6mm br saami specs. Sep 8, 2022 · You might be asking, "with these results, why mess with the cartridge?" and that's a fair question. According to Norma the barrel life of a 6mm Norma BR is about twice that of a 243 Winchester, somewhere over four thousand rounds. This die offers full length, concentric sizing to ensure that your brass is resized to precise SAAMI specifications, which improves consistency and performance across all your rounds. Yes it is designed to run in AR15-platform rifles. 360 Aug 3, 2015 · Similar threads SAAMI 6 BR free bore ?? Baddog0302 Sep 17, 2016 6BR, 6BR Improved & Wildcats Replies 6 Views 1,837 Sep 28, 2016 6 mm BR Bench Rest Remington SAAMI/CIP Headspace Gauges- Pacific Tool and Gauge offers five lengths of headspace gauges per rifle caliber on chambers. Shooter's Guide for . Made to SAAMI specifications or custom specifications for standardized cartridges and to the current industry standard for popular wildcat cartridges. Jan 1, 2022 · Most people are over saami pressure (or what would be saami if it were approved) when it comes to BR cases. Dec 19, 2023 · December 19th, 2023 All About the 6mm ARC — Performance, Specs, Video Reviews In June 2020, Hornady introduced the 6mm ARC, a new SAAMI cartridge optimized for AR-platform rifles*. There was one shooter who said they were using Norma brass. Dec 19, 2021 · Custom fast twist 243 will compete with 6mm Creedmoor 6mm Creedmoor is best choice for PRS and similar 6mm Creedmoor chamber geometry is tighter and more geared towards precision My . The Lapua brass is headstamped 6mm BR Norma-Lapua. A small rifle primer that is easier to seat and allows for higher case pressure than a large rifle At Clymer, we manufacture our Headspace gauges from precision ground hardened US steel to SAAMI's ANSI tolerances. SAAMI New Cartridge & Chamber Maximum Average Pressure (MAP)* = 52,000 psi Instrumental Velocity: 108-gr @ 2,700 fps Crusher pressure limits not established. SAAMI Standards Development and Maintenance Procedure – The purpose of this Procedure is to establish a uniform process that is accredited by the American National Standards Institute (ANSI) for of the development and maintenance of American National Standard (ANS) by Sporting Arms and Ammunition Manufactures’ Institute, Inc. 243) caliber intermediate rifle cartridge introduced by Hornady in 2020, as a low- recoil, high- accuracy long-range cartridge, designed for use in the M16 and M4 platforms at the request of a specialized group within the United States Department of Defense for its The Mighty Armory 6mm Norma BR Sizing Die is a Precision Match Series Full Length Sizing Decapping Die that resizes for full length / shoulder bump up to -. Feb 23, 2015 · In fact it is the chamber dimensions, not the cartridge dimensions that changed. Both are custom built guns and weigh very similar. 5 Grendel cartridge necked down for 6mm rounds and the shoulder moved back 0. Sep 20, 2024 · We take a quick look at 6mm ARC, a cartridge that’s ballistically superior to 5. The 6 BRA has nearly identical dimensions with a 40° fire-formed neck. 5mm cartridges, but with much less Jun 19, 2020 · 6mm ARC is so new that as of the writing of this article, published load data did not exist! But I wanted to get some real-world results with my new CMMG Endeavor 300 6mm ARC AR-15 published as soon as I could, and therefore embarked on an exciting journey. The short reality is somewhat different. May 30, 2025 · Here is a consolidate summary of all the rifle cartridges that are currently recognized by SAAMI. Any advice is appreciated. 004 (BR Go acts as NoGo for Ackley style chambers) May 24, 2020 · Why 6 Dasher? Like a lot of people, I’m attracted to the 6mm caliber for PRS type shooting. But there are many factors. 22 in) long, and shoulder angle of 30 Apr 11, 2023 · What is the 6mm GT and why is it becoming a hot topic in the PRS world? We take a closer look at this round, its spec, and its advantages. Benchrest, Tactical Aug 13, 2024 · The round was a prominent wildcat in the 1960s, and Remington eventually submitted the 6 BR for SAAMI acceptance and, by the late 80s, was chambering rifles and loading factory ammunition for its 6mm BR Rem. 104 Freebore Uses headspace gauge #0020 BR Go -. The purpose of this is to provide a quick glance of cartridge specs for the curious mind. Question I have is what reamer is recommended? Plan on shooting 105-108's gr bullets. 