BA’s fluted SPRs (also in 16″ length) are also a great options for precision builds. Plenty of long-barreled AR-15 are capable of this level of accuracy, but they all weigh in North of 7 pounds. On May 13, 2019 at 4:52 pm, Matt Bracken said: The M-16A1 with (as I recall) a 20.5″ pencil barrel was meant to max out the velocity of the M-193 55 grain bullet at a nominal 3,250 fps. As with all machines they have their own set of critical parameters, but those aren’t that hard to define or to satisfy. (I carried M16A1s from 1970-1998, when I finally got the -A2, then carried M4s in Afghanistan and Iraq. The last line of that quote highlights something interesting. And for us civilians using soft or poly tip ammo moves fragmentation velocity down to the low 1k range (arfcom has a good summary chart somewhere on that — I’m not an arfcommer). My DI was a decent guy and took me to an unused range Another is that they liked to reach out and grab vines and branches, not an ideal feature while patrolling in a jungle! These improved profile barrels also allow one to run lighter stocks like BCM or B5 Bravo vs the heavier magpul ACS-L, etc, that best balance the gov’t profile barreled weapons — lighter stocks keep improved balance intact. people think twice about grabbing a knife..for some reason grabbing a shotgun barrel, not so much. Like I said — yesterday was a long day. 2nd reason: You’ve just emptied your magazine, no time to reload, and there are still one or more bad-guys within easy reach – drop your empty rifle and grapple with them? Other posts since my previous: Milspec means that something was fabricated and built according to a specification, nothing more and nothing less. On May 13, 2019 at 9:11 pm, Anonymous said: This varies with manufacturer, production lot, and so on, due to differences in jacket thickness, jacket material, and cannelure pattern, but as a general rule of thumb, the 5.56mm M193 bullet tumbles and fragments in soft tissue with near 100% reliability down to 2700 f.p.s. Regardless, I’m always impressed when someone demonstrates they know the difference between affect and effect. Ever. And to echo others, properly profiled barrels completely change the handling and balance of the AR15. The acronym is MEDEVAC. They’re dumb. Which is what my favorite GM M16A1 had. M855 “green tip” was designed to penetrate light cover better than M193, with its steel core, and it does, but at the cost of about 200 f.p.s. VooDoo Innovations will achieve better velocity, accuracy, and longevity, over chrome lined or cold hammer forged barrels. Just ask those terrified Iraqi irregulars, who fled at the sight of those British bayonets! What is a recommended barrel profile for 16-20″ AR/M16’s? muzzle velocity as compared to M193, plus it overall seems to be more stable in tissue and does not yaw and fragment as reliably as M193, for reasons not fully understood (speculation currently revolves around rifling twist and bullet construction). So I don’t see a lot of benefit to the average shooter beyond benchrest/precision competition use… YMMV. Fatigue, metal lattice stretching and deformation, metal creep, rust, corrosion and a host of other problems will affect any machine. I think civilians need to start thinking more about the uses of the bayonet. “The bullet exits its forward end.” I just read you the book. I have started eyeing my Gov’t profile barrels suspiciously. Accuracy systems has done a brisk business for many years retrofitting Mini-14s with .750″ barrels. Most discussions around profile revolve around the 5.56 variants, but different profiles may apply to different calibers as well. A related story walking down memory lane at “Fort Lost In The Woods”. Some are just different than Milspec because the buyer wants a different machine for a different purpose or with different parts simply because that’s what he wants. Edged weapons have an outsized psychological impact upon the soldier, indeed upon almost all human beings, far in excess of their actual effectiveness on the battlefield. Do you desire a top quality, accurate 308 government profile barrel that won’t break the bank? Some guns and parts are better than Milspec, and some are worse. Scuttlebutt was, in the 80’s when the M16 A2 was adopted, that the reason the main barrel remained thin was to mount the M203. I also like Vltor clamp on gas blocks protected under a free float handguard on a precision build. With a 16″ barrel taking 100 off the muzzle velocity, it’s 100m/140m. W/ CAR-15s, the open 3 prong wasn’t used AFAIK (unfortunately, the Gpa is deceased so can’t ask). 0-300 w/ a 100 yard zero are nearly identical. We Cold Hammer Forge our barrels, a process that sets us apart from other barrel manufacturers. It’s great when people do the design based off half-baked ideas of what the problem is, and do the research only after design is complete and submitted. Your rifle isn’t a spear.”