450 bushmaster 18 inch barrel 450 bushmaster 18 inch barrel

See this rifle at your nearest dealer, or for more information contact Brenton USA; Tel,: (517) 281-2571; Web: www.brentonusa.com. In any event, a straight walled case in a decent bolt gun seems like implants on a chimp: vaguely interesting from a scientific perspective but largely distasteful and morally reprehensible. Gas System: Carbine Brenton USA Stalker Carbon Hunter 18-Inch . 18 barrels have a mid-length gas system and 16 barrels have a carbine length gas system. We will contact you as soon as this product is available. Barrel- 16" 416R stainless steel hbarbarrel,.. AR-15 .450 Bushmaster 16" stainless steel upper assembly / MlokThis AR-15 .450 Bushmaster 16" steel black nitride upper assembly, This drop-in .450 Bushmaster upper will attach to virtually any milspecAR-15 lower assembly. The sleekness, lightweight and superb balance coupled with its modern looks, tack-driving accuracy and recoil-mitigating magazine-fed semiautomatic action simply screamed utilitarian to me. The trigger is Brentons own Performance Grade Trigger, which is a single-stage drop-in cassette style trigger. : +1-847-513-6201 18 .450 Bushmaster barrel for your Ar15 build. Shop from different lengths and finishes. Barrel.. AR-15 .450 Bushmaster 10.5" Pistol Upper Assembly / Shark-&nb AR-15 .450 Bushmaster 10.5" "Thumper" Pistol Upper Assembly -upgrade your AR. WebOur 450 Bushmaster uppers come with everything you need to start shooting 300 grain projectiles including a bolt carrier group (BCG), rear or side charging handle, upper I then traded the Scout for a Ruger AR-556 MPR, which has an 18.63-inch barrel. mcwoodduck, The rebated rim of the .450 Bushmaster is the same diameter as the .308--.473. Mil Hornady Custom 250 FTX .450 Bushmaster ammunition is listed at 2200 FPS but we wanted to see what the Chambered in .450 Bushmaster, the Stalker Carbon Hunter is fully capable of ethically taking virtually any big-game critter in North America. Brenton USA was born. As of this a.m., I put the 700 .450 Bushmaster project on the back burner. The 458 Socom uses the same bolt face as the 308. -24%. Thanks to the seemingly never-ending dry practice sessions on my grandparents front lawn, I was able to manipulate and accurately shoot that 94 at a subconscious level, just like precision casting a fly rod, the other skill honed on that very same stretch of lawn. WebBC-15 | .450 Bushmaster Upper | 18" Heavy Barrel Parkerized | 1:24 Twist | Mid-Length Gas System | 15" MLOK 133 Reviews $237.99 $419.99 Add to Cart BC-15 | .450 Bushmaster Right Side Charging Upper | Parkerized 18" Heavy Barrel | 1:24 Twist | Mid-Length Gas System | 15" MLOK 95 Reviews $229.49 $404.99 Add to Cart The muzzle velocity of the 250-gr. This is a comlete upper in .450 Bushmaster Caliber with 20" barrel and Izzy Suppressor. But when smokeless powder became available, small and medium-bore high-velocity cartridges gained a solid following and today they dominate the hunting fields. The EXO NiB coating is high in hardness, yet lower in friction than either chrome or nickel Teflon. Lightweight barrels have a .750 gas block Welcome to Shoot-On.com - The outdoor and shooting industry's premier source of up-to-date news, media, entertainment and new product information. Shop now and get Free Value Shipping on most orders over $49 to the HausofArms Fax number is 1-888-270-0569. After this change, Bartt Brenton, found himself in a frustrating position. In Stock. Sign up and get exclusive access to promotions, sales events, pre-order sales & more! For many years, the uncasing of a magazine-fed AR-style semiautomatic rifle would draw instant sneers, regardless of its chambering, regardless of its color. They are Drilled, Reamed, Rifled, Turned, and if Applicable, fluted on CNC Machines. At 50 yards, the rifle clover-leafed three rounds of 300-grain Federal Power-Shok the only ammunition available to us during testing. CC 300 BLK, 2022 Editors Choice Award Winning Holosun EPS and EPS Carry Optics, 2022 Editors Choice Award Winning Sig Sauer SLX 5.56 QD. Buyer's Club $503.49 Non-Member $529.99. I've got a Contender G2 rifle but haven't found any information on whether the frame could take the pressure of the .450 Bushmaster. WebOur 450 Bushmaster barrels have been machined from 416R Stainless Steel. When I moved to the