I recently decided to buy a Sinclair Expander Mandrel die and test it out compared to the standard dies I've been using. Your email address will not be published. For example -0.0025 of Bullet Tension (BT) on these KM expanders means to achieve a bullet grip on neck tension of 0.0025 and after using that expander, the brass should normally spring back to leave the internal neck size of around 0.2815. Cookies help us deliver our services. Required fields are marked *. We will update on this banner and newsletters and Facebook. Dies already include the 5/16 Collet needed to use the Expander Mandrels. (neck tension). Brownells is your source for Turning & Expander Mandrels,Neck Turning at Brownells parts and accessories. EXPANDER MANDRELS ARE ONLY COMPATIBLE WITH SHORT ACTION CUSTOMS MODULAR SIZING DIES. Expanding is more consistent because the brass starts off perfectly centered in the die and is immediately expanded as the brass is drawn out of the die body. 2). Caliber Specific Expander Mandrel Kits - 21st Century Innovation The K+M mandrels and gage pins I receive are of high precision, each mandrel and pin miced to the exact dimensions printed on the sides. Current lead time is 8 weeks. window.mc4wp = window.mc4wp || { The gage pin block will be etched with the caliber and each gage pin location will be noted with the bullet tension and the diameter of the gage pin. A bit less for the calibres of 6mm and smaller. Established in 1942. We go the extra mile to ensure that our mandrels are in sync with your operation and meet your company's needs. Sinclair's Generation II Expander Die Body (item 05-3000, shown above) completely captures the mandrel within the die so the mandrel cannot pull out. Love supporting an American small business and especially with such nice and patient customer service. Share your e-mail with us to receive regular sales, offers, and promotions. This is an updated "Gen II" design that completely captures the mandrel within the die so the mandrel cannot pull out. The benefit is that as the cartridge is pulled out of the die, the cartridge neck transitions from the neck bushing to the expander mandrel right away. Save my name, email, and website in this browser for the next time I comment. This correct fit makes the turning process more precise and much easier. This also means, if using a neck bushing style die you should use a smaller bush than the regular size recommendation. Please leave your valid email address below. Spot on products. To check which bullets are available click HERE. Now subtract the 0.002 or 0.003 from the final size, 0.280-0.003=0.277. Your email address will not be published. All our products are made in the United States. KM Custom Undersized Expander Mandrels for 7mm event : evt, In addition to good products they have great customer service. rweeks7mm carbide is very dense and highly polished so it has the highest amount of surface contact and can apply more force than the shoulder can stand in some cases. FEENIX Well-Known Member. After expanding use the corresponding gage pin to confirm the neck sized as expected. Be the first to review this product. Just like your area of business, each process is unique. Scott Posey Expand Mandrels for Bullet/Neck Tension Builder - K+M Precision })(); Short Action Customs, LLC. I full length re-size after each shoot and have used both Hornady and CH4D dies with included expander balls. Our team of mandrel experts will work closely with your mill builder to design and manufacture the best mandrels for your new system. forms: { document.getElementById("copyright_year").innerHTML = new Date().getFullYear(); Our Neck Expanding Mandrels are designed to fit both the 21st Century Shooting and Sinclair Expander Dies. } 10% off all products for online orders (U.S.A. Orders Only). I have read and agree to the terms & conditions. 21st Century Innovation: Bruno Shooters Supply Expand Mandrels for Bullet Tension Builder. I shoot 50 cal competition and was running into variable bullet tension problems, in large part due to inconsistent annealing, which I am working on. When using an expand mandrel to achieve final neck sizing bullet tension we find it best to size your neck 0.002 to 0.003 below your desired final bullet tension size. I use them to expand the neck on new brass and any brass I don't have the decapping/expander rod in when I size the brass. Expanding Mandrel Die Your Price: $80.00 * Price Includes Only Mandrel - Additional mandrels sold separately. Order up to 9 on the Bullet Tension Kit page. NOTE: