6mm arc 24 inch barrel velocity chart. One of the significant benefits of the 6mm ARC is its .

6mm arc 24 inch barrel velocity chart Each rifle ships with one 10-round magazine. 3 2170 2255 2330 2400 2460 2520 2565 2610 2640 H4895 25. Attached Files 6mm-arc. Below is a sample 22 ARC bullet drop chart that provides a general idea of the 22 ARC trajectory (24” barrel; sight height 1. 5", I wouldn't count on it. What is 6mm ARC? Jul 11, 2023 · While a 20 inch barrel may not achieve the same muzzle velocity as a 24 inch barrel, it can still provide sufficient velocity for effective usage. The 6mm ARC has also become very popular on the civilian side of things. Any advice would be appreciated. 5mm Grendel cartridge and using a 6mm bullet (. AA2520 Max Load of 29. 512 (G1) / . 5 Grendel (third from left) come close to matching the long-range performance of the 6mm ARC (right), but both fall short. Those changes allowed the cartridge to use high BC bullets. 6mm ARC 105 gr. 5 Creedmoor test rifle, shortening the barrel from 27 to 16. Use a Bear Creek Arsenal ar barrel in your AR15 next build and experience superior performance back by a lifetime warranty! Feb 17, 2025 · A 12. These shorter barrel lengths are perfect for modern sporting rifles, and for using suppressors. 5” 6mm ARC will have very similar ballistics to what a 16” . v-max® item no. So far this upper consists of JP Bolt, (2a Ti regulated BCG or BAD Enhanced), (BAD Ti gas block or SA Ti Regulated gas block), Blk Lbl 17" Handguard with titanium barrel nut. Many shooters opt for a 16″ barrel if they don’t plan on shooting past 500 yards or they’ll prefer a 26″ barrel for mile shots or long range shooting. GMX® (6mm Creedmoor) Item No. The following table presents sample ballistic data for a 100-grain 6mm Remington bullet fired from a 24-inch Ballistic Drop DataSee chart below for all ammunition details. The lighter 103-­grain ELD-­X bullet in Hornady’s Precision Hunter load increases that velocity in the same barrel slightly to 2,800 fps. Posts: 101 Threads: 15 Joined: Jun 2020 #1. Try our 16 inch 6MM Arc barrels to experience a SPR midlength AR 15 for yourself. 480 inches: Be Alert: Publisher cannot be responsible for errors in published load data. The 24" barrel gives the fastest velocities. Neck lengths of about one caliber are thought to be optimal for the best ballistics and accuracy, and the 6mm ARC has a neck length of 0. Aug 9, 2020 · The beauty of both the 6mmARC and 6. 5 Twist Stainless 5/8x24 Threaded Muzzle Dimpled for gas block Available in 10. 378 bolt face, maintaining full lug integrity and potentially enhancing durability (thus “fixing” the issue of premature bolt failure sometimes seen with 6 ARC). 22411. Modern ammunition and barrel design advancements have significantly narrowed the performance gap between different barrel lengths, meaning a 20 inch barrel can still deliver excellent results in various scenarios. Probably not even an 18" barrel. Surprisingly, with a 142gr Sierra MK, the total velocity loss (as measured with a Magnetospeed) was just 158 FPS, an average of 14. 22 ARC Velocity The 7. May 11, 2023 · 22 inches: If you want even more velocity, consider a 22-inch barrel. 56mm NATO (. 56) so it retains velocity better after leaving the barrel. 5grendel load so that might be a massive factor. While it can be used for longer-range shooting with the right setup, the 6mm ARC is most commonly used with an 18-inch barrel and in an AR-15 platform which is by no means a precision rifle platform. 5” turn out, and we’ll report back in the near future. 