South over 15 years ago, I learned that hunting whitetails could be a lot more expensive here than hunting hogs. Ruger AR-556 MRP.450 Bushmaster Specifications, Colts latest snake is a natural hunter by Dr. Martin D. Topper Detective Harry Callaha. Why not just buy you another AR? Sounds like a good plan , I would go with a 16-18 inch barrel and thread it so you can set the muzzle up for suppressor or recoil reduction. WebCaliber: 450 Bushmaster Handed: Right Rate of Twist: 24 Weight: 7.9 lbs Overall Length: 37.5-38.5" Barrel Length: 18" Ammo Capacity: 4 Series: 110 Series Magazine: Detachable box Stock Material: Synthetic Barrel Material: Carbon Steel Barrel Finish: Matte Barrel Color: Black AccuTrigger: Yes AccuStock: Yes S/S with a Matte Finish. Limited Edition "Alien Green" 30 Round AK-47 MagazineGET YOURS, (This item has been previously added to your cart), Premium Grade AR-15 18" Heavy Profile Barrel, .450 Bushmaster, 1:24, Parkerized. 450 Bushmaster. WebThe 450 Bushmaster was developed for use in AR-15 rifles. WebAPF 450 Bushmaster Carbine Complete Upper Receiver $789.99 (Save $50.00) $739.99 3 models POF USA Minuteman 16.5 in Barrel .350 Legend Upper Receiver Assembly As Low As (Save Up to $66.00) $1,040.00 Newly Added 5 models Brenton USA Scout 18in .450 Bushmaster Upper Receiver $1,349.99 (Save $80.00) $1,269.99 Barrel Profile: Heavy Barrel&nbs.. AR-15 .450 Bushmaster 16" steel black nitride upper assembly, This AR-15 .450 Bushmaster 18" steel black nitride upper assembly, This drop-in .450 Bushmaster upper features4150 Steel Black Nitride Finish, with1 and 24" twistand 15" rifle length slim Mlok free float handguards. The .450 Bushmaster remains popular despite competition in the last couple of years from Winchesters .350 Legend, which fires a smaller .35 caliber bullet and produces less recoil. The MOE stock features multiple QD sockets for attaching the rear point of a sling, however, the only choice for a front attachment is a QD cup located at the rear of the front most Picatinny rail section at 6 oclock. As a fellow lover of the AR-pattern rifle, Brenton quickly discovered his choices of straight walled cartridges were not overly broad in his preferred platform, especially in a factory configured rifle. You can get in touch with our representatives today to learn more about our products and services or simply talk to us about your next quality AR rifle or build. The parent case is a modified 284 Winchester, its simply cut to 1.695 and also utilizes a small rifle primer. The item you are trying to purchase is currently out of stock.Please enter your name, email, and phone number below. And if you see the stats for the barrel lengths on the MGM site the 20" length is the sweet spot. On the other hand, when I chronographed a couple of loads through the Scouts short 16.1-inch barrel, I found that this short barrel wasnt producing all the performance I expected from the .450 cartridge. For individual Officer, First Responder, and Military pricing please make sure you are logged in. 1 in stock. Building a .450 Bushmaster AR-15 Hunting Rifle with Brownells The ammunition that Ill be looking at in this article comes from two companies: Hornady and Buffalo Bore. WebPrefit Barrel for a Savage Magnum/Large-Shank Bolt Action; 450 Bushmaster (451 Cal) 20 Inch.800 Varmint; CM Matte; 1:20 Twist; Integral muzzle brake; Ready to ship! spec. Wolfpack Armory Side Charging Stripped Rifle Caliber, POF USA Minuteman 16.5 in Barrel .350 Legend, Cry Havoc Tactical 223 QRB Kit Pistol Calibers. JavaScript seems to be disabled in your browser. Now, what I quickly learned was that, while your standard AR chambered in 5.56 NATO may be ideal for bipeds, it isnt necessarily the optimal choice for medium to larger sized game animals. boar at 50 yards. Condition. More than ten companies have produced rifles chambered in .450 Bushmaster over the last 15 years, and about the same number of companies produce .450 Bushmaster ammunition with various bullet weights and styles today. Get 10% Off - Subscribe to Our Email List, Toll-Free: +1-800-504-5897 Give me some feedback. I would have to agree with Lloyd Smale, this sounds like a cool and fun project. Includes 4 Rd. Rating: Subscribe to back in stock. eCommerce Software by 3dcart. We offer this 18 These included Underwoods 220-gr. Have you considered selling all your .450 Bushmaster stuff and getting a .45-70? I will ship frames to all 50 states including California! It is double stress relieved This assembly includes 7" heavy profile .450 Bushmaster barrel with slim 7" free-float handguard, available in y.. AR-15 .450 Bushmaster 7.5" Pistol Upper Assembly / Mlok Free Float& Moriarti Armaments is your one-stop solution for high quality AR-10, AR-9, AR-45 & AR-15 rifles, pistols, AR-40 build kits, ammunition, and upper assemblies. Just a guess. Visa, MasterCard, Discover and American Express are accepted. 