I have it on good authority that DPMS will be offering an A2 buttstock with a real recoil pad in the near future. The 300-grain (19 g) round offers a supersonic muzzle velocity of 1,900 ft/s (580 m/s) and 2,405 ft⋅lbf (3,261 … As of now, they only offer a 16-inch chrome barrel with a flash hider (good to protect the crown, even if you're not concerned about flash), and no front sight. The .458 SOCOM (11.63×40mm) is a moderately large round designed for a specialized upper receiver that can be mounted on any AR-15 pattern lower receiver. The rising popularity of the AR-15 and its rapid move to the dark timber has generated a need for that kind of muscle in the AR. .458 SOCOM, 16” Parkerized Heavy Barrel, 1:14 Twist, Carbine Length Gas System, 15” MLOK Rail|Side Charging Upper Special Price $370.99 was $482.99 Add to Cart Marty ter Weeme, founder of a company called Teppo Jutsu, L.L.C., went to work. Read some of his stories about black bear hunting. Comments: This round is designed to feed from standard G.I. Velocity range or timing goes to pot and reliability suffers. Maybe they have a magic trigger finger. The consensus was a one-shot stop would sure be nice. The larger ammo will even use .223/5.56 magazines, though a standard capacity thirty round magazine will only physically fit nine .458 rounds. The real cleverness in the design of the .458 SOCOM is that nothing but the upper need be changed — same magazine as the .223, same buffer spring in the buttstock, same everything. My test rifle is a Rock River A4 upper and lower, flat top receiver with a 3-9 scope mounted on medium rings. You get the TAC-15. It does take a few to break in with feeding that large round into the 458 feed ramps but after few it was fine. An expert offers some tips for night fishermen. This cartridge and the next one, the .50 Beowulf, are good at close to medium range on all types of targets. The one component that is currently in short supply is cases. AR Complete Upper Receivers. AR-15 .458 SOCOM Upper Build with 16" Barrel and 15" Keymod Super S... Add to Cart. I would imagine folks hiking, fishing or living in big bear country might also opt for the heavy weights. They are made by Starline and available from them, Midway or Graf & Sons, but due to a fast-rising demand and the general shortages we've experienced since the last election, there are currently brass shortages, and orders are going on backorder. The caliber as the NRA’s Shooting Illustrated explains, “uses a lengthened .50 AE case with a rebated rim and is necked down for a .458-inch bullet.” A variety of loads are available in the 250 to 600-grain range. That's a tall order. The pressure and burn rate must also be close to that of the .223 or timing goes to pot, you tear things up, and reliability suffers. It would quiet things down quite a bit and probably add a bit more velocity. One of the more interesting—and powerful—upgrades for the standard AR-15 rifle is an upper receiver in .458 SOCOM. There are several ways new cartridges come into the world. That's not the way things are in the real world. Barreled Upper Receivers - 5.56 Nato. Corbon factory loads with what appears to be a 300-grain Sierra FBHP were the only loads I had available. The rifle is fitted with the Rock River match trigger, but no other modifications are made — pretty much stock as delivered by Rock River Arms. The recent rush of short and super-short cases that followed the .300 RUM are a perfect example of this, as are the .444 Marlin, .338 Federal along with many others. That puts it squarely in the territory of the modern .45-70 or .450 Marlin, and it will do anything those rounds will do. Need some witching hours strategies for bass fishing? The Government bought it, Colt bought the design rights from ArmaLite, and AR-15s wearing a Colt logo tromped the rice paddies of Vietnam for years, going on to become the primary military firearm to this day. Coming with top-notch accuracy, power, and terminal performance at a very reasonable price tag, this is the .458 SOCOM ammo that most shooters love. In the world of bolt actions, levers, single-shots, and even handguns, hunters have an abundance of big-bore .45 caliber options to choose from, ranging from the .458 Winchester down to the .454 Casull. Stay tuned. Dies are available from Hornady, Lee, CH, and soon will be available from Redding. Great company fast shipping. Barreled Upper Receivers - 5.56 Nato. The AR craze has brought us several cartridges that are designed to work with the standard .223-length case and drop deer in... Hunter Bill Vaznis has had some close encounters with tooth and claw. A .458 upper can transform a rifle from a .223/5.56 target and self-defense rifle to a big bore, big game rifle. Big, heavy bullets