005 smaller than a 7. Compare the 95 grain SMK in 6mm and . The high velocity allows the bullet to travel faster and farther before it drops due to gravity. 63×39 case. The 6mm ARC utilizes efficient, high-BC bullets to deliver unprecedented performance from the AR-15 platform, and is also used by specialized military groups for their multipurpose combat rifles. … For 6. The rifle-length gas system also keeps recoil mild, and a full 20 inch length keeps rounds at high velocity for extended range use. Ammunition is sold in 20 round boxes. jpgMore on the 6mm ARC: h Because the bullet weighs more, it doesn’t rely on velocity for its terminal effect on animals, so you don’t lose much effectiveness by choosing 16- or 18-inch barrels. Additionally, converting an AR-15 to a 6mm ARC requires only three additional parts. 92 caliber). 62 it's a 7. Jan 31, 2010 · For you guys shooting 16" and 18" bolt action rifles chambered in 6mm ARC, what velocity 18" Ballistics Advantage barrel 18 inch Noveske 6 arc 24" 6MM ARC Complete Upper Assembly for AR15 with 24" 6MM ARC Shaw Bull Stainless Barrel, 15" Rail and Thread Protector. 223 Match bullet. When you say "capable of 600 yards", do you plan to shoot targets at that range? If so, your ~14" pin & weld should get you there no problem. 56mm is a flyweight and the 6mm ARC is a big boy. My loads came from the Hodgdon Web site. While you can find some 120-grain bullets out there, they’re definitely not the norm. 243 inches), researchers developed a low-recoil, high-accuracy round that delivers effective performance at distances of 500 yards and beyond. 1 inches in one-inch increments. Barrel Material. 62×39, the 6mm ARC get some of the shared battlefield cred, too. thought about keeping it and Specs @ muzzle of 24 inch Hornady test barrel: Velocity: 2800 optimum all-range performance and barrel life. Ultimately it is reliant on how fast the ammo is out of the barrel you're using, but if you're hoping for 1000m supers out of a 16" or 14. I am considering building something a bit more handy and less cumbersome than my 24. This 6mm ARC reloading data is intended for use in bolt action rifles safe for pressuresvup to 62,000 psi. Next up will be my Reloaded Ammunition. 2 2170 2255 2330 2400 2460 2520 2565 2610 2640 Varget 26. Post what you have and ACTUAL recorded velocities. 5 Grendel ballistics data. No matter your barrel length, the 6mm ARC rounds have a high ballistic coefficient. Jan 13, 2020 · Recently just purchased a 6mm arc 18” ballistic advantage barrel in 1-7 twist. 56mm. A 20-inch barrel is the best overall length for multiple uses. 308 Winchester alongside for comparison. It uses a . But in our heads the 5. Both have 30-degree shoulders. INDICATES MAXIMUM LOAD — USE WITH CAUTION Rifle Data 6m ARC Ga un) 90 GRAIN BULLETS SECTIONAL DENSITY: 0. 308 Winchester and fits in a lighter and shorter package than the AR-10. Common barrel materials include stainless steel and chrome-moly steel. You’ll get a bit more speed than with a 20-inch barrel. In very simple terms, the 6mm ARC’s exterior ballistics exceed anything currently possible with any other AR-15 cartridge, especially at long ranges. One of the significant benefits of the 6mm ARC is its As an offspring of the Soviet 7. 2444 Feb 13, 2017 · For instance, if I compared the data from row “1”, or one shot from the 28″ barrel and one shot from the 16. 6mm ARC. 5 Grendel is that sleek, high BC bullets do well in short barrels cuz they rely, not on muzzle velocity, but on ballistic coefficient to retain velocity downrange. 5 Creedmoor, 6. 5, 11. 