8). The pull weight is user adjustable from 3.5 to 6.5 pounds and the trigger shoe provides a nice contour that is not only functional but atheistically pleasing. Limited Edition "Alien Green" 30 Round AK-47 MagazineGET YOURS. come on guys. As soon as the cartridges proprietary status was lifted we ordered a reamer and started building barrels. The power of the .450 Bushmaster cartridge, especially when fired in an 18- to 22-inch barrel. FTM, Hornadys 250-gr. Check this out by Martin Topper When someone s, Proven performance, light weight, and fast acquisition deliver a high performance-to-price, Henrys Homesteader 9mm Carbine is a semi-automatic rifle that is compact, accurate,, Accuracy from the bench means little if you cant steady the rifle on a hunt! Only thing id do differnt is wack that barrel to 16-18 inch. Probably would not be that great of an advantage between the calibers. Might even go to a 18 or 20 inch barrel length. twist Overall Length: 36.25 in. Instead of accepting this, he saw an opportunity to not only solve the problem for himself, but for an entire region of hunters spanning multiple states. Come join the discussion about hunting, fishing, survival, archery gunsmithing, optics, reviews, accessories, classifieds, and more! It was love at first sight. Muzzle Thread:5/8x24 Don't forget the AeroShell 33MS Mil Spec Armorer's Grease! Like someone said, it uses the rebated rim of the AR-15 bolt. A fixed Magpul MOE stock was chosen for its extremely consistent cheek-weld and massive internal storage capacity. Brenton USA Ranger Carbon Hunter 22-Inch . $1,025.00. With an everything you need, nothing you dont mindset, Brentons rifles quickly gained notoriety among Midwestern hunting circles who shared his passion and desire for a slicked-up, big-bore sledgehammer of an AR in .450 Bushmaster. range. Comes with S/S Barrel Nut. These barrels are precision machined from a 4150 Mil-Spec steel blank with a 1:24 twist. At first, I used guns chambered in .223, .300 BLK, and .308 Win. Precision machining and production ensure the correct component interface. Group size at 65 yards was .837 inches for the Underwood FTM, .955 for the Remington Accutip, 1.158 for Hornady FTX, and 2.325 for the Federal JHPagain indicating that the Federal loads bullet was too heavy for this particular rifle. The Fora platform includes forum software by XenForo. All rights reserved. Hornady FTX load increased from 2162 fps to 2249 fps when fired from the MPR. Federal load only generated 2422 ft-lbs, making this bullet weight appear to be too heavy for the powder capacity of the .450 Bushmaster case with currently available powders. If you go 45-70 can you go bolt action ? Cooper had envisioned a large bore cartridge in a semi-auto rifle capable of one-shot kills on large game animals out to about 250 yards. Combining the two, Brenton began building rifles for the serious AR hunter, with an objective of providing a hunting-specific platform that took full advantage of all the benefits the AR brings to the table, but in a premium yet no-nonsense form factor. Get the same barrels again. YOU MAY ALSO BE INTERESTED IN THESE PRODUCTS, I am shooting 1" groups with this barrel at 100yds with hand loads using two different kinds of bullets both produced good groups but it took some work to get the barrel to work it would not work at first.I had to drill the gas port bigger and I polished the chamber and feed ramps and I used a different buffer and spring but after I did all this I am pleased with the accuracy and they took down my first review because it was not positive I've always been curious if the reviews online are censored and now I know they definitely are because this is not the first time it's happened and not the only place its happened, The barrel finish is nice and I shot 1" groups at 50yds with 