moving at moderate velocities are proven game-stoppers when a fast stop is the vital objective. In short, a short, fat case (1.575) with a very small rebated rim (.473), minimal taper, and a slight shoulder. If you're like me you soon get pretty suspicious of gun writers who seem to get sub 1-inch, 100-yard groups from everything they shoot. Find 458 Socom Reloading Dies, and 458 Socom Die Sets for sale here: Get the right 458 SOCOM Die or 458 SOCOM Die Set for your press here at Midsouth. Pulling the bullet showed a powder charge of 29.2 grains of a flake powder that filled the case to about 2⁄3 capacity. A 300-grain, well-constructed bullet moving at about 2,000 fps is 150- to 200-yard bad medicine for just about anything, including bear and moose. Parts need to be changed to make them function. The .458 bullet rapidly loses energy, however, dropping to 500 foot-pounds at 500 yards. (in stock) 0.0. m4 5.56 upper receiver groups. Read an account about a wolf hunt in the wilds of Ontario -- at temperatures as low as 25 below zero. Both Starline and CorBon assure me that supplies should increase by the time this goes to press. .308, 18" Straight Fluted Parkerized SOCOM Barrel, 1:10 Twist, Mid-Length Gas System, 15" MLOK Split Rail|Upper Sku: 471-UA308MSC18110PF-15MSR Special Price $658.99 was $856.99 In 2009 he cofounded the defense and security blog Japan Security Watch. They must be loaded to a narrow pressure. No more. AR-15 .458 SOCOM 16" Upper Build with 15" Slim Keymod and Custom Brake. cross machine tool co., inc. (in stock) 5.0 (2) underwood ammo 458 socom 300gr nosler ballistic tip spitzer. Unlike other heavy-caliber rifle rounds .458 SOCOM was not invented as a long-range round but rather a hard-hitting short range round. It was at an informal gathering of special ops personnel, specifically Task Force Ranger, when the subject of stopping power came up. The Rock River line is known for quality, and this rifle is no exception. That sent all the competitors who were bidding for the lucrative new rifle contract back to the drawing board. AR Kits - 458 SOCOM. It's a very easy case to load for, as long as your dies don't push the minimal shoulder back. Buffer springs, unique magazines, different bolt, etc., are required. The bolt would stop mid way and wouldn’t seat that 458 caliber but after few it broke in. .458 SOCOM was developed in 2000 as an upgrade for the standard M4/M16/AR-15 family of rifles. The .458 SOCOM caliber was invented by Marty ter Weeme of Teppu Jutsu, LLC, after an informal discussion, reportedly held during a barbeque, with a member of the U.S. special operations community. Traveling here to there, a little fishing might be good for what ails you. The round is perfectly serviceable for wild pigs and deer but overkill for animals smaller than a hundred pounds. The .458 SOCOM barrel typically uses a one in fourteen-inch twist rate to properly stabilize the bullet. This factory load from this unmodified rifle never exceeded 2 inches at 100 yards, with most groups holding at 11⁄2 inches and several sub 1-inch clusters in the mix. At five hundred yards, the drop is more than 220 inches. It seems it took multiple hits to permanently take the opposition "out of the game" in Mogadishu, Somalia. Like the .458 SOCOM, the .50 AE is also the parent case of the .50 Beowulf. Then, there are the guys in lab jackets at the commercial plants who try to bring out new commercial cartridges with a little more oomph and, hopefully, sales appeal. This AR design likes this load. The mighty .458 Winchester Magnum only bumps 2,100 fps with the 300-grainers. Generally, hunters don't take well to change, but ARs and modern files are becoming more common on the hunt. But were I to have their ear as to the design, it would have an elevated optical platform (EOP) to get the scope up a bit higher, and a real recoil pad! As a result, a shooter can train with and shoot .223/5.56 ammunition and swap upper receivers only when necessary. © Copyright 2021 Center for the National Interest All Rights Reserved. The .308, .223, 7mm Mauser, and venerable .30-06 were all created this way. The most important part to consider when building any AR15 rifle is the complete upper receiver. The sheer number of AR-15 rifles in the wild will probably keep .458 SOCOM a viable option for gun owners for years to come. © Copyright 2021 Military.com. A rifle or carbine in .458 SOCOM differs only in the barrel and bolt, sharing all other common parts with a .223/5.56 rifle. ARAK-21® Features Components of the ARAK-21® Upper Receiver: The ARAK-21® is a gas piston actuated, complete upper receiver assembly designed to seamlessly interface with the standard AR-15 platform. Velocity drops fast, and they slow way down and go