7 2170 2255 2330 2400 2460 2520 2565 2610 2640 Dec 24, 2024 · 6mm MAX vs. ” He says 6mm is only 0. The 6mm ARC provides excellent terminal Aug 12, 2018 · Our friends at Rifleshooter. Midway has a 18 inch Shilen but Shaw offers a 22 inch in 2 to 4 weeks. Based on the 4DOF calculator, factory 108gr ELD Match ammo is barely skimming by at 1184fps with advertised velocity from a 24" barrel at 1000m. A 5. We use M4 Barrel extensions with a manufacturer's Limited Lifetime warranty against manufacturers' defects. Let’s investigate the details to uncover the secrets behind the best barrel length for a . 825 at Velocity (fps) Energy (ft/lb) Trajectory Tables All data from a 24" Bbl, unless otherwise noted. Am I heading in the right direction or should I keep looking. Need a good heart Feb 26, 2024 · Real-world testing suggests that the best barrel length for the . We both have 24" BA barrels, and he also has a 18" BA. Dec 13, 2023 · The 110 SMK or A-Tip are great heavy weight bullets for the ARC. BTHP : 81604 2750: 2580 2417: I've shot 6mmBR out of a 26" at 1000 using my XTC Match Rifle (my old 107SMK load hitting 2775fps average), but it gets bucked by the wind tremendously. The 1:7. The Faxon Match Series 24" Heavy Fluted 6mm ARC AR-15 Barrel is designed for precision and performance, with a heavy fluted design that reduces weight and enhances performance. It blows the doors off the 5. Lots of documented data supporting 24" with a 1:7 twist for the 6mm ARC as the best way to go for consistent long range accuracy. 62 NATO/. 750 Gas Block with a Rifle Length Gas tube. After my first batch of 6mmARC MONSTER 20" barrels, I'm thinking of going to the 12s even before I do the 16s. The chart assumes a 123-grain 6. 5 GII work best in 18" and 20" barrels. We’ll see how the 12. 875 Contour: Medium Heavy . Polymer-tipped hollow point boat tail bullets, which are used in the new cartridge designs by Hornady, tend to conserve velocity more efficiently than traditional soft point bullets. 5 are Carbine Gas 14. 5 Grendel II and the 6MM ARC, of course. Criterion Varmint Barrel 1-7 Twist $ 340. 92) the 6. Note: The chart above is an example of one 22 ARC load. 18IN, 6MM ARC BARREL, RIFLE LENGTH GAS 6mm ARC 105 gr BTHP Hornady BLACK Feb 2, 2023 · For maximum velocity with 5. 243" 58 gr. 516 inches. Reply reply CarefulIce97 Apr 22, 2021 · The 6 BR, 6 BRX with zero freebore with H335 velocity in the 3700-3800 in the BR and 4000+ with 60g Sierra in the BRX using H335 with 7 1/2, barrel life seems indefinite. hornady. Actual ballistic performance may vary depending on bullet weight, lot, barrel length, and environmental conditions while shooting. 5 Creedmoor. com recently did a barrel cut-down test with 6. 223 Remington) is far right. 243) caliber projectile around 2,700 fps with minimal recoil and the 6mm ARC is short enough to fit within the dimensions of a standard AR-15 magazine and it performs very well out of an AR-15 with an 18 inch barrel (what we tested). In general, longer barrels (18-24 inches) are preferred for maximizing the 6MM ARC’s range and accuracy, especially for hunting or long-range shooting. 62X39 AK (actually is not a 7. Jun 18, 2021 · If Hornady’s advertised velocities were, as most advertised velocities are, based on a 24-inch barrel, this equates to a very reasonable 14. 5mm Grendel bullet is fired from a 20-inch barrel. Nearly every 6. Jan 26, 2024 · The 6mm ARC is a newer caliber that hasn’t quite gained as much traction as other long-range calibers like the 6. 8 I hear the 90gr Gold Dots are the bullet to shoot. TECH SPECS: CALIBER: 6mm ARC; BARREL: 20”, 1:7. 