2 different bullets Hornady FTX and Speer deep curl hollow points and it was basically the same at 100yd I'm pleased with the accuracy but it is undergassed and it took some work to get it to cycle right. Just add this .450 Pistol Flattop Upper to your AR15 Pistol Lower Receiver, and you are ready for the range. LeGendre developed what was coined the 45 Professional cartridge, and later delivered a functional AR-15 to Cooper in said chambering. The AR-15 is really a modern marvel and can be chambered in a multitude of calibers to fit your specific needs, even in calibers that may give you pause. Buyers must be 18 years of age. a man has to dream dont he? The mere sight was an instant turnoff for a majority hunters whose paths wed cross afield. Twist Rate: 1/24 But the motivation for modern hunters to find a suitable alternative to a shotgun firing slugs was high, to say the least. With a velocity of 2200 FPS, the Hornady 250 Gr. Dylan at MGM had some velocity testing on these calibers by an independent 3rd party, check out this link it is extremely informative and will answer a lot of your questions regarding barrel length and velocity. Id like to see this rifle more available rather than being only sold in limited quantities online (as of this writing). In my mind, a modern .44 Remington Magnum was born with a relatively flat trajectory out to about 200 yards, delivering a 250-grain chunk of high-performance lead on target at eye-popping levels of foot pounds of energy, all out of my preferred magazine-fed, semiautomatic platform. Dimpled for gas block screw alignment. In 2014, Michigans Natural Resources Commission approved a regulation to allow the use of rifles capable of using .35-caliber or larger ammunition with straight-walled cartridges that have a minimum case length of 1.16-inches and a maximum case length of 1.8-inches to harvest deer in limited firearms zones. Darned if he didn't pull out a roll that would choke a mule and commenced to peel off the green (made me wish I had jacked the price up). For those who can appreciate fine craftsmanship and thoughtful design all in a practical hard-hitting straight-walled package will have a tough time doing better than Brentons Stalker Carbon Hunter, especially when chambered in .450 Bushmaster. Bottom line about any wildcat round these days can be matched by something commercial. One in .223, which I shoot a lot and the other in .308 which I don't shoot much. You must have JavaScript enabled in your browser to utilize the functionality of this website. One such load is the .450 Bushmaster, a concept originally dreamed of by none other than the late Col. Jeff Cooper, and made a reality by Tim LeGendre, and eventually modified by Hornady Manufacturing. Standard right hand ejecting. Ive killed hogs with my beowulf and watched them killed by 450s and 308s and am here to testify that the 450 does hit harder at close range. Rating: Subscribe to back in stock. That convinced me that the .450 Bushmaster was generally superior to smaller cartridges for hunting hogs. FTX, Remingtons 260-gr. Specifications ROCKote Colors / Finishes. AR-15 18" Heavy Profile Barrel, .450 Bushmaster, 1:24, Parkerized. Tue: 8:00 am 5:00 pm This assembly includes 10" heavy profile .450 Bushmaster barrel with slim 10" free-float handguard, a.. AR-15 .450 Bushmaster 10.5" "Thumper" Pistol Upper Assembly - AR-15 .458 Socom 12.5" Upper Build W/ 12" Slim Rail / 3" ShroudFeatures:Barrel Length: 12.5" Melonite Barrel The new .450 Bushmaster Patriot Predator ($498) is a bolt-action rifle is built on a forged and machined carbon-steel receiver and fitted with a 16.25-inch barrel rifled at a 1:24 twist rate. Premier Accutip load, the velocity increased from 2075 fps to 2160 fps and muzzle energy increased from 2485 ft-lbs to 2693. Bigger and more dangerous game required larger bullets. 416 Stainless Steel, Heat Treated to RC 28-32 Hardness, and Stress Relieved. Like many young hunters of my generation, I too grew up carrying a hand-me-down lever action Model 94, except mine was chambered in .44 Remington Magnum. if you go 45-70 in a lever gun you limit bullets you can use. The 450 Bushmaster uses smaller bullets. 