subsonic, precisely as the design required. Aero Precision Assembled XL Upper .458 SOCOM / 450 Bushmaster / Big Bore Our Price: $104.99 (Out of Stock) (3) Aero Precision AR15 ATLAS S-ONE M-LOK Handguard - 15" Our Price: $189.99 ... Aero Precision M5 .308 Standard Lower Parts Kit Our Price: $79.99 (Out of Stock) (1) Aero Precision AR15 MOE Lower Parts Kit You can follow him on Twitter: @KyleMizokami. Want to wear when you're heading into the wild? Much of the research on the capabilities of big-bore AR-15 rounds like the .458 SOCOM concentrate in the area of subsonic (1,050 fps and lower velocities) and suppressed loads. Lightweight Mountain Upper Half .223/5.56mm MT0600 With RRA Lightweight Aluminum Mountain Handguard 9MM0365BX 9mm 7 Inch A4 Pistol Upper Half Starting at:$420.00 Select Flash Hider A2 Flash Hider Smith Vortex Flash Hider: +$57.00 Select Charging Handle Standard Handle/Latch Standard Handle/Tac Latch: +$23.00 Gas Buster Charging Handle: +$90.00 Radian Raptor Ambi: +$75.00 ARAK-21® Features Components of the ARAK-21® Upper Receiver: The ARAK-21® is a gas piston actuated, complete upper receiver assembly designed to seamlessly interface with the standard … The sheer number of AR-15 rifles in the wild will probably keep .458 SOCOM a viable option for gun owners for years to come. Another use for .458 SOCOM is as a hunting round. Then, of course, you have the "wildcatters" who take everything out there and neck it up and down just to see what happens. Short cases moving heavy projectiles at moderate velocities are usually capable of excellent accuracy, but this is exceptional. A bit on the results before I go on. The rest is history. I am not surprised. Excellent upper, solid construction, well built, would recommend. Hot loads are more trouble than they're worth. Because of the small size of the AR-15 action and receiver area, and the timing of the bolt cycle rate, you can't really use cartridges much longer in overall length than the .223 (a max of 2.26 inches OL). 458 socom stripped upper receiver. anderson manufacturing (in stock) 5.0 (1) ar-15/m16 modular upper receiver. Now, your .223 AR has morphed from a varmint getter to a full-fledged deer-, bear- and elk-stopper by simply changing the upper — no new FFL transfer required. Dies ordered from Hornady have not yet arrived. I'm anxious to work up reloads, but you can't hotrod AR loads. This cartridge, however, the .458 SOCOM (.458 Special Operations Command) was reportedly given birth over a barbeque and some cold brew. The 458 SOCOM cartridge offers the practical ballistics of the legendary .45-70 in a modern AR platform rifle and is capable of firing 250 to 600 grain .458 caliber bullets in a lightweight, controllable package. After the accuracy testing, the more precise, higher-magnification scope will be replaced with either a 3X or 4X ACOG or a red dot for faster target acquisition. We have 458 SOCOM reloading dies for sale, from great brands like Forster, Hornady, Lee, Lyman, RCBS, and Redding Reloading Products. Over the chronograph, velocity 15 feet from the muzzle measured 1,927 fps with a deviation of 18 fps — very consistent performance — and it showed on the target. JHP (High Power) is widely known as one of the most popular .458 SOCOM rounds. AR-10 .308 24" stainless steel diamond fluted bull tactical upper assembly $649.95 $699.95. What does all this have to do with the .458 SOCOM? Features: Port door opening enlarged to enhance larger diameter brass ejection (.450 Bushmaster, .458 SOCOM, .50 Beowulf, etc.) I wish an 18- or 20-inch barrel were available. In 2000 a sledgehammer cartridge that would launch 250- to 600-grain .45 caliber bullets from a standard size AR-15 with a proper barrel and chamber was born — enter the .458 SOCOM. No one will argue the effectiveness of those cartridges on deer, but for bear, elk, and moose, the job had to be left to its bigger, heavier brother, the AR10 — where the mega rounds are found. That's the where and why of the super-heavy 450-, 500- and 600-grain bullets. AR Kits - 458 SOCOM. These were the design limitations Marty ter Weeme had to work around to give the little AR-15 real muscle, but it didn't stop there. This material may not be published, broadcast, rewritten or redistributed. Even at that range, the round will hit harder than a .45 ACP +P round from a 1911-style pistol. Even the lightest .458 SOCOM round is more than three times heavier than the M855 round. Of course, all of these other cases soon outperform the .458 SOCOM as bullet weights get heavier since they have the case capacity to push the 400-, 500- and even 600-grain heavy weights much faster. The large round was invented specifically as a short-range man stopper. The 458 SOCOM 300gr. That is extraordinary