If you do not currently have a 7mm ER11 Collet installed in your die, you will need to purchase one! Are you buying a new slitting, pickling, cold rolling, or another processing line? Price reflected in cart. There are no Exchanges or Refunds on this item as manufacturer deems these non exchangeable. Category suggestion. Paul Anderson We will will be releasing for sale more of the Berger bullets next week. .50 cal tapered custom expand mandrels and gage pins This is why they are marked and identified this way. Expand Mandrel for Bullet Tension - K+M Precision Shooting Products Our neck turning tool mandrels measure approximately about .002'' less than the bullet diameter for the caliber. So if you are aware of this too and want to know what the actual measured sizing of these expanders is, I have listed that a chart below for you. The undersize mandrel will lets say expand your already FL resized brass that has been sized with a bushing die back to a diameter that will allow your bullet to easily start into your case mouth. Rest assured, you will still benefit from our vast product selection and industry-leading customer service. Particularly when you are. The item you are trying to purchase is currently out of stock.Please enter your name, email, and phone number below. Suggestion The feel you are looking for is a light drag on the gage pin. Description Expand Mandrels for Bullet Tension: Tool Notes: Download Tool Instructions After selecting the caliber, select each bullet tension expand mandrel desired for your kit. Particularly when you are not doing outside neck turning of brass which uniforms wall thickness. Expanding Mandrels Only-EXPM- - L.E. Wilson This is ideal, where expanding on the up stroke puts all the stress and pressure on an unsupported case/neck. Dip the neck in dry lube and make sure there is no crap in your shell holder. With correct neck tension you can expect a more consistent seating depth and shot. $21.50 (out of stock) K&M Neck Expander | Shooters' Forum Expander Mandrel (.223"), Decrease Quantity of 24cal. Click on Select Option arrow. FOREVER. 136.99. I removed the ball expander from my CH4D FL die to size all of the brass. Remember how important the right mandrel reel is to the performance of your process. Our company has advanced processing technology, strong technical and equipment strength, with the rolling mill industry open, close reel and mandrels as the main product. - custom hole fit per caliber (.30 cal shown). All of our expand mandrels are ground to account for spring-back of brass which is assumed at the nominal anneal. Like a hot knife through butter. Expander Mandrel Size All rights reserved. Designed and manufactured with alloy forgings, our one-piece shaft technology, developed by our technical team, effectively increases service life and precision of workmanship! NOTE: If you do not currently have a 5/17ER11 Collet installed in your die, you will need to purchase one! ); Each selection allows for selecting an etched press adapter and the corresponding gage pin for that neck tension. Custom EZ X Expander, for the full length sizing die. window.mc4wp.listeners.push( By stepping up or down on the expand mandrel bullet tension size you can achieve the desired neck tension to your pin gage. Furthermore, the precision ground expanding detail is high up in the die, slightly below the cartridges neck / shoulder detail. Already possessed the neck turner 223 mandrel which I bought before I knew what I was doing then discovered I needed the neck tension mandrels. So you want to make 30BR brass quick? Custom Expander Mandrel, Uncoiler Mandrel Joint - YUBEI - Mandrelmachining Select any or all items; 9 mandrels will fill a case. I will continue to use their version of the tools I use to help me shoot accurately. Each selection allows for selecting an etched press adapter and the corresponding gage pin for that neck tension. Custom Undersized Mandrel, please specify how many thousandths you would like it undersized in the box below. Expanding Mandrel (.276"), Increase Quantity of 27cal. .715 & .895) AR15 / AR10; . Expander mandrel | Page 3 | Long Range Hunting Forum Now subtract the 0.002 or 0.003 from the final size, 0.280-0.003=0.277. Expanding Mandrel (.203"), Decrease Quantity of 22cal. { from 6mm Neck Up Mandrel (.307"), Increase Quantity of 30cal. Expander mandrel | Long Range Hunting Forum Expander Mandrel 6mm (.242"), Decrease Quantity of 26cal. This is why owning a couple of these expanders may be needed to establish a result which you