450 BUSHMASTER VELOCITY ~ 16" VS 18" BARREL. The Ruger 452 AR Trigger in the AR-556 MPR is very precise. Not giving up on it entirely. It is double stress relieved before rifling and thermally stress relieved after to ensure the best possible accuracy and performance. Also, the .450 Bushmaster uses a .452 bullet. Aero Precision Low Profile Gas Block .936" - No Logo - Nitride, Aero Precision Melonite Gas Tube - Rifle Length, Aero Precision Stainless Steel Gas Tube - Rifle Length. Unfortunately, I was in for a real surprise when I shot a 427 lb. All rights reserved. WebDetailsRadical Firearms has you covered with their quality precision made 450 Bushmaster barrels perfect for your next AR-15 build. Be the first to know about sales, surplus items, and new products.          Email *, Example: Yes, I would like to receive emails from Shoot On. Blackpowder Mortar & Cannon by Seacoast Artillery, Hand Loading Rifles & Handguns by Diamond K Brass, Bolt Action Rifles Sponsored by Camera Land. 9AM-5PM CT Sat-Sun (Chat & Email Only). These uppers will mount right on your mil. We also offer an extensive line of AR-15 shooting accessories and gun parts, all at great low prices and made in the USA. REM 700 5.56 NATO 18 INCH BARREL. CALIBER:.450 Bushmaster; UPPER RECEIVER: Forged A4; BARREL: 16 Inch Stainless Steel, 1:24 Twist, Cryogenically Treated; MUZZLE DEVICE: RRA OPERATOR BRAKE, 5/8-32 THREAD ; GAS BLOCK: Low Profile Gas Block, Then sometime in the 1990s, Jeff Cooper began calling for a bigger-bore thumper cartridge that would allow hunters to use an AR- type rifle to effectively take big game with a single shot at distances out to 250 yards. Radical Firearms has you covered with their quality precision made 450 Bushmaster barrels perfect for your next AR-15 build. When the time was right, that rifle would snap up and onto my shoulder; my eye perfectly aligned behind the peep sight, as I took the slack out of the trigger; milliseconds later the rush of recoil was absorbed by my boney shoulder. Barrel Profile. With a "normal" 5/8x32 450/458 muzzle brake installed, there's about 3/32" of the barrel showing all the way around it . The 18-inch barrel is conveniently threaded to accept your choice of muzzle device or sound suppressor, with our preference being the latter especially when paired with subsonic 450 Bushmaster in the near 400-grain range. The law started in Michigan but spread to neighboring state Ohio and then on to Pennsylvania and Indiana. WebBrenton USA Guide 18in .450 Bushmaster Upper Receiver $1,349.99 (Save $80.00) $1,269.99 APF 450 Bushmaster Carbine Complete Upper Receiver $789.99 (Save $50.00) $739.99 2 models Radical Firearms Complete Upper Assembly .450 Bushmaster, 15in MHR, Single Ramp, Black, Box (11) $619.95 (Save $31.00) $588.95 18 Light-weight barrel weighs 1.61 pounds. I don't see why it wouldn't work, have used a couple of converted rifles that belong to buddies that where done up in 450 Marlin and a 458x2" American, basically the same but belt thickness is a tad different, loaded up with the 350jhp they have done great work on hogs and a couple of black bears. Accuracy, Accuracy, Accuracy. All controls, including the bolt release/hold open, magazine release, charging handle, rear takedown pin have been extended and the triggerguard has been enlarged all in an effort to increase the platforms usability with gloved hands in the cold winter months the Midwest is known for. If you want an affordable gun that can hunt anything from hogs to semi-trucks, this barrel is the one for you. Thankfully those times have changed, and while I cant speak for the hunting community as a whole, within the regions that Ive been hunting these last few years, Americas rifle has finally gained acceptance by even the most traditional traditionalists among us. We want to ensure that making a return is as easy and hassle-free as possible! I'd keep the .308 as is, and as suggested go with a .444 or .45-70. Unfortunately, the .350 Legend also produces significantly less muzzle energy and its smaller-caliber bullets do not have the wounding potential of the .450 Bushmasters larger projectiles. Frames must ship to an FFL, I am an FFL and will include a copy of my certificate to your FFL with shipment. You would have a real thumper for close in work and one not everyone has. I'm not a gunsmith, so this is conjecture on my part, I would think the bolt head would work w/o altering it. In the days before smokeless gunpowder, caliber selection was rather simple. 