6mm ARC at the left, with a . 5 Grendel and the 6. Includes BCG & Charging Handle. Jun 19, 2020 · Designed for superior long-range accuracy, the ENDEAVOR line features a 20-inch barrel so that you can squeeze out every drop of ballistic performance from this exciting new caliber. 750 Diameter at Gas Shoulder; 2lb 12oz; Oct 31, 2022 · Hornady offered a solution to the demand for a better AR-15 round, and the 6mm ARC has proven a capable alternative to the 5. 24 33 Missouri. Best Barrel Length for 6mm Arc. 96 caliber), compared to the Grendel’s 0. This listing is for Barrel Only!!! NO Bolt - Bolt available as Option 6mm ARC Barrel Blank by Criterion, Bartlein, Krieger Hand Lapped Chambered by Precision Firearms 1-7. For best accuracy, a heavy / bull barrel is preferred. 2 Grains for 3074 FPS from a 24" Test Barrel. For example, a 10 inch barrel would be considered a handgun since it would attach to a handgun stock; whereas a 24 inch barrel would be attached to a rifle stock and designed accordingly. The beauty of both the 6mmARC and 6. Oct 18, 2021 · I think I'm going to build a 6mm arc. In fact, I’d guess that 60% of the new hunting rifles in most gun stores today are chambered in a cartridge designed by Hornady. I have a bunch of Bartlein 6mm 5R 7. This chart takes into account factors such as bullet drop, velocity, and energy, offering a detailed snapshot of the bullet's behavior. 7 2170 2255 2330 2400 2460 2520 2565 2610 2640 Oct 25, 2022 · Checking to see if anyone has real world data for 6 ARC velocities for 20", 22", and 24" barrels in an AR. The 6MM Projectile, essentially the holy grail of bullets for coefficientancy and is widely used in precision and hunting. 56, but ignores that it’s up to 2 times the weight. The best barrel length for 6mm ARC is 18 inches for a rifle with good velocity that is still relatively easy to transport. The Sanders Armory 24" 6MM ARC Straight Fluted 416R Stainless Steel Barrel with 1:8 Twist Rate with Rifle-Length Gas system. Below, we’ve compiled a chart of 6. 00 Add to cart; Douglas Tactical 6mm ARC Barrels 1-7 Twist $ 430. 5/8×24 Threads. Feb 8, 2024 · What I would consider to be fairly normal velocity loss for a 20 Inch Barrel, and 24" barrel numbers. 224 Valkyrie (second from left) and 6. Theoretically, a 22-inch barrel would be the best combination between somewhat manageable maneuverability and maximum velocity, but it's a non-standard length. Seem like a rifle +2 with an adjustable gas block is the way to go for my application. Mar 31, 2021 · The 6mm rounds have very high ballistic coefficients (more aerodynamic than 5. 224" @ 2750fps. 00 Read more Jan 5, 2022 · The barrel features a tapered profile to make handling easier, while retaining enough mass for repeatable accuracy at long range. 6mm ARC: Warning! Case: Hornady; Twist: 1:7. I have a twenty inch barrel and run about 2950 fps with an eighty five grain bullet. 5″ barrel, I would have calculated a total change in velocity of 254 ft/sec, and an average of 22. 4 FPS per inch of barrel length. 3 Grains for 3061 FPS from a 24" Test Barrel. 223 will, as far as muzzle velocity and wind drift. Feb 24, 2024 · I've got a Centurion 18" 6mm ARC barrel on order. com/assets/pcthumbs/photos/1410997173-6mm-ARC---Velocity-vs-Barrel-Length-infographic. Barrel Length graphic: https://press. 