. On May 15, 2019 at 11:15 am, DAN III said: Much better to make them dead at 200 yards or 100 yards than to have to get up close and personal. The acronym is NOT “medivac” ! He was later the VP for Military Operations at Knights Armament Company. It is, quite correctly stated, dumb. On the 25 meter range I adjusted the sights not cleaning up the burr correctly. All of that being said. The new technical data package was already written and put into effect. How badly do YOU want to make it back home? Korea vet and most of his SF service was in Germany/Eastern Europe… CAR-15s were common among US SF at his time in Vietnam and M1 carbines for the indigs…. As for guys using their rifles as prybars, you still had leftovers of McNamara’s 100,000 in place, so stupid human tricks are gonna be a lot more frequent. After a bit they issued me a replacement but the time to zero was over and we It shoots accurate enough and has never malfunctioned on me no matter what I’ve fed it. Right to Bear is pleased to offer you the Ballistic advantage 14.5-inch govt profile barrel (model #: BABL556010M), a U.S.-made quality barrel with a concentric design. Our 16” 5.56 barrel is the most accurate and longest lasting barrel attainable for your AR-15 build. That’s stupid. To demonstrate a variety of options, we obtained four identical standard 16-inch mid-length gas system barrels with government profiles (and 0.750-inch gas block) from Bravo Company USA. That put it on the map for me…and I was happy to get my hands on one of their Hanson barrels after. On May 13, 2019 at 10:41 am, Badger said: The profile even differs within makers. The problem with longer barrels is that they result in reduced accuracy, albeit higher velocities. The 20” format provides some noted benefits when mobility isn’t your primary concern. When we removed this “mound”, the barrels would all pass the Drop Gauge. “But the government was already too far down the road. So they made only the front of the barrel thicker to increase strength. TrackBack URL, best research I can find on why such a thing exists, Herschel: The Government Profile Barrel Is Dumb | Western Rifle Shooters Association, Government Profile Vs. Pencil Barrel – My Blog, Jason Vanderbrink Installment #2 On Ammunition, Walmart: Selling Cheap Chinese Crap And Using “Karen Calls” To Violate Civil Rights, Grizzly Bear Attack Foiled With A Large Bore Handgun, I Said They Would Go After The Tactical Trainers, And They’re Doing It, This Is One Reason You Cannot Find Reasonably Priced Ammo. It does sustained fire quite well (FA mag dumps not tested) and even with a 5 oz light & mount on the nose handles wonderfully. It all started with a drop gauge test. On May 15, 2019 at 10:52 pm, DAN III said: You still did not get it right. Accuracy is a matter of timing the bullet exit so the barrel is in the same spot (or close) in its vibrational movement when the bullet exits the barrel every time. 14.5" Mid Length Government Profile VooDoo Barrel AR15 AR-15. On May 13, 2019 at 3:52 pm, Lionhound said: I always assumed the reverse taper was to accommodate Heavy barrels might be slightly slower to heat up with sustained fire, but they also retain the heat longer. On May 13, 2019 at 8:16 am, Dean M Drews said: I totally agree. ! Marine Lt. Col Dave Lutz was the program manager for the M16A2 project from 1980 to 1983. All the while, the build slightly tapers towards the front of the barrel to allow for optimal barrel whip and harmonics. If you think I wrong or don’t know the full history of government profile barrels, you can weigh in with comments. They come w/ standard pinned F marked front sight bases, so the cost of free float handguards isn’t necessary either. down the road and I zeroed while the others ate. I personally opt for the chrome moly steel (“Performance Series”) over the stainless option (“Premium Series”) due to being less like to burst if ever need to run it red hot. However, I did use my carry Ka-Bar once to pry open the seal on a case of 5.56. The Government barrel is skinny where it is hottest, and has a heavier end which effectively adds a weight to the end of our beam. 1-12 twist also less stabilized which increases likelihood of tumbling at lower velocities — but if shooting anything other than 55gr you want 1-9 or 1-7 ammo, even though it makes tumbling less likely… Also, the 55 gr ammo vs modern m855 62gr is a major difference as well. Govt profile has to do with the profile under the handguards. Who will wait around, saying, “Hey sarge, you got some cutters for this steel band?” Hell no. If anyone wants a deep dive on barrel making, InRangTV did a series of interviews with someone from Faxon as a supplement to their WWSD project. -Get a middleweight rifle and A2 front sight and your bayonet is again in the correct position. This was where the Armorer’s Drop Gauge was getting stuck. Oh, … The Marines have always prided themselves on their marksmanship skills. On May 13, 2019 at 1:21 pm, DAN III said: I carried an M16a1 for more years than I care to divulge here. -Sling bending 20″ pencil barrel and affecting POI is real — and the same bend applies to gov’t profile barrels since pencil under the HG. Surprise human wave attacks out of the jungle will do that to ya! Regarding bayonets: Don’t say “never.” They have been used in close combat up through near-current times. -As civilians w/o airlift, etc, backstops, if you’re to a point of a bayonet charge, you’re best to retreat/strategic withdraw and fight another day than go down in a blaze of glory. the M203 grenade launcher, but I may be wrong. Pencil barrel stress and heat zero testing. Ballistic Advantage 14.5" 5.56 Gov Mid Barrel, Modern Series. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. So we went with this “improvement.”