want. New brass cases are often damaged when shipped in bulk, this die will give you a consistent neck diameter on your cases. I use the expander mandrel along with the turning mandrel to get the best fit while turning the necks. Proudly powered by WordPress | { Our Expander Mandrel is unique because it expands the neck of your brass on the "down stroke" instead of the "up stroke" of your press. Shop our vast selection and save! Carbide is also better at resisting galling which can leave behind material and scratch the inside of your necks. Gonna be the coolest in the school pick up line! Using an expander mandrel prior to neck turning sizes the case to fit the neck turning mandrels perfectly. I have loaded many wildcat calibers over the years starting years ago with the TC/U wildcats of Ugalde and others. The spring-back works in the opposite direction from that of a bushing die approach, so the mandrel will generally give you somewhere around .0005" more neck tension than than simply subtracting the mandrel's diameter from the caliber. WILSON INC.. All Rights Reserved. } Both the expand mandrel and the press adapter are laser-etched with the caliber and the bullet tension for easy identification. It is important to remember these are made and marked to take into account brass springback. James Andrew Custom Tailoring Shop - Yelp Expander Mandrels - 7mm Cartridges - Short Action Customs, LLC. (verified owner) 06/17/2022. PMA Tool. 2023. LRH Supporter . All of our expand mandrels are ground to account for spring-back of brass which is assumed at the nominal anneal. These are special ground expander mandrels to be used for obtaining more precise bullet seating tension. 04/24/2022 . Berger shipment. The difference in force was an eye opener. A .3060" mandrel will give you ~.0025" neck tension (interference fit). majohnson Gold $$ Contributor Dec 21, 2016 #4 That an interesting idea on using the gaige pins. Delivery date may change with additions to cart. Now the annual output has reached more than 150 sets, and it is one of the enterprises that process more winding shafts in this industry in China, and the quality all reach the industry standard. These representatives will help ease the extensive licensing and shipping complications associated with purchasing products from our U.S. website. We have found this is the easiest method to greatly reduce your extreme spread (ES) and standard . For decades, Vip Rubber and Plastic Company has been refining the art of custom manufacturing. Expanding Mandrel (.171"), Decrease Quantity of 20cal. } You can actually feel the air compress inside the case. Cut out in die provides an easy view for making sure case aligns and setting up depth Interchangeable Mandrels depending on caliber Stainless Parts for a Long Lasting Finish - Made in the U.S.A. Our Expander Mandrel is unique because it expands the neck of your brass on the down stroke instead of the up stroke of your press. Sinclair Expander Mandrel Die Test | Long Range Hunting Forum } Any of the mandrels can be used to ''neck'' cases up to the next caliber when used with the NT-EXP (Expander Body). I then used my RCBS Ammomaster for 50 BMG with the mandrel mounted in my adapter. No.7 Workshop, Zone C of Tiantan Pioneer Park, Huling Industrial Agglomeration Area, Jiyuan City, Henan Province P.R . NOTE: IF YOU ARE NOT CURRENTLY USING A SAC EXPANDER MANDREL IN YOUR MODULAR SIZING DIE, YOU WILL NEED TO PURCHASE A COMPATIBLE ER11 COLLET. Sign Up for Our Mailing List! L.E. STAINLESS STEEL EXPANDER MANDRELS - Brownells callback: cb This $24.95 unit fits caliber-specific expander mandrels ($8.95) which measure approximately .001 less than bullet diameter for each caliber. The benefit is that as the cartridge is pulled out of the die, the cartridge neck transitions from the neck bushing to the expander mandrel right away. Our Neck Expanding Mandrels are designed to fit both the 21st Century Shooting and Sinclair Expander Dies. The APW Expander Mandrel will smooth out and slightly expand the case neck so the brass will be ready for consistant neck tention. For custom expand mandrels please e-mail to order. SKU:90594 Cartridge * How many thousandths (.xxx) undersized? These tool are especially helpful for those reloaders who choose not to outside neck turn their brass to uniform wall thickness. Theme: Alpha Store by Themes4WP. Jan 22, 2020. Hey Greg, thanks for the kind words and thorough review! Not Available Dealers are dealers Brownells cannot ship guns to at this time. I had used a Wilson expander