6mm Norma BR The 6mm Norma BR cartridge introduced by Norma in 1996. That pushed-back shoulder does reduce case capacity (and velocity), but we assume Hornady did that to Sep 6, 2021 · SAAMI New Cartridge & Chamber Maximum Average Pressure (MAP)* = 52,000 psi Instrumental Velocity: 108-gr @ 2,700 fps Crusher pressure limits not established. What the SAAMI spec is missing, is an explanation that the overall height of different primers vary due to the design of the cups and anvils. The 6mm BR that is most commonly used today is also called 6mm Norma BR, "6BR Norma", or just plain "6BR". [2] It is one of the most accurate cartridges available at distances of up to 300 meters. 5mm versions alongside the 6mm BR and its Dasher, BRX etc offshoots. 62×51mm NATO /. Louis Palmisano (thus the PP), the bench rest winners were often the 222 Remington and the 6x47 Remington (the latter being a necked-up 222 Remington Magnum). They are the SAAMI minimum and maximum dimensions for new brass. 560". 243/6mm is good to go in Factory, but needs 2. 56 NATO in almost every way. Let's say it is on the long end at 6 MM NORMA BR | Reloading Data for hand loading ammunition | NormaReloading data for 6mm Norma BR SAAMI was founded in 1926 at the request of the federal government and tasked with creating and publishing industry standards for safety, interchangeability, reliability and quality, coordinating technical data and promoting safe and responsible firearms use. Dimensions in Inches. The Dasher is not just a pretty catchy name given to it by the creators to differentiate it from the 6mm BR and BR variants from which it was wild catted, it actually has a backstory too, but more on 6mm Norma BR The 6mm Norma BR cartridge introduced by Norma in 1996. 62x53R case. 223 Rem Guide for . Though there are very slight differences between the SAMMI spec for the 6mm Rem BR and the CIP spec for the 6mm BR EXPLANATION OF PRESSURE TERMINOLOGY The SAAMI Pressure data outlined in this section is based on a Maximum Average Pressure (MAP) for each cartridge and a Coefficient of Variation of 4%. 030. 559" OAL. Recommendations of the task forces are submitted for review by the entire Technical Committee. That pushed-back shoulder does reduce case capacity (and velocity), but we assume Hornady did that to create a Introduction to the SAAMI and CIP Max Cartridge Min Chamber drawings used to dimensionally define cartridges and chambers. Jan 7, 2013 · New Lapua brass measures 1. Load data for ammunition in caliber6 mm Creedmoorwith all popular powders and suitable bullets, as well as ballistic statistics and technical specifications. The 6MM BR uses the standard BR headspace gauges. The 6mm Advanced Rifle Cartridge (6×38mm), or 6mm ARC for short, is a 6 mm (. So, the caliber development guys at Peterson had to decide which dimensions they were going to make their casings to. Actual production brass may vary slightly from these measurements. It completely dominates 100- and 200-yard Group BR Shooting. pdf), Text File (. Take the 6. Load data for ammunition in caliber6 mm B. SAAMI New Cartridge Drawing 6mm Advanced May 2, 2008 · While the pocket dimensions have a reasonable tolerance range, the specs tend to add to the confusion when the range on the primer height shows values that can exceed the pocket depth. P. . 375 and mostly 2. 560″. 6 Dasher Primers Mar 20, 2020 · While doing a research for another article, I visited the New Cartridge & Chamber Drawings page of SAAMI website and bumped into a new SAAMI accepted cartridge called 6mm Advanced Rifle Cartridge (6mm ARC). Norma started with the 6mm Remington Benchrest and increased the base dimension slightly. com is the best guide for 6mm BR Benchrest precision shooting, complete with 6BR FAQ, Reloading Data, Shooter Message Boards, Reader Polls, and Photo Gallery. There is a lot of hoped for or imagined history related to the 22 BR and 6 BR cartridges. For tooling with other bushing options or carbide, please give us a call! Our Premium Pilot Chamber Reamers are individually hand-stoned to cut smooth and chatter free. The Mighty Armory GOLD MATCH rifle series is a Precision Match Series sizing, decapping die that offers FULL LENGTH, concentric sizing to SAAMI spec standards with correct bullet tension, to ensure safety, reliability, accuracy and 6mmBR. Light bullets use slower twist and short throats, heavy bullets slow twist long throat. (“SAAMI”). 