490 inches, shortened slightly from the 6. The Performance Series air gauge tested with for long-distance shooting with a below 1 MOA. 5 and 16 is mid length gas 18 is rifle length gas 20, 22, 24 Features: Caliber: 6MM ARC Barrel Material: Premium Criterion 416R stainless steel blank Barrel Length: 24 Inch Twist Rate: 1-7. Apr 26, 2023 · For long range shooting the 6mm ARC is best used for shooting around or under 500 yards. Always refer to your specific ammunition's packaging for the most accurate data. Ballistics: Ammo Description Jun 30, 2021 · By taking a 6. EABCO 22 ARC Barrel for AR15 Rifles. The 20+ 6mm ARC ballistics chart is a valuable resource for shooters, providing a comprehensive overview of the cartridge's performance at various distances. im assuming ill be getting better velocity and BC with a, for ex, 105gr 6arc load than i would a 105gr 6. 1 ft/sec per inch. 440, just 0. May 19, 2022 · Doing a precision build that can stretch its legs and reach out and touch on the 6mm Arc AR15 platform. 6 ARC makes for a lightweight AR-15 hunting rifle that can be carried all day long and fired standing or from a quick supported Hornady 6mm ARC 103gr ELD-X Ammunition Specifications (Tested with a 24-inch Hornady test barrel) Muzzle Velocity: 2,800 fps; Muzzle Energy: 1,793 ft-lbs (1,038 ft-lbs @ 400 yards) Ballistic Coefficient:. With a muzzle velocity of 2,750 fps from a 24-inch barrel, the ARC 108-grain ELD Match bullet generates 500 more foot-pounds of energy at the muzzle than a 75-grain . I'm not loading max with either LVR or CFE 223. 22 ARC, whether you’re using it for hunting, competition, or plinking. So, with the ARC and barrel life, consider your powder choices, and your bullet weight will dictate a lot of your powder choices. While both the 6mm MAX and 6mm ARC are designed for the AR-15 platform, the 6mm MAX offers certain advantages. Of course, all of this varies depending on the ammo you’re shooting, but we can also easily compare it to the more popular 6. Although there’s really no reason I wouldn’t pick one up, the truth is that there are simply more attractive options with more affordable factory loads and a wider selection of rifles and parts. i am wondering if anyone has any hands on re 6mm CM (or even 243 & other similar 6mm) from a 20' bbl. The 6mm ARC has a standard muzzle velocity of just over 2,700 fps and a pretty flat trajectory for long-range shots. I want to stay with a 22 or 24 inch for velocity and don't want to wait a year for it. We have had great success with whitebox 108ELDMs. It is NOT for use in AR-15 style (gas gun) rifles. By the numbers, the 6mm ARC case head measures 0. 24" 6MM ARC Heavy Stainless AR15 Barrel by Satern Barrels The accuracy and precision of Satern barrels is surpassed by no one in the firearms industry. and,yes,i have done as much on line research (rifle shooter,factory web sites etc) as i can find. Jun 17, 2024 · The Hornady 22 ARC 75 grain ELD Match bullet has a muzzle velocity of 3,075 fps, whereas the 88 grain ELD Match bullet has a muzzle velocity of 2,820 fps. 218 DIAMETER: 0. Nov 24, 2022 · I will try to post a pdf that Hornady put out when they introduced the 6 Arc, at the bottom is a chart of MV vs barrel length, for the 108-110 bullets. 5 twist 5R blanks and I am going to make up a bunch of 6mm ARC chambered barrels and I am curious what people feel is most popular for a barrel length in the 6mm ARC - - I am thinking 20" because it strikes the balance between being carryable and maneuverable, yet long enough to get a decent velocity out of the cartridge. Highlights A 24-inch 6mm ARC barrel is long enough to ensure the bullet propellant completely burns and generates maximum force to eject the bullet from the muzzle. 5 Grendel. 56 and 6. Your working with a relatively low pressure round, 52,000 PSI and the ARC, and 6. 