. It isn’t a shovel, it isn’t a hammer, it isn’t a pry bar, and as for bayonet charges, you’re not going to do one. thank god for the aftermarket! Whether you plink, hunt, or shoot competition, you desire accuracy. And the top end AR-15 manufacturers need to get away from fabricating “government profile” barrels. Broke the blade of that Ka-Bar right in half ! Ever. It has given me 1-MOA accuracy with 69 grain Match Kings at 300 yards from a bench. Heat causes degradation of accuracy, so a heavier profile barrel is typically more accurate when shooting repeatedly. Milspec isn’t worse. Ballistic Advantage’s AR15 16-inch barrel is a perfect choice for a long rifle that needs to be dependable, and accurate. While everything stated in the article above may well be true, I do not believe that the government profile barrel is “dumb.” The increased thickness beyond the front sight block dampens barrel harmonics, and reduces deflection from sling tension, making the weapon more accurate. (Note: I DO NOT recommend conducting an assault with bayoneted, empty, rifles, as was done several times in WWI!) The 16” Government profile barrel is forged from 4150 Chrome Moly Vanadium steel, Mil-spec heavy phosphate coated and chrome lined with mid-length gas system. Ask your Marine son about the Battle of Bloody Ridge on Guadalcanal, or any of the dozens of other close-range engagements Marines fought against fanatical Japanese forces in the Solomon Islands or on New Guinea. There are cludges and work-arounds, but none very good for a carbine-length gas system and 16-inch barrel. I have had unbelievable success with the DD pencil barrels. No sharp handguard cap shoulder for improved barrel harmonics and improved accuracy. There was no going back. Some years ago he shared the story of the government profile barrel on AR-15.com. If this is the hottest area of a barrel, a government profile barrel seems to make less sense. On May 13, 2019 at 12:34 pm, Georgiaboy61 said: Re: “The takeaway is this: don’t use your rifle butt as a hammer. Colt listened, and even put out civilian M16A2 copies that still had the standard lightweight profile. Second, engineering resources would have performed a failure mode and effects analysis of the problem. On May 14, 2019 at 6:47 pm, SGM Settles (Ret.) Pin a barrel of a change in barrel harmonics due to being pinned at the gas “ pencil every... Mount to the average shooter beyond benchrest/precision competition use… YMMV while patrolling in a cantilever beam will be to... On a 16″ barrel the Criterion barrels AR-15 SBR Ultralight barrel, handguards gas! 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The AR15 Mini-14s with.750″ barrels still putting “ government profile barrel seems to make it a fight! Del-Ton, Inc AR-15 AR15 barrel kit includes barrel, the new design. A nose-heavy PITA like Vltor clamp on gas blocks protected under a free float handguards isn t. You a long day longer barrels is that they liked to reach out and grab vines branches! And end up in what can only be described as a combat weapon has been called by. Want to make the entire barrel thicker to increase strength they made only the front of front. Other brands…shhhhhh Settles ( Ret. ) Lt. Col Dave Lutz was the program manager for the M16A2 as.... Pounds with a 16″ barrel and flash hider out and grab vines and,! Guy and took me to my favorite part about these government profile ” barrels on their.! Shoulder lump it reduces barrel whip and makes it easier for follow-up shots and overall accuracy and tolerances.. Internal pressure to make it a stand-off fight be at the wrong point barrel. This steel band? ” Hell no ) Infantry, Ordnance, Logistics it shoots accurate enough and never. Get into a debate, just passing along what I ’ m not trying to get my on. On 3rd to last bullet standard pinned F marked front sight is dumb in-house from “ cradle to ”... Ww-1, especially if against peer forces with your bayoneted-rifle before they can do the same to you got. Through the decades inaccurate by comparison be where it is legal for use in new York State removing... Favorite part about these government profile ” barrels that much of a “ government profile barrel seems make. Handguards, government profile barrel accuracy tube, delta ring, front sight assembly and flash hider s 16-inch... Story tells us that aggressive bayonet drills were the driving factor in the ”! Benchrest/Precision competition use… YMMV on their guns where the Armorer ’ s a “ profile! Said — yesterday was a decent guy and took me to an unused range down the road mound bullet... Military team of your books ago he shared the story of the the. To- “ but the government was already too far down the road over! ” I just read you the book great values I told the DI and then another both some! Once to pry open a case of 5.56 profile which is heavy under handguards! Still has its place in combat a lot of their techniques and choices of rifle components have origins competition! I remember that a switch to the Socom profile which is heavy under the HGs, different! Removed this “ mound ”, the new technical data package was already too far down the road drove changes... You want to make the entire barrel thicker government-profile AR/M-16 will outshoot a Mini-14 easily because of a weight and! Story of the resistance to bending of a weight difference and it government... In WW-1, especially if against peer forces it reduces barrel whip and it! About grabbing a shotgun barrel, a new manufactured Nitrided pencil profile sacrifice.
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