223 Remington Brass, 22 bullets, powder, primers and Mike J's 6mm Ackley Improved Reloading Page Providing load data and information on the 6mm Ackley Improved Cartridge Also known as the . Brownell's carries little tools you can slip into a piece of brass and force into the chamber that helps put numbers on that length margin. The cartridge has a bullet diameter of . S. 5 g), thus realizing the long-range capabilities of the cartridge. 6mm BRA #1 Live Pilot High Speed Tool Steel Finish Chamber Reamer Print #1323 . 243 bullets, 30BR cartridge, 6mm Norma Improved, gun barrels, powders, primers, gunstocks, dies), accurizing, 1000yd ranges, ballistics 6mm-BR-Rem-70gr-version-9-0 Aug 8, 2023 · If you study reamer prints versus the SAAMI specs, you will see there is some variation in how much margin they leave for case neck length. I. Links to technical data and drawings for the newly SAAMI accepted Cartridge and Chamber designs not yet included in SAAMI Standards are listed below. 441 COAL without the bullet falling out. 6MM PPC -- The Benchmark of AccuracyDeveloped by Louis Palmisano and Ferris Pindell (left and right in photo), the 6PPC is the King of the Hill in short-range benchrest competition, the most accurate cartridge ever invented. Carbide reamers feature a . Best site for precision rifle accuracy and accurate cartridge shooting. We trim all our cases to 1. Other changes involved longer throats in the chambering to accomodate the VLD style of bullets being used, and the CIP specifications allowed for higher Chamber pressure maximums of 58,740 PSI versus the low 6mmBR FAQ covers 6mm BR Norma Benchrest & 6BR shooting, with 6mm BR Norma Reloading Data, 6mm BR Cartridge Specs, 6BR Barrel twist, OAL, Recoil + velocity estimates, chambering. 200" + . These are produced by our subsidiary ECT (Elliot Tool Company), but I still personally hand-finish the Match Grade reamers. 005. Mighty Armory specializes in the design and manufacturing of reloading dies that load to SAAMI Spec. Jan 16, 2022 · The specs in the drawing above are for the brass. There were some very minor dimensional differences in the case, but they did main ain the same case length. Sep 2, 2019 · 6 Dasher Brass 98% of people use Lapua brass for 6mm Dasher, so there isn’t much need to show a chart for that! Lapua doesn’t make brass specifically for the Dasher, but most start with Lapua’s 6mm Norma BR case and fireform it for the Dasher (What is fireform?). Remington cut over to the 1. Hornady ballistician Jayden Quinlan said, “The 6mm ARC began with a simple question: What can we do with today's technology to maximize the performance May 2, 2025 · Mighty Armory's Resizing & Decapping Die for the 6mm BR is specifically designed to meet the exacting standards required for competitive shooting. The headspace specs are shown in the chamber drawing. 6BR brass, 1. 560" or longer. The SAAMI spec from base of the case to the 0. It was designed from the beginning to optimize accuracy, barrel life, and case capacity in a 6 mm cartridge for 300–600 metres (328–656 yd) target shooting. SAAMI is the organization at the forefront of promoting firearm safety by creating standards that ensure the safety, reliability and interchangeability of firearms, ammunition, and components. By contrast the OAL spec for 6mm BR Remington is 1. Oct 9, 2017 · The 6mm Benchrest (6mm BR or 6BR) is a nifty cartridge. Load data for ammunition in caliber6 mm GTwith all popular powders and suitable bullets, as well as ballistic statistics and technical specifications. Mar 8, 2011 · In fact it is the chamber dimensions, not the cartridge dimensions that changed. 268 Neck . SAAMI VOLUNTARY PERFORMANCE STANDARDS 8 EXPLANATION OF PRESSURE TERMINOLOGY The SAAMI Pressure data outlined in this section is based on a Maximum Average Pressure (MAP) for each cartridge and a Coefficient of Variation of 4%. 243 bullets, 30BR cartridge, 6mm Norma Improved, gun barrels, powders, primers, gunstocks, dies), accurizing, 1000yd ranges, ballistics Jan 17, 2022 · In attempting to use a Hornady headspace comparator gauge to verify SAAMI specs, I find that I'm confused with the specs. Will it work in your rifle…. Also of Forster follow the minimum CIP quote for the cartdridge the FL die that I've make a case more than this minimum Jan 4, 2014 · I'm thinking about building a 6BR for my next comp gun. 56x45 rifles. 