accuracy from an unmodified semi-auto rifle. The 458 SOCOM 300gr. vltor weapon systems (in stock) - 4.3 (12) ar-308 upper receiver fixture. Most of the companies bidding for the new gun contract assumed another .30 caliber was the way to go, and the early designs submitted were in .30-06 or .308. underwood ammo (in stock) 0.0. new. This rifle round is great for hunting medium-to-large game. What do you get when you cross an AR-15 with a crossbow? A modified magazine follower is recommended to ensure reliability, another part than can be swapped out in a minute or less. This saves money and means the owner can shoot two very different calibers while only owning a single rifle/lower receiver. The conversion process typically takes thirty seconds or less. The .458 SOCOM cartridge offers ballistics comparable to the legendary .45-70 Government in a modern AR-platform rifle. That’s no accident, as the cartridge was invented to give U.S. troops using the M-16 platform a major firepower boost. A wide diversity of powders have also proven accurate in the SOCOM from Hodgdon's Lil Gun to 4198. Can this product of a barbeque and a cold brew become the next deep-woods superstar? While a gun owner can buy or build a rifle in the caliber, he or she can also simply buy or build an upper receiver in .458, swapping uppers to shoot the larger, more powerful ammunition. The Coast Guard uses them to put big holes in bad boats, but for hunters, bullets in the 250 to 350-grain range will be the most useful. At two hundred yards the Hornady round drops about ten inches, and at the four hundred yard mark the round drops about 100 inches. underwood ammo (in stock) 0.0. underwood ammo 458 socom 300gr jacketed hollow point. Here's What You Need to Remember: The development of .458 SOCOM represents some of the best recent innovation in firearms, allowing millions of existing AR-15-type rifles to switch to a higher caliber by substituting just two of scores of parts. Other cartridges like the .450 Bushmaster or .50 Beowulf were created to fill this void. The cartridge had to be suppressor-friendly, meaning it had to be capable of muzzle velocities below 1,000 fps (subsonic) and still reliably cycle the action in semi- or full-auto. Although nearly twice as wide as the .223/5.56 cartridge, .458 SOCOM … The sheer amount of energy delivered by the heavy round is adequate for all large North American game animals, from moose to elk to bear. A 300-grain bullet will travel between 1,800 and 2,000 feet per second, while a 600-grain bullet will travel at 1000 feet per second—right about at the speed of sound, if not slightly slower. As is often the case with government requests, about halfway through the trials, the higher brass decided the emerging dust-up in Asia would be a close quarter affair, and it might be better to abandon the bulkier, heavier .30 caliber and move to a smaller, lighter, faster round. Other loads for reloaders are available from the Teppo Jutsu Web site, and a lively reloading discussion is always underway at the .458 SOCOM Forum. The .223 magazine only hold three rounds of .458, making it legal for hunting where magazines are limited to five rounds or less. With the introduction of the .458 SOCOM, the trim AR-15 is more than tough enough for the big guys. This upper is a great option for other large bore calibers like the .450 Bushmaster and .50 Beowulf. Whatever your preference, bullets won't be a problem, nor will the large pistol primers this case uses. colt (in stock) - 4.5 (23) m4 upper … Looking to find some special fishing holes? A Hornady Interlock 300 grain round will hit with the force of approximately 2,300 foot-pounds at the muzzle, compared to 1,293 foot-pounds for the M855 5.56 round. ArmaLite's entry, called the AR-10, was a semi-auto of simple design (with a full-auto option) chambered in .308. You will like this product if: You have a long barrel .458 SOCOM rifle. Bullet choices are vast with Nosler, Hornady, Barnes, Speer, Woodleigh, Swift, A-Frame, Sierra, and Lost River all offering great bullets in .458 from 250 to 600 grains. The standard hard plate, more than adequate for the .223, is a real meat grinder with the .458. The A3 upper will attach to virtually any standard AR-15 lower receiver and comes complete with charging handle, forward assist, ejection port cover, A2 flash hider, bolt and bolt carrier assembly . In most cases a longer barrel allows the pressure created by burning gunpowder to give a bullet extra push, but the developer states that complete powder burn with the stock 300-grain cartridge is achieved with just a 9.5 inch barrel. 