mandrel for 6.5 CM and recently acquired a 21st Century expander in black nitride. The large-cal window riser is through the first prototype and now working on design updates for rev 2. Expander Mandrels Not Just for Neck-Turning Daily Bulletin All of our expand mandrels are ground to account for spring-back of brass which is assumed at the nominal anneal. I am very pleased with the finished product which allows full trimming in my Redding Form/Trim die or my 300B.O. Your friend will receive an email from you with a link to our site. Copyright 2023 Lee Precision, Inc.. All rights reserved. The gage pin block will be etched with the caliber and each gage pin location will be noted with the bullet tension and the diameter of the gage pin. After selecting the caliber, select each bullet tension expand mandrel desired for your kit. It's Monday 9:46 PM Sorry, we're CLOSED. 2023. In limited numbers at a time and probably commencing with 25cal and 6.5cal. Every product I have purchased has been of the highest quality. } However, the neck inside diameter needs to be slightly smaller so the expand mandrel can properly size the brass. Have we got the mandrel for you. (verified owner) 03/08/2021. I have worked on improving the annealing process, and with the expand mandrels, I was able to achieve a neck ID of .508 (the necks would not pass the .5085 pin) in 145 cases out of 157 that were annealed. Expander Mandrel (.307"), Increase Quantity of 30cal. This $24.95 unit fits caliber-specific expander mandrels (item E-XX, $8.75) which measure . Stainless Parts for a Long Lasting Finish. Expander Mandrel (.307"), Decrease Quantity of 30cal. callback: cb +86-0391-219-7289 +86-155-1470-8691 Both the expand mandrel and the press adapter are laser-etched with the caliber and the bullet tension for easy identification. A while back, while forming some 30BR brass for a customer's rifle we noticed that after necking 6mm up to 30cal the neck fit on the turning mandrel was a lot tighter than we Necking 220 Russian up to 6mm for forming 6PPC is a pretty easy task, but we've noticed that neck turning mandrel fit can sometimes leave something to be desired. Mon - Fri: 7:00 a.m. - 3:00 p.m. EST We carry high-quality products and back them with the industry's strongest guarantee. Ensures a seamless transfer of the cartridge neck from the Neck Sizing Bushing to the Expander Mandrel. All of our Expander Mandrels are rough turned, next they are precision OD Ground for the full length ensuring that all of the outside detail is concentric and ground in the same operation. (verified owner) 12/09/2022. How much more? window.mc4wp.listeners.push( I will simple rework the dozen cases that were over-sized. Wilson manufactured lock nut - thickness is .225" from inside to outermost edge .270" for height and 1.250" total width OD. Your email address will not be published. Now based on your neck wall thickness select the appropriate bushing that will achieve the 0.277 inside neck diameter. Each selection allows for selecting an etched press adapter and the corresponding gage pin for that neck tension. Manufacturers Of American Made Rubber & Plastic | Vip Rubber Co the company invested more than 4 million RMB to update equipment at the end of 2016, newly purchased one 5m CNC gantry milling machine, two 3m CNC gantry milling machines, one 10m 1250 lathe, etc.. Expander Mandrels - 30 Cal. Cartridges - Short Action Customs Exacting precision is what you get with these folks. Furthermore, the precision ground expanding detail is high up in the die, slightly below the cartridges neck / shoulder detail. How to Build An AR-15: Your AR Build Made Easy, California Residents: Do Not Share My Personal Information. Stainless Expanding and Neck-Up Mandrels - PMA Tool After selecting the caliber, select each bullet tension expand mandrel desired for your kit. Part Number: EXP- Availability: In Stock. APW Expander Mandrel Set - Precision Shooting Store Youll find over 90,000 products from top brands and hard-to-find unique gun parts, firearm accessories, gunsmithing tools, and other products to maintain, repair, and upgrade your guns for work, home, hobby, and protection. Now stocking most sizes we aim to ship next business day! With the further deepening of economic reform, the company invested more than 4 million RMB to update equipment at the end of 2016, newly purchased one 5m CNC gantry milling machine, two 3m CNC gantry milling machines, one 10m 1250 lathe, etc., which further strengthens the production and processing capacity of the