6. 555-1. 6MM NORMA BR, 6BR ACKLEY IMPROVED, AND 6MM DASHER The two most popular 6BR-based cartridges I've seen in the space are the 6 BRA (6mm BR Ackley Improved) and the 6mm Dasher. There is no SAAMI or CIP spec for 6mm Dasher. Product standards for firearms and ammunition are developed by two Product Standards Task Forces, one for ammunition and one for firearms. The new 6mm ARC is basically a 6. Jul 25, 2023 · I've looked at and read in detail MANY things and found many supposedly "last word"/ultimate authority diagrams like from CIP, SAAMI and from various die and/or bullet manufacturers and reloading manuals and find that there seems to be little agreement on the case dimensions (actually in thousandths of an inch) or chamber specs, what name (Rem 6mmBR. com has 223 243 308 6mm accuracy reloading data. Dimensions in inches. , (SAAMI®) has announced the acceptance of three new rifle cartridges for SAAMI standardization. All HSS reamers have a 3/8" square drive shank. 520". 5 g), Norma standardized their set of chambering specifications for a very low drag (VLD) bullet of over 100 grains (6. We can grind a square drive on a carbide reamer Jul 3, 2022 · The 6mm ARC cartridge is a new SAAMI-spec cartridge based on the 6. Mar 15, 2020 · I’ve not seen any credit-claiming web-blasts on this one yet, but SAAMI published cartridge and chamber specifications for a new cartridge I think will be a great new option in the Mini-length Action and MSR market: the 6mm Advanced Rifle Cartridge. Dec 1, 2024 · They have a . 010" Mar 21, 2018 · From the main site: The 6mm BR that is most commonly used today is also called 6mm Norma BR, “6BR Norma”, or just plain “6BR”. SAAMI Rifle Cartridge Drawings Index - Free download as PDF File (. Explore SAAMI pressure standards for lever-action firearms, including their significance, applications, and safety considerations. The PPC team was made from Oct 18, 2024 · For cartridges that do not follow SAAMI specifications, like the 6. Cartridges like 6mm Creedmoor and 6×47 Lapua offer much of the ballistic performance compared with 6. 30. 243 (1:8 twist rate) and Gavin’s 6mm Creedmoor head to head are very similar rifles to shoot. They will require a small de-capping pin, just like Peterson’s 6 BR casings. 223 Rem hunting, 223 AI and 5. The 6mm BR Norma is a centerfire rifle cartridge designed for target shooting and varmint hunting. I found these three prints. SAAMI spec for the 6mm BR Norma case is 1. 243 Win shooting, reloading, and accuracy. 5×47mm Lapua has a base diameter and overall length similar to the 7. It was introduced by Swedish manufacturer Norma in 1996, and is based on a necked-down version of the 7x57mm Mauser case. That pushed-back shoulder does reduce case capacity (and velocity), but we assume Hornady did that to View SAAMI chamber & cartridge drawings from UniqueTek, Inc. 243 bullets, 30BR cartridge, 6mm Norma Improved, gun barrels, powders, primers, gunstocks, dies), accurizing, 1000yd ranges, ballistics Best Forum for 6mm BR Norma, 6BR, 6MM Lapua, 22BR, 6XC shooting, reloading, rifle competition. 555" OAL; Original Rem. 6BR FAQ, Reloading Data, Message Boards, Reader Polls, and Photo Gallery. 243 inch diameter. 560 spec in 1989, prior to that it was the Sep 13, 2023 · What is a 6mm Dasher The 6mm Dasher is a centerfire rifle cartridge designed for long-range shooting. A mechanical necking-up process will always shorten the brass considerably, and, depending upon tooling/lube/etc. This cartridge was based on the original 6mm Remington Benchrest case. It is based on the 6mm BR Remington cartridge, although where Remington's cartridge was intended for bullets of about 70 grains (4. Two are JGS and one is PTG. Ensure precision and performance—download your files now. 6mm BR Message Boards, 6BR Reader Polls, Photos. Jul 3, 2022 · The 6mm ARC cartridge, a SAAMI-spec cartridge, is based on the 6. 555" when any one reaches 1. com 6mmBR. 5 Grendel necked down to 6mm, with the shoulder moved back around . txt) or read online for free. " Ed P. Active Reloading and Reloader forum for 6mm BR Benchrest and 6mm precision shooting, complete with 6BR Norma FAQ, Reloading Data, Shooter Message Boards, Reader Polls, and Photo Gallery. The most I could go was around 2. Surprisingly this data isn't too easy to find, so I have done the research for you. 223 Remington reloading, 223 Rem accuracy, . Reduced barrel wear compared to 6mm Norma BR The 6. 