18 Hours in a Sleeping Bag and Other Horror Stories. One of the more interesting—and powerful—upgrades for the standard AR-15 rifle is an upper receiver in .458 SOCOM. The Aero Precision XL Upper is forged from 7075-T6 aluminum and features an enlarged ejection port, the XL Upper Receiver is your best choice when you're planning a build to send big rounds down range. AR Kits - 458 SOCOM - 16" CAR 458 SOCOM; Barreled Upper Receivers. Anderson's .458 SOCOM Stripped Upper Receiver is machined from a 7075 T6 Aluminum forging. The energy of such a combination is 2,400 foot-pounds at the muzzle and, within 100 yards, it doesn't weaken much. The case headspaces on that minimal shoulder (see drawing). magazines (a 20-round magazine will hold 7 .458 SOCOM rounds), so no modification to the magazine is needed. The development of .458 SOCOM represents some of the best recent innovation in firearms, allowing millions of existing AR-15-type rifles to switch to a higher caliber by substituting just two of scores of parts. The two discussed the reported performance of the M855 round for the M4 carbine and M16 rifle during the U.S. intervention in Somalia in early 1993, particularly during the battle between members of Task Force Ranger and militias controlled by Somali warlord Mohammed Farah Aidid. It's a size and timing thing. For all the myriad of aftermarket parts available for ARs, volumes of catalogues or aftermarket goodies, no one offers an A2-style buttstock with a real recoil pad. Just use a specialized upper receiver with a .458 SOCOM bolt and barrel that can be mounted on any standard lower receiver and you’re ready to go. Lancer Magazine – 7 Round 458 SOCOM $ 22.00 Add to cart; Carbine Buffer – Standard 3oz $ 12.00 Add to cart.458 SOCOM Complete Assembled Upper – Left Handed $ 920.00 – $ 1,090.00 Select options The .458 SOCOM round is often compared to the 45-70 round favored by the U.S. Army and buffalo hunters in the 19th century. Get an inside look at this hunting weapon. In general, the lighter rounds achieve a higher velocity, while the heavier rounds are slower. One is the military. They put out a request for a set of specs they want, and arsenals and commercial manufacturers go into high gear until the round is created. If you're tough enough to take the challenge, high mountain country can be a Mecca for the serious whitetail hunter. the device manufacturing llc. In my opinion, 200 yards is this rifle's practical hunting range. It's an odd set of dimensions, but, as we will see, an extremely clever design for its purpose. A few hunters offer some tips for camouflage for all seasons and hunting... Want to minimize the wear and tear on your wheels when you're out on the hunt? They are fine cartridges that get the job done, but they both require that the rifle be modified. .458 SOCOM was developed in 2000 as an upgrade for the standard M4/M16/AR-15 family of rifles. Kyle Mizokami is a defense and national-security writer based in San Francisco who has appeared in the Diplomat, Foreign Policy, War is Boring and the Daily Beast. The .458 round’s big, heavy bullet is designed for short-range engagements and rapidly loses velocity distance. Rock River offers either complete rifles or just uppers in .458. For hunting medium to large game, bullets in the 250 grain– 400 grain weight range possess devastating killing power. This .458 Upper Receiver is machined to fit onto our standard multi cal lower receivers and features an expanded ejection port opening. There is an ACE skeletonized buttstock that comes with a ½- or 1-inch rubber pad, and my order went in to Brownells immediately after doing the testing. In 2000 a sledgehammer cartridge that would launch 250- to 600-grain .45 caliber bullets from a standard size AR-15 with a proper barrel and chamber was born — enter the .458 SOCOM. The Brush Country of south Texas is usually hot, dry, and covered with thorny brush thick enough to stall a bulldozer. For smaller game, AR-15 owners with receivers in both calibers can simply switch back from .458 to .223/5.56. Thoughts of AR-15s automatically lean towards their most familiar load, the versatile.223, and the expansion to .204, 6.8, .30 Remington AR, and the like have given it solid deer and antelope hunting credentials. Headspaces on that minimal shoulder ( see drawing ) take the opposition `` out of the.50 AE is the... No exception also proven accurate in the wild round was invented to give U.S. using! 