2 oz. I KNOW WHAT SEX I WAS BORN!! WebGreat Lakes Firearms AR-15 Rifle, .450 Bushmaster, 18" 416r SS Barrel, 15.25" M-LOK Rail, 6 Position M4 Stock, Flat Dark Earth Cerakote- GL15450SS FDE. A high-phosphorous electroless nickel base coating ensures excellent corrosion resistance not found in other nickel-boron finishes that utilize a single, thinner layer; all equating to unquestionable reliability. Pattern 14 Enfield rifles also convert to .45-70 well why go to all that work when a simple barrel switch will work ? I loved, and respected that rifle; it was lightweight (at least during the first hour), hard-hitting and pretty handy considering the alternatives for me at the time. VETRAN LIKE MY FATHER AND GRANDFATHERS BEFORE ME. .450 Bushmaster Barrel is a great option for any AR build! Switching to Remingtons 260 gr. Barrel Steel: 41V50 Also, haven't seen custom Contender barrels being offered in .450 Bushmaster or Thumper as originally called. You also pay for innovation . Diameter at Gas Block: .875 Barrel- 18" 4150CMV steel black nitride hbarbarrel.. AR-15 .450 Bushmaster 18" steel black nitride upper assembly, This AR-15 .450 Bushmaster 7.5" Pistol Upper Assembly / Mlok Free Float- Justadd this .450 Pistol Flattop Upper to your AR15 Pistol Lower Receiver, and you are ready for the range. Marty. Looking at the ballistics between the two I'd say realistically its a terrible waste of a good Rem 700 in 308. Might even go to a 18 or 20 inch barrel length. MARTY, Watch this video for an explanation of the bushings. As a career engineer, Bartt Brenton spent his career working at the worlds largest superconducting cyclotron laboratory located at Michigan State University. Which brings me yet another reason to love the AR-pattern rifle caliber choices! The 45-70 a very old good round has limitations . of the .338 bullet tips the scales toward the .338. Heck go for itgot any 308 ya wanna sell ? WebThese are TC Encore Stainless Steel barrels 20" long muzzleloader contour (.865" diameter, any factory muzzleloader forend will work) chambered in 450 Bushmaster with a 1 in 20" twist and 5R rifling. and for your purpose seems like it would fit the bill, and did I mention it sounds cool too? JHP. Brenton states each trigger is hand-tuned and test-fired (at their test bench) for optimal performance by one of their expert trigger technicians as the final quality check before its ready for delivery. However, what does practicality have to do with anything? Magazine. Be the first to know about sales, surplus items, and new products. Second Media Inc., 30800 Telegraph Rd, Suite 1921, Bingham Farms, MI 48025 USA. THEY ALSO THREADED TO A 11/16-24 THREAD WITH CAP. $ 263.28 $ 199.00. A forum community dedicated to the great outdoors and hunting enthusiasts. Even so, he kept on going and didnt stop until he ran into a tree and knocked himself out! It looks a bit goofy, but shoots fine. WebPremium Grade AR-15 18" Heavy Profile Barrel, .450 Bushmaster, 1:24, Parkerized. Web604206917027. Finish is good, rifling is sharp, gas block journal was good and tight on the 2 different blocks I tried. When it comes to straight-walled cartridges compatible with the AR-15, pickings are slim. The primary mission of the Ruger AR-556 MPR and its .450 Bushmaster cartridge is to cleanly take big game at close to moderate range in forested and semi-open areas. Caliber: .450 Bushmaster Barrel: 18 in., 1:24 in. Be it new tactics for hunting or customizing your firearm - we cover it all! All items listed for sale on this website are subject to availability. As easy as the wind changes directions, so do topics on forums. Sun: Closed, .450 Bushmaster Embossed Ejection Port Cover - Right Hand. The 450 doesn't compare well with the 308. AND THEY WILL COME WITH A 6 HOLE BASE. Email: sales@opticsplanet.com, 9AM-7PM CT Mon-Fri All my admiration for that old Winchester seemingly evaporated the first time I laid hands on an AR-style rifle. Have you never did something just to do it. If you don't see something you would like, email me for a quote and availability. WebCaliber/Gauge: .450 Bushmaster. If for any This makes me wonder how much more performance I might get out of the Ruger American Rifles 22-inch barrel when chambered in .450 Bushmaster. Heavy profile, the These dimensions were instituted to reduce the likelihood of a bullet traveling far enough beyond an intended target to pose much of a threat.