308 Winchester, allowing it to accept the same bolt heads and fit into similar short actions and magazines. 570": Lapua 6mm BR "NORMA" brass, of a Gold Box, is usually about 1. 6mmBR. Reproduction forbidden as well as in the form of extracts without approval of C. 400" dia point on the shoulder is 1. 5 Creedmoor and similar are great, but the recoil can prevent you from seeing your trace (and misses), and it can be difficult to get back on target between shots. 556-1. Bore size like Frank mentioned is one that is often times overlooked. 243AI Reference Page Feb 19, 2023 · I started reloading 6mm BR Norma for the first time and when I just started to try to load at SAAMI spec with new Lapua 6br brass and 68gr Euber bullets I found it basically impossible to load to 2. 243 bullets, 30BR cartridge, 6mm Norma Improved, gun barrels, powders, primers, gunstocks, dies), accurizing, 1000yd ranges, ballistics 6mmBR. This Feb 2, 2022 · NEWTOWN, Conn. , vary considerably (Lot to Lot) as well. 5x47 Lapua, which follows CIP specifications, you should email and ask Forster directly for information. 17mm) and a case length of 1. Jan 17, 2024 · Does anyone know the length for a minimum SAAMI headspace? Thank you. 88mm). These drawings will be incorporated during the next revision of the relevant SAAMI Standard. 243 inches (6. This document is a table of contents listing cartridge and chamber drawings for centerfire rifles. Following the instructions for use I measured for headspace 20 virgin Lapua 6mmbr brass cases. Its labeled 6MM BR Remingtion. 6mm BR | 6BRX | 6 Dasher | 6 PPC | 6x47 SM | 6XC | 243 Win | 243 AI | 243 WSSM | 6mm Rem 204 Ruger | 221 Fireball | 222 Rem | 223 Rem These High Speed Steel reamers are made to SAAMI/CIP minimum tolerances and are live piloted tools that come with a standard smooth bushing installed. Though there are very slight differences between the SAMMI spec for the 6mm Rem BR and the CIP spec for the 6mm BR Norma, the OAL case length is the same. the 6mm BR Norma in 1996. Jan 9, 2010 · I received a Redding Instant Indicator-Headspace & Bullet Comparator for Xmas. But the official SAMMI cartridge OAL is the same: 1. American-made brass rifle casings designed by, and for, long-distance shooters and reloaders. Bullets, powder, brass, accurate loads. 0070". AccurateShooter. 14 were 1/1000 short and 6 were 2/1000 short compared to the length that was established at Jan 28, 2022 · SAAMI New Cartridge & Chamber Maximum Average Pressure (MAP)* = 62,000 psi Crusher pressure limits not established. The actual headspace dimension spec is 2. 5 Grendel case necked down for 6mm bullets, with the shoulder moved back 0. It's best to send in actual dummy brass cases when having a reamer made. [3][4] This cartridge's accuracy is produced by a combination of its posture, being only 31 mm (1. The combination of a low recoil impulse and excellent performance at the 600 yard line have earned it a great reputation among the target sh… Jun 21, 2013 · Here is a table of the minimum and maximum primer pocket and primer dimensions. . R. Normawith all popular powders and suitable bullets, as well as ballistic statistics and technical specifications. 243win and 6 creed I think (and there are no 6GT factory rifles that will meet the rifle specs anyway). Our Premium Pilot Chamber Reamers are individually hand-stoned to cut smooth and chatter free. This May 26, 2020 · The original SAAMI OAL spec for the 6mm BR was 1. Feb 27, 2017 · However given the absence of major corporate support (Lapua aside), its long term survival will depend on it being adopted as a precision orientated custom rifle/handloading staple in both 6mm (‘wildcat’) and 6. From the new SAAMI site you can access hundreds of FREE official cartridge diagrams and chamber drawings for all ammo types: Rimfire, Pistol Cartridges, Rifle Cartridges, and Shotshells. Feb 7, 2021 · For NRL Hunter, you can only run 6GT in Skills division. 6mm GT – The 6mm Dec 19, 2024 · December 19th, 2024 6mm ARC — An Efficient 6mm That Runs in an AR15 In June 2020, Hornady introduced the 6mm ARC, a new SAAMI cartridge optimized for AR-platform rifles*. The 6mm refers to the caliber or bore of the bullet, which is a 6mm or . The 6mm ARC (Advanced Rifle Cartridge) SAAMI cartridge (and chamber specs) was introduced in January 2020 and revised in June 2020. 