The ELD-X (Extremely Low Drag - eXpanding) bullet is a technologically advanced, match accurate, ALL-RANGE hunting bullet featuring highest-in-class ballistic coefficients and consistent, controlled expansion at ALL practical hunting distances. The boat tail helps, but not nearly as much as the point on the front of the bullet. Speed and Energy are figured out using an average of all the known cartridges. Fifty years ago, when hunters argued over which cartridge was best, they focused on muzzle velocity. It also demands purpose-built bullets. You can, of course, calculate the ballistic coefficient yourself, but why bother when the manufacturer tells you? There is a pretty big difference in trajectory between the round nose bullet and the two pointed bullets, making it obvious why it is folly to choose a round nose bullet for long range shooting with a high velocity rifle like a 6mm Remington or .243 Winchester. When using 90-grain bullets with a very high ballistic coefficient at .563 G1 BC, the 224 Valkyrie is a legitimate three-quarter-mile cartridge. Ballistic Coefficient (BC) values can, and usually do change in value with changes in velocity. The cookie is used to store the user consent for the cookies in the category "Performance". I wonder if anyone has validated a continuum mechanics equation with rifle testing a super high speed sensors. For this example, I am going to use a Hornady 30-06 Springfield load with a 125 grain SST projectile, With that said, the number the manufacturer gives you is a rough estimate. I suspect this would lower the BC..but any idea how much? Ballistic coefficient is typically measured with a 3 digit expression. A bullet's efficiency is measured by its ballistic coefficient (BC). Spitzer, which means pointed, is a more efficient shape than a round nose or a flat point. Three words: Use Berger Bullets! One must take barrel twist into account depending on the type of 243 Win cartridge that is fired. Sectional Density is a measurement that reflects the ratio of somethings mass to its cross-sectional area. The ACE Match is only available in one caliber, and you might be wondering why this bullet is even mentioned. .243" 100 grain Round Nose (BC .216): -1.5" @ muzzle, +4.8" @ 100 yards, +6" @ 200 yards, 0 at 300 yards, -15.9" @ 400 yards, -46" @ 500 yards. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. Variation in BC with Velocity (G1, G7, etc), Manufacturing Effects on: BC, Accuracy, and Precision. This interactive bullet database is free and containst 173 caliber ballistics, history, stats, and their trajectories charted out in full detail. For the last several years, Hornady has developed some of the best long-range bullets on the market. Its currently available in loaded ammunition and as a component for handloaders in .277, .284, and .308 calibers. BC is mostly used by rifle shooters. And when practicing @ a firing range, you want to use bullets designed for what you want to do; the bullet that gives you the best score shooting @ targets & the one that is best for hunting any particular animal will probably be quite different. All of the figures that follow are taken from the Speer Reloading Manual Number 13. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. Its a lead-tipped, jacketed bullet with a flat-point tip and a flat base. In short, a high ballistic coefficient is indicative of a rounds ability to resist drag. I would imagine the best BC would be the Berger 168 VLD. This interactive bullet database is free and containst 173 caliber ballistics, history, stats, and their trajectories charted out in full detail. It may seem as simple as comparing numbers printed on the bullet box, but there are some considerations to be aware of to make intelligent comparisons of BC. If you chase this rabbit down the hole it will lead you around the internet and sometimes confuse you, anger you, and then all of a sudden youll have a breakthrough. Heck, few whitetails, antelope, mule deer and even average black bears measure much more than 12 inches broadside through the vitals. Finally, if your goal is to indicate performance potential of a bullet at long range, you have to consider the muzzle velocity of the bullet as well as the BC. You dont have to worry about that as your ballistic software will deal with it. The higher the number the less drag, and the more efficiently the bullet cuts through the air. Copyright 2001, 2013 by Chuck Hawks. There are a few things you need to understand in order to make a valid comparison. e dont want slow bullets. RELATED: