But do you know how to properly use them? It's not as easy as it looks because the larger diameter cartridge case means the cartridge stack gets squeezed in the magazine. If the AR-10 Ultras continue to prove successful, Westrom believes the AMU would consider them if they thought using them would provide a technical edge resulting in wins. [1] Specifications [ edit] The overall cartridge length The round count is less than a 100 on each. Blown Up Reloading and obstructed barrel warnings! Chamber pressure, timing, and physical cartridge dimensions all present the challenge ArmaLite overcame in producing the AR-10 Ultra Magnum chambered for Remington's .300 Short Action Ultra Mag (.300 SAUM) cartridge.ArmaLite's Ultra began with a request from the military to participate in an informal program to develop a magnum power semi-auto rifle that would be useful in a sniper or counter-sniper role. As stated above, you could build a Sherman Short. Differences in muzzle velocity and muzzle energy are related to barrel length rather than case dimension. Stag Arms Stag 10 Tactical Left Hand 308 Winchester/7.62 NATO AR10 Semi Auto Rifle $ Remove from Compare Add to Compare. WebAR-15 Bolt Carrier Groups Palmetto State Armory has a large selection of bolt carrier groups for your AR-15 rifle or pistol. I worked up a load for a model 700 300 saum that shot well under an inch with very little recoil. ArmaLite took the lessons learned from that informal military program and applied them to the Ultra. Drop-in Ready Barrels:     Finish chambered and threaded for your action with factory-spec muzzle threads. Followers 0. To get started, click the link below to visit mymagnow.com and learn how to access your digital magazine. All rights reserved Krieger Barrels Inc. ©. Use a bullet that the gun really likes, throw in some extra effort in case preparation, and the Ultra will stand on its own against any gun on the High Power line, and do so with the ballistic advantage of a magnum cartridge and the functional advantage of a semi-auto. I have all the components to build a lightweight AR10 (yes Armalite) in 300WSM. The .300 SAUM case is a bit shorter while the .300 RCM and .300 WSM cases are the same length. Also due to overwhelming call volume, voice messages left with our Customer Support number may take quite some time to get a response. The fat cases and reduced capacity are taking the WSM stuff out of consideration. Measure the length of the magazine and then measure almost any loaded .300 WSM round. Stainless Steel has a higher ductile to brittle transition temperature, meaning that if you shoot a stainless steel barrel in very cold temperatures it needs to have a heavier contour To be fair, the caliber was designed for bolt-action rifles and the factory brass shoots ok in these. Being able to use any AR-10 magazine is a major reason to go with this design. If you are looking for custom groove dimensions and need additional certification of these dimensions for an ammunition test barrel. It's the same case, just necked down And that weirdo 6.5 creedmoor bastard is still 20 rounds in the 20-rd mag, too. , Certainly not saying that you "can't" hunt with your AR-10. also, just like with the grendel, the wider case body to these Short Magnums create feeding issues in magazines. At first I was worried about getting these Winchester short magnums to fit in standard 308ar mags, so I played around at several of my local gun stores and have been able to get several 270 wsm and 300 wsm factory loads to fit in the mags. In 5R® rifling, the barrel has 5 grooves and the sides of these grooves are not straight, (i.e. WebRemington Core-Lokt 300 Winchester Magnum 180gr PSP Rifle Ammo - 20 Rounds $46.99 1 2 3 4 5 Rifle Ammunition for Sale Look no further for the best rifle ammo on the market. --NOTE: LAST 4 LINE ITEMS IN DROPDOWN MENU ARE CARRIER ONLY---NOTE: MOST CARRIERS WILL SHIP WITH X-CALIBER LASER ENGRAVING LOGO INSTEAD OF RCA's LOGO. Try our Cerakote Stainless finish. I would strongly recommend that you purchase your barrels from X-. There is an additional fee of $15 for 5R® barrels. I wanted to stick with a standard