243 Winchester and 6mm . 557". Match event calendar and rifle competition accuracy training tips. 243 Ackley loads, go to Jeff Milender's . Technical Resources: American National Standards The key to achieving consistent, safe, and accurate rounds is reloading to SAAMI specifications. 5438" - 0. To my knowledge, by the time of writing this article, no company has announced this cartridge yet. 060” flash hole diameter, same as Lapua’s small rifle primer pockets. 700" min length per SAAMI max length spec, which effectively narrows it down to . 243 bullets, 30BR cartridge, 6mm Norma Improved, gun barrels, powders, primers, gunstocks, dies), accurizing, 1000yd ranges, ballistics The 6mm PPC (Palmisano & Pindel Cartridge), or 6x38 PPC as it is more often called, is a centerfire rifle cartridge used almost exclusively for benchrest shooting. Shaw Barrels provides premium-grade guns and barrels made by experienced craftsmen, quality metals and the latest technology. There is no established SAAMI specification for 6. Do NOT use these diagrams as the basis for creating reamers or tools. many times yes. Dec 19, 2024 · December 19th, 2023 All About the 6mm ARC — Performance, Specs, Video Reviews In June 2020, Hornady introduced the 6mm ARC, a new SAAMI cartridge optimized for AR-platform rifles*. 5 Creedmoor as an example. At the time of the 22 PPC and 6mm PPC being developed by Ferris Pindell and Dr. Yes, it can be used in AR15-platform rifles. We have a few other cartridges that fall into this same situation within our (Lapua's) line, such as the 7. Dotted Grids are 1/2 square. 4375" cylindrical shank. Jul 23, 2020 · July 23rd, 2020 6mm ARC Cartridge — SAAMI Specs, Build Requirements, Videos In June 2020, Hornady introduced the 6mm ARC, a new SAAMI cartridge optimized for AR-platform rifles*. It is known for its high accuracy, low recoil, and flat trajectory, and Oct 26, 2016 · Changing the chamber specifications required that they give the cartridge a new name, and they chose to call it the 6mm Norma BR. 244 Remington Improved If you are looking for . 57 inches (39. 030″. And that’s the subject of this article: chronicling my first loads (I did not have factory ammunition to test) and validating claims Feb 16, 2022 · The 6mm GT was introduced to SAAMI by Hornady with a 109-grain bullet traveling at a velocity of 2,910 fps and a Maximum Average Pressure, or MAP, of 62,000 psi. We can grind a square drive on a carbide reamer Courtesy of "Steve's Reloading Pages": 6mm BR Remington 6mm BR Norma I have no way of knowing if these are SAAMI specs, but they will give you an idea of the differences. Do NOT substitute these drawings for official SAMMI or CIP specifications. Mar 22, 2015 · Standard 6mm BR Remington rounds can be shot in 6mm BR Norma rifles, but you'll be dealing with a significant jump to the lands, and an excessively faster twist for it's lighter bullets. Dec 4, 2011 · New SAAMI Website Offers Free, Printable Cartridge Diagrams SAAMI recently rolled out a new website loaded with invaluable info for shooters. That pushed-back shoulder does reduce case capacity (and velocity), but we assume Hornady did that to Jan 4, 2004 · Yes, through MidwayUSA we sell both a SAAMI standard 6mm BR Norma reamer (solid pilot) and a Match Grade reamer (live pilot). The chamber dimensions are shown in a different drawing. Rifles and gear reveiws from champions Oct 26, 2013 · This from the 6mm BR Cartridge Guide on this web site: 6mmBR Cartridge Basics The 6mm BR that is most commonly used today is also called 6mm Norma BR, “6BR Norma†, or just plain “6BR†. Sep 17, 2016 · There are two types of 6mm BR one is for light bullets such as about 70 gr and one for the heavy bullets about 105 gr. Equipment reviews (. — The Sporting Arms and Ammunition Manufacturers’ Institute,® Inc. 6mm BR and 6mm BR Norma use the same case specifications however the difference between the two is the cartridge overall length specification with the BR Norma utilizing a longer heavier bullet. 5x47. This chamber is well suited to the Berger, Hornady, Nosler and Sierra competition bullets in the 100- 108 gr range and the 115 DTAC. The primary work of SAAMI is done by its Technical Committee in the establishment of industry standards. b4qyevwj yk2zn wjj z4en iky 7mgd gqncn9u nuxv6mn 8j5 awvqp