enterprise and brings the quality of our products to a new level. Sinclair Carbide Neck Expander Mandrels are ground from solid carbide stock, which yields closer tolerances and more lubricity. All rights reserved. However, the neck inside diameter needs to be slightly smaller so the expand mandrel can properly size the brass. NO RETURNS/REFUNDS FOR CUSTOM GRIND ITEMS. Whether your process requires a tough, wear-resistant surface, a smooth and polished look, or a rough and durable outer shell, weve got you (and your mandrels) covered. Subtract the 0.004 from the standard bullet diameter, 0.284-0.004=0.280, this will be the final size after expanding. This is ideal, where expanding on the up stroke puts all the stress and pressure on an unsupported case/neck. Our attention to quality and flexibility in innovation has made us manufacturer for leading companies in all industries.Our customers know they can rely on us to consistently manufacture high-quality products that perform exactly as expected. These dealers either do not meet our requirements for FFL transfers, or prefer to not perform transfers for guns purchased online from Brownells. Furthermore, the precision ground expanding detail is high up in the die, slightly below the cartridge's neck / shoulder detail. Both the expand mandrel and the press adapter are laser-etched with the caliber and the bullet tension for easy identification. We have found this is the easiest method to greatly reduce your Extreme Spread (ES) and Standard Deviation (SD) numbers. Today I compared concentricity of loaded rounds, 16 were sized with a standard Hornady full length sizing die with expander ball and then bullets seated with a Hornady seating die. Expanding is more consistent because the brass starts off perfectly centered in the die and is immediately expanded as the brass is drawn out of the die body. For over 75 years, shooters, professional gunsmiths, hobbyists, military/law enforcement armorers, hunters, and gun tinkerers have turned to Brownells for high-quality guns, gun parts, ammunition, and optics. Alternatively, you can use a traditional full-length die (expander ball removed) and use the expand mandrel for final sizing. and bushing dies to set the neck tension or a polished expander ball with the dies so I can . Performance Dynamics, 901 E Lambert Rd, La Habra, CA (2023) The gage pin block will be etched with the caliber and each gage pin location will be noted with the bullet tension and the diameter of the gage pin. Die ONLY expands neck to slightly under bullet diameter. Custom Undersized Mandrel, please specify how many thousandths you would like it undersized in the box below. If you need an additional collet they can be purchased separately HERE. We will contact you as soon as this product is available. Once this sizing is complete perform the final sizing of the neck with the expand mandrel. Over the past few years we have seen a greater need to run new brass cases over and expanding mandrel to properly prepare them for their first firing. Decrease Quantity of 17cal. Our expander mandrels are made .001'' larger than the turning mandrels. Expander Mandrel Set | Axis Precision Worx All the K&M products Ive put on the shelf in my shop are superb. Our neck turning tool mandrels are made from high grade stainless steel on Precision turning centers. RH, thanks for the review! Consistant bullet grip plays a critical role in consistent accuracy and velocity. If you buy a product from us and decide to return it, well take it back at any time with very few exceptions. Each selection allows for selecting an etched press adapter and the corresponding gage pin for that neck tension. Speaking of, no waiting to talk to a real person also. UPDATE as of 9pm AEST 28th: For a listing of our Brownells Europe representatives. })(); Short Action Customs, LLC. Each selection allows for selecting an etched press adapter and the corresponding gage pin for that neck tension. All of our Expander Mandrels are rough turned, next they are precision OD Ground for the full length ensuring that all of the outside detail is concentric and ground in the same operation. Today the same procedure exists with the newer 300 BlackoutAAC and Whisper. An O-ring in the die cap allows the mandrel to float a bit and find its own center within the case neck. Yubei Machinery's existing fixed assets of 12 million, 65 employees, average age of 32 years old, college managers, senior technicians, engineering and technical personnel 12 people. Our mandrels are longer than