Heavey Gets Schooled in Long-Range Shooting at Gunsite Academy. Along with offering many other premium bullets as factory-loaded ammuniton, Federal makes its own long-range bullet, the Edge TLR, which offers ideal close and long-distance terminal performance. Learn all the important stuff about handgunswith none of the attitude. In the world of ballistic coefficients, a bigger number means that a bullet flies more efficiently. Introduced in 1997, the .260 Rem. Granted, for 80 percent or more of the game (whitetails) shot by Americans, bullets don't really need to hold together and penetrate particularly deeply to provide clean, humane kills. Backfire LLC owns and operates this website. Simply, large and light bullets are less dense than small and heavy ones. The round design lowers the BC and creates more drag compared to a modern Spitzer round. To throw a little light on the subject (and out of my own curiosity), I recently shot a selection of eight of my favorite bullets into 10-percent gelatin at 50 and 400 yards. As an example, the Hornady 6.5mm ELD Match bullet has a BC of 0.646 for the G1 drag model but a BC of 0.326 for the G7 drag model. I dont see how a BC can be constant for varible velocities over a given trajectory. Its long and narrow, so the surface area pointing into the wind is very small. Mag., .308 Win, .30-06, .300 Win. A more efficient bullet will maintain its speed better, and its not affected as much by the environmental variables. We call it the Goldie Locks zone - a sweet spot. The new Sako Finnlight II sports an innovative stock and Cerakote metal paired with the terrific 85 action. Thats way too complicated, so lets use an illustration. The difference is eye opening. It wasn't hard to choose a bullet diameter and weight and a cartridge through which to test it: America is still a .30 caliber nation; 180-grain projectiles typically offer excellent sectional density and ballistic efficiency; and the .300 Win. Its just the love that goes into solving the problem. Introducing the latest products from the worldwide leader in ammunition. They like that they are lead free; that they retain 100 percent of their weight; and penetrate deeply. For example, a Hornady 100 grain round nose 6mm bullet has a BC of .216; a Hornady 100 grain spire point 6mm bullet has a BC of .357, and a Hornady 100 grain boat tail spire point 6mm bullet has a BC of .400. Ballistic calculators like smartphone apps and Kestrel devices take as inputs ballistic coefficients for a given drag model. .22-250 Vs .223: Is Extra Velocity Worth Extra Money? Almost any bullet can be made to expand at long range, but the thin jackets and soft cores that promote such expansion don't support bullet integrity when impact distances are close and velocities extremely high. The results are chronicled and analyzed here, beginning with criteria. When doing pre-purchase research either on the web or at the store, the increased performance of the ELD Match and ELD-X bullets wasnt always realized in a head-to-head BC comparison. It adjusts the trajectory prediction for each bullet type. Hornady's Precision Hunter 178-grain ELD-X at 2,600 fps is probably the best long-range option, but look also at the new 168-grain Berger Hybrid Hunter load from Federa l. Ballistic Coefficient . Put another way, it's the ratio of the bullet's sectional density to its coefficient of form. Weve got a dedicated section for the AR-15 here. Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. The _ga cookie, installed by Google Analytics, calculates visitor, session and campaign data and also keeps track of site usage for the site's analytics report. Ballistic Coefficient values at Mach 1.75 (1954 fps @ ICAO Standard Atmosphere), should be used when calculating trajectories for shooting beyond 600 yds. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. 8. Heres what you need to know about drag models. If a bowling ball was used for the drag model, the BC would be very high because the bullet would be much more efficient as it flew through the air. However, some point out that since rotational velocity maintains itself much longer than downrange velocity, it must, to some extent, affect expansion via centrifugal force. These bullets also feed very well from the detachable magazines being used by most long-range semi-auto and bolt-action rifles. Another factor isRead more . Niccolo Tartaglia was the first to notice that a shot trajectory was continuously curved. Korean combat vet playing around with the 300 BLK in a mini 14 and the 7.62 