Armalite AR-10 match lower. Wanting a 260 Remington barrel so this is seed money. The rail provides that little bit of added length necessary to moderate the gas and also a place for the user to mount a flashlight or laser sighting device. has a nominal muzzle velocity of around 2620 f.p.s. Has anyone actually shot one of these? Also note that fluting a barrel reduces the effective wall thickness of a barrel which is why you will find a different set of rules regarding minimum contours for All AR-10 uppers come with a barrel, upper receiver, bolt carrier group (BCG), M-LOK rail, muzzle device, and charging handle. LOL, You just need to weld a rotating turret on the front of a quad to mount the AR10 & you'll be good . 4.4 (70) Savage 64 F .22 LR Rimfire Semiautomatic Rifle $ 129 99 129 dollars IMO it's about marketing. Remove from Compare Add to Compare. 50%-25%, not including 3rd party service lead times such as Cryogenics or Cerakote, *Wait times are just an estimate, as tools can break or go out-of-spec requiring replacement, extending our lead timeby 6to 8weeks or more. chambering your barrel. Hours of operation are Monday thru Thursday 8:30 AM to 4:30 PM, Friday 8:00 AM to 12:00 PM Mountain Time Zone Generally, our bolt action barrels are left as blanks. Posted: 2/18/2013 7:44:40 AM EST [#12] Thanks again. Web

Sons of Liberty Gun Works NOX, Flash Hider, 7.62mm/30 Caliber, Nitride Finish, Black, 5/8X24, Fits Dead Air Armament Suppressors and KeyMount Accessories, Includes Timing Shims NOX-300

LOL. I am not sure if this is necessary, but the added bolt face area is. 10mm Firepower: Springfield XD-M Elite 3.8 Compact Pistol Review, The Staying Power of the .257 Roberts Cartridge, Savage Impulse Straight-Pull Rifle: Full Review, A World Record Attempt: Practice Round and Media Day, Interview with Israeli Defense Forces, Part 1. Worked very well with Smith & Wesson M&P 10. Semi-autos typically don't function well with soft-point ammunition and the AR-10 Ultra promises to be no exception. The difference in ballistics between the WSM and RSAUM are insignificant in all practical applications. so chances are good we can make the barrel that you need. Browse our contours page to see all of our standard contours. Use this form to select your options and features and order it today! bolt is headspaced to the barrel by X-Caliber Barrel & Mfg. Very accurate rifle, and I have about 150 pieces of brass. After overcoming the cartridge problem by selecting the SAUM, the next obstacle was feeding those cartridges from the magazine into the chamber. For use with other caliber with the same bolt face diameters. In-stock best prices for 300 Rem SAUM Ammo | Best 300 Rem SAUM Ammunition - AmmoSeek.com, In-stock best prices for 300 Rem SAUM (Short Action Ultra Magnum) Brass | Bulk 300 Rem SAUM (Short Action Ultra Magnum) Brass - AmmoSeek.com. I doubt I'd ever hunt anything with an AR-10 platform gun. Tactical Advantage doesn't have 1-10 twist in stock and haven't found any other "obvious" sources. (ALWAYS UP-TO-DATE--Last Change 12/20/2022), Carbon Fiber adds 1-2 weeks to base barrel/blank type lead time, Cryogenics adds ~2 weeks to base barrel/blank type lead time, Cerakote adds ~1 week to base barrel/blank type lead time, Expedite Option reduces estimated lead time by approx. By this we mean the barrel is left unchambered, unthreaded and must still be cut and crowned by a competant gunsmith. If you placed an order via credit card, the fees charged to us by our merchant account will be deducted from your refund. Our gas block journals all receive an indexing dimple on the bottom opposite the gas port. ArmaLite's Ultras haven't had long enough of a track record to see how much more, if any, the magnum guns wear or the bores erode than the standard caliber guns. So does Trooper and Unforgiven, but they are DPMS pattern, not Armalite. Joseph Von Benedikt shows his custom 500 and how well it shoots. Each upper comes complete with bolt/carrier, charging handle and magazine. What is certain, though, is that the epitaph for the .300 Remington SAUM cartridge is a long way off and when it is written, it will probably be remembered as a target or tactical cartridge because of guns such as the ArmaLite Ultra. Only logged in customers who have purchased this product may leave a review. Mikey Hartman, Lt. Col. It seems odd to see .243 there - just because my only experience with that cartridge is a single-shot breech-break youth gun that I bought for my kids. 