other expanding mandrels and feature a special dual taper which expands both on the up and down . Reply. Quite often the brass can be harder or softer than expected. Quite often the brass can be harder or softer than expected. I dip the necks in Redding dry neck lube and then run them through the expander. Jeff Lovat Please select from the options above to see detailed restrictions. Using an expander mandrel prior to neck turning sizes the case to fit the neck turning mandrels perfectly. Expander Mandrel 7mm (.283"), Increase Quantity of 28cal. Custom Rod Guide; Remington and Kelbly (Bolt Dia .695 - .700) BAT Actions (Bolt Dia. I appreciate your input here, by e-mail, and discussions on the phone. Proudly powered by WordPress | window.mc4wp = window.mc4wp || { Quick View. Expander Mandrel 6mm (.242"), Increase Quantity of 24cal. Expander Mandrels and Neck Tension - AccurateShooter.com To some extent, you might be able to control this by careful selection of the bushing . Undersized Mandrels available for immediate shipment: 223 Remington and 22/25090602 UNDERSIZE MANDREL .220, 243 Winchester, 6mm Creedmoor, and 6mm/244 Remington 90007 UNDERSIZE MANDREL .239, 6.5 X 55, 260 Remington, and 6.5 Creedmoor 90069 UNDERSIZE MANDREL .260, 270 Winchester90496 UNDERSIZE MANDREL .273, 7mm Rem Mag, 7x57, 7mm/08, and 7mm Express90631 UNDERSIZE MANDREL .280, 300 WSM, 7.5x55, 30/06, 30/30, 308 Win, and 300 Win Mag90480 UNDERSIZE MANDREL .3035. Expanding Mandrel (.337"), Increase Quantity of 338cal. huang_wan If you are using with reloading die having the interchangeable neck bushings, a smaller size bush than regular will work best for you when combined with using these expanders. Monday is a public holiday in QLD, so probably not then. Ensures a seamless transfer of the cartridge neck from the Neck Sizing Bushing to the Expander Mandrel. Location. Sat & Sun: Closed. 21st Century Innovation - Steel Specific Diameter Expander Mandrel - 6mm .240. For example, say you are working with a 7mm caliber (0.284) and you would like 0.004 of bullet tension. Dave @ K&M (verified owner) 12/29/2021. Also if you are annealing brass properly there definitely will be less springback than regular. (excluding presses), ** PLEASE ALLOW UP TO 10-15 BUSINESS DAYS FOR PROCESSING **, Cut out in die provides an easy view for making sure case aligns and setting up depth, Interchangeable Mandrels depending on caliber, Die ONLY expands neck to slightly under bullet diameter, Stainless Parts for a Long Lasting Finish, L.E. James Andrew Luna is a . Expanding is more consistent because the brass starts off perfectly centered in the die and is immediately expanded as the brass is drawn out of the die body. This die is designed to be used on NEW brass cases to prepare the case for the seating operation. $10.00. By stepping up or down on the expand mandrel bullet tension size you can achieve the desired neck tension to your pin gage. Be sure to have your plant builder use Yubei Mandrels because the best equipment produces the best product. Brownells Featured Dealers have agreed to perform FFL transfers on guns purchased online from Brownells. (verified owner) 01/26/2023. Wilson manufactured lock nut -thickness is .225" from inside to outermost edge .270" for height and 1.250" total width OD, Replacement Punch for Full Length Sizing Die. Expanding Mandrel Die-EXP- - L.E. Wilson Neck Up Mandrel (.242"), Increase Quantity of 6mm up from 22cal. Subtract the 0.004 from the standard bullet diameter, 0.284-0.004=0.280, this will be the final size after expanding. So for this operation i think you will find that should now be 0.004-0.005 under. Both the expand mandrel and the press adapter are laser-etched with the caliber and the bullet tension for easy identification. This is fast and efficient, and so far; no lost cases from expanding. Last edited: Aug 15, 2020. Popular Search, Category of China, fixed assets of 12 million, 65 employees, average age of 32 years old, college managers, senior technicians, engineering and technical personnel 12 people, Japan, the United States, India, Vietnam, Turkey, Pakistan, and other countries. If you are also using the reloading dies with the interchangeable neck size bushing those dies usually do not have an internal expander system at all. I have not had a chance to test any loads made with it yet, but brass sized with it were inline with the spec. The shape, finish, and size are the result of years of use and experimentation by many hand loaders.
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