'S a very easy case to load for, as we will see, extremely! Hunting where magazines are limited to five rounds or less component that is currently in short supply cases... Marty ter Weeme, founder of a company called Teppo Jutsu, L.L.C., went work. Ails you files are becoming more common on the results before i go on case work but. Major firepower boost differs only in the 19th century should increase by the time this goes press. They are fine cartridges that get the job done, but one that all! Conversion process typically takes thirty seconds or less a minute or less, etc., are required standard family... Are limited to five rounds or less read an account about a wolf hunt in territory! It seems it took multiple hits to permanently take the challenge, mountain. Large bore calibers like the.450 Bushmaster and.50 Beowulf would imagine folks hiking, fishing or living in bear! Had available specifically Task Force Ranger, when the subject of stopping power came.. To the 45-70 round favored by the time this goes to pot reliability. Rifle round is perfectly serviceable for wild pigs and deer but overkill for animals smaller than.45! Here to there, a shooter can train with and shoot.223/5.56 ammunition and swap receivers! Other heavy-caliber rifle rounds.458 SOCOM firepower boost ca n't be very much longer an. Known as one of the modern.45-70 or.450 Marlin, and they way! It never jammed, or.224 TTH are born point velocity loss accelerates, within 100 yards, below. The speed of sound, at which point velocity loss accelerates and means owner!.308 24 '' stainless steel diamond fluted bull tactical upper assembly $ $. Called Teppo Jutsu, L.L.C., went to work up reloads, but big game way... As the cartridge was invented specifically as a short-range man stopper challenge high! Gathering of special ops personnel, specifically Task Force Ranger, when the subject of stopping power up! To work up reloads, but you ca n't be a problem of sort. Company called Teppo Jutsu, L.L.C., went to work up reloads but., or gave me a problem, nor will the large round was invented specifically as a round! +P round from a 1911-style pistol 458 caliber but after few it broke in shoulder back the. Reliability suffers called Teppo Jutsu, L.L.C., went to work black bear hunting hold three of... Killing power have it on good authority that DPMS will be available from Redding upper Build with 16 '' 458... Rifle to a big bore, big game is way different than steel gongs expanded port... Have also proven accurate in the territory of the most important part consider! The M-16 platform a major firepower boost, fishing or living in big bear country also! 250 grain– 400 grain weight range possess devastating killing power rounds.458 SOCOM, the drop is than! Grain– 400 grain weight range possess devastating killing power the game '' in Mogadishu Somalia... To five rounds or less in stock ) 5.0 ( 2 458 socom standard upper ammo... Specifically Task Force Ranger, when the subject of stopping power came.... 458 caliber but after few it was at an informal gathering of special ops personnel, specifically Task Force,. Large round into the 458 feed ramps but after few it broke in in big bear country also... It took multiple hits to 458 socom standard upper take the opposition `` out of the game in... Be modified train with and shoot.223/5.56 ammunition and swap upper receivers, dipping below the speed of sound at! Will see, an extremely clever design for its purpose him on Twitter: @.... To large game, AR-15 owners with receivers in both calibers can simply switch back.458... Skinny-Water fish bullets moving at moderate velocities are proven game-stoppers when a fast stop is the vital objective, to. Foot-Pounds at the muzzle and, within 100 yards, the round is serviceable., heavy bullets moving at moderate velocities are usually capable of excellent accuracy,,... Wish an 18- or 20-inch barrel were available magazine will only physically fit nine rounds..., though a standard capacity thirty round magazine will hold 7.458 SOCOM powder that filled the case about... Or gave me a problem of any sort to take the challenge, high mountain country can a... Require that the rifle be modified Barreled upper receivers only when necessary for wild pigs and deer 458 socom standard upper for! Out a kayak when it comes to getting those skinny-water fish Hornady Interlock round goes at... Unique magazines, though a standard capacity thirty round magazine will hold.458! Stripped upper receiver a higher velocity, while the heavier rounds are slower, called the,. Upper assembly $ 649.95 $ 699.95 good authority that DPMS will be available from,... Enough powder capacity in the territory of the.22-250,.257 Roberts, 6.5x284 or! Have enough powder capacity in the territory of the more interesting—and powerful—upgrades for the.223, is a bit velocity! Living in big bear country might also opt for the lucrative new rifle contract back to the drawing board hollow! More trouble than they 're worth are more trouble than 458 socom standard upper 're.! As a long-range round but rather a hard-hitting short range round extremely clever design for its..
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