5 inches; Primer: Federal 205M Small Rifle Match; Barrel Length: 24 inches; Trim to Length: 1. Jan 18, 2025 · A typical load using a 105-grain bullet can produce muzzle velocities of around 3,200 feet per second from a 26-inch barrel. The fastest loads are: CFE 223 Max Load of 30. 5, 12. Dec 29, 2019 · and 6. Made from high-quality 416R stainless steel, this barrel features a nitride finish for maximum corrosion resistance, nickel teflon extension for added durability and lubricity, and 5R rifling for excellent accuracy and May 11, 2023 · 22 inches: If you want even more velocity, consider a 22-inch barrel. The high muzzle velocity of the 6mm Arc contributes to its flat trajectory, which is highly desirable for long-range shooting. LVR gives me about 25 to 50 fps more velocity. Use a Bear Creek Arsenal ar barrel in your AR15 next build and experience superior performance back by a lifetime warranty! Jun 26, 2024 · X-Caliber doesn't offer a rifle +1 option on the 24" barrel. 00 Add to cart; Criterion 6mm Creedmoor Barrel 1-7. 5 18 20 (bolt) 24 the more velocity you start losing per inch as you go shorter 12” Monster 6mm ARC Barrel- five shot Jun 8, 2022 · Realistically, 6mm is twenty thousandths, . 223 Wylde or 5. 5 Grendel’s 1. Pig_Popper Member. Notably, it utilizes the standard . Jan 23, 2025 · Note: Ballistic data can vary slightly depending on the manufacturer, barrel length, and ammunition specifics. 5, 14. Hornady load data shows 2740 fps in a 24" GAS GUN (2815 fps with a 28" barrel), and 2850 fps in a 24" BOLT GUN, (LeverEvolution) for the 108-110 Short barrels and 6mm ARC. Oct 1, 2020 · The SAAMI chart indicates that the muzzle velocity is 2,700 fps, while Hornady produced 2,750 fps out of a 24-­inch barrel. 8 fps loss in velocity for each inch of barrel loss. 22 ARC is between 18 and 24 inches. Muzzle velocity changes per inch of barrel length ranged from 6 ft/sec per inch between 20 and 19 inches to 63 ft/sec per inch between 19 and 18 inches. 24 inches: For maximum bullet velocity and accuracy at distances over 500 yards, go for a 24-inch barrel. 5" rifling twist is faster than most 243/6mm barrels and meets the original design specs for long range HEAVY 6mm ARC bullet performance. The . CFE223 and LeverEvolution give the best velocities for heavy bullets in the 6-ARC. 56x45mm NATO, a 20-inch barrel will give the most velocity possible out of a common barrel length rifle. Buy 22" Stainless 6mm ARC Barrel from Grendel Hunter | Medium contour | Rifle Length Gas. 243" 90 gr. 5 twist, 6mm ARC, MT 416SS, SBN; MUZZLE: MUZZLE: SV Brake, threaded 5 Nov 22, 2022 · The 6mm ARC has a much flatter trajectory than a 7. 5mm Grendel cartridge features a 123- grain bullet. 140 diameter: 0. Nov 8, 2021 #1 Nov 8, 2021 #1 Jan 5, 2022 · The 20 inch length of this barrel imparts incredible velocity to an 1:7 inches; Muzzle: 5/8×24 18 Inch 6mm ARC Barrel with Stainless This Bear Creek Arsenal AR-15 24" heavy contour 416R Stainless Steel with spiral flutes with 6mm Arc barrel has a rifle length gas system with a 1:8 twist. Perfect for long-range shooting, this barrel is built to meet and exceed SAAMI specs, providing remarkable performance that rivals the 22-250 Remington. 5 grendel forum group buy! Mar 25, 2021 · Hornady bumped back the Grendel’s shoulder and switched from a 6. 243 inch (. Pair the 6mm ARC’s intelligent design and impressive ballistics with Bill Wilson’s precision-built Tactical Hunter in 6mm ARC and you can see why this rifle/load combination is ahead of the curve. 234 inch (. 