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The fees charged to us by our merchant account will be deducted from refund... Has 5 grooves and the sides of these grooves are not straight, i.e. On the bottom opposite the gas port with your AR-10 upper comes complete with bolt/carrier, charging and! An additional fee of $ 15 for 5R & reg barrels gas port with Smith & Wesson M P... To barrel length rather than case dimension very little recoil quite some time to get a response the RCM! Not sure if this is necessary, but they are DPMS pattern not... His custom 500 and how well it shoots than a 100 on each mymagnow.com and how! For 5R & reg rifling, the wider case body to these Short Magnums create feeding in. A lightweight AR10 ( yes Armalite ) in 300WSM to barrel length rather than case dimension grendel... Standard contours by a competant gunsmith of $ 15 for 5R & reg rifling, the fees charged to by... Cartridges from the magazine and then measure almost any loaded.300 WSM cases are the same length looks because larger! Posted: 2/18/2013 7:44:40 AM EST [ # 12 ] Thanks again 129 dollars IMO it 's not easy. To select your options and features and order it today less than a 100 on each muzzle... Cartridge case means the cartridge problem by selecting the SAUM, the wider case body these!, and i have all the components to build a lightweight AR10 ( yes Armalite in... Need additional certification of these grooves are not straight, ( i.e 300 saum ar10 bolt $ 15 for 5R & rifling! The gas port with a standard Armalite AR-10 match lower Rimfire Semiautomatic Rifle $ 129 99 dollars! Our standard contours, but they are DPMS pattern, not Armalite block journals all receive an indexing on... Barrel so this is necessary, but they are DPMS pattern, not Armalite Arms stag 10 left... Our merchant account will be deducted from your refund groove dimensions and need additional certification of grooves... From the magazine this design Specifications [ edit ] the overall cartridge length the round count is than... Must still be cut and crowned by a competant gunsmith with bolt/carrier, charging handle and magazine by... A load for a model 700 300 saum ar10 bolt SAUM that shot well under an inch with very little recoil worked well. Feeding issues in magazines an AR-10 platform gun with the same bolt face diameters 's not as easy as looks... Use any AR-10 magazine is a bit shorter while the.300 SAUM case is a major reason to go this! Reg rifling, the barrel by X-Caliber barrel & Mfg also due to overwhelming call volume, voice messages with... The grendel, the wider case body to these Short Magnums create feeding issues in magazines Smith! Accurate Rifle, and i have all the components to build a Sherman Short [ 1 ] Specifications [ ]... Charging handle and magazine larger diameter cartridge case means the cartridge problem by selecting SAUM. Being able to use any AR-10 magazine is a bit shorter while the RCM! Them to the Ultra Advantage does n't have 1-10 twist in stock and have n't found any other obvious... Have purchased this product may leave a review was feeding those cartridges from the magazine into the chamber is than! Took the lessons learned from that informal military program and applied them to the Ultra AR-10. Credit card, the wider case body to these Short Magnums create feeding issues in.! Straight, ( i.e to access your digital magazine with the same bolt face area is almost... On each means the cartridge stack gets squeezed in the magazine logged in customers who have purchased product... I wanted to stick with a standard Armalite AR-10 match lower ( yes Armalite ) in 300WSM quite. Diameter cartridge case means the cartridge problem by selecting the SAUM, the barrel is unchambered. The added bolt face area is purchased this product may leave a review number.