6mm Remington Ballistics Chart: Sample Data. 258 (G7) Recommended Twist Rate: 1:8" minimum for optimal stabilization; Quantity: 20 cartridges per box; Hornady Item Number Velocities were established from a 24-inch barrel. All data from a 24" Bbl, unless otherwise noted. Me and a buddy collectively have 3 arcs. Mar 7, 2023 · Hornady has an incredible track record with cartridges over the last 20 years: 6. Apr 9, 2021 Initial velocity is 2421fps, Just got a 20" 6mm arc barrel in from the 6. 16” 6MM ARC SPR Mid Length 1/7 416R SS, Premium Series Your Rating. 020" larger than a . reason asking; got a 24" 6mm savage/criterion FS on here and going nowhere. I was thinking that if i went 6. 5”). Aug 24, 2019 · hope this is the right place to ask this. Jul 20, 2023 · Bill reports: “Muzzle velocities ranged from 2,893 ft/sec at 24″ to 2,598 ft/sec at 16″ for a decrease in muzzle velocity of 295 ft/sec. All our ammunition is loaded using new manufactured brass. Aug 2, 2024 · The 6mm ARC’s case capacity is about 43 grains of water, and its case length is 1. pdf (Size: 140. A 24-inch 6mm ARC barrel is long enough to ensure the bullet propellant completely burns and generates maximum force to eject the bullet from the muzzle. 00 Read more; Douglas Tactical 6mm ARC Barrels 1-7 Twist-MATTE BLACK $ 475. Jun 3, 2020 · The 6mm Advanced Rifle Cartridge (6 ARC) by Hornady is a new cartridge that can fire a sleek 6mm (. This designation is controlled by the length of the barrel. The 20+ 6mm ARC Ballistics Chart. The list goes on. 5, 16,18, 20, 24 inch lengths 10. This extra long EABCO 24" HBAR Accuracy Barrel® was designed to squeeze the most from 6mm ARC in velocity, performance, and accuracy capabilities. 56 NATO/. May 4, 2014 · Sep 24, 2014 917 829 South. 5mm to a 6mm projectile. I am looking at building a second (of my own) 6 Arc build for an AR. I have 600 rounds 105gr Hornady Black ammo on hand. indicates maximum load — use with caution rifle data 6m arc bol un) 58 grain bullets sectional density: 0. Best Bullets The 6mm Remington was designed The ballistic information based off five grain types on a 24 inch test barrel for muzzle velocity are 30-06 Ballistics Chart Aug 27, 2024 · Muzzle Velocity, Kinetic Energy, and Trajectory. 020” larger than 5. 223 Remington, providing reduced wind drift and higher retained velocity/energy at any range. This is true whether you shoot it from a 12", 18" or 24" barrel. 81 KB / Downloads: 55) This Bear Creek Arsenal AR-15 24" heavy contour 416R Stainless Steel with 6mm Arc barrel has a rifle length gas system with a 1:8 twist. 5 PRC, 300 PRC, 17HMR. (Photo: Faxon This designation is controlled by the length of the barrel. For a more compact setup, a 16-inch barrel is viable, though it may slightly reduce velocity. This EABCO 24" 22 ARC HBAR Accuracy Barrel® is crafted for AR-15 rifles, maximizing velocity and precision. 5G barrels in 12. 5 Twist $ 520. 5 Optimized for 6MM ARC ballistics Polished and hand-lapped for peak precision Fluted: 5-Fluted for non-opposing Flutes for higher strength to weight ratio Finish: Polished Extension: PF Premium Nickel Boron Coated Gas Block Size: . 5G I would be shooting lighter 95-105gr bullets to help offset the loss of velocity due to barrel length and a slightly faster powder, but its seeming like thats a sweet spot bullet weight range for 6arc too. 6mm ARC (Gas Gun) 108-110gr 6mm ARC Max Charge Velocity vs Barrel Length (inches) POWDER MAX CHARGE 12" 14" 16" 18" 20" 22" 24" 26" 28" IMR8208-XBR 25. ikg wawzw xvowiz xpglf jyaye uuia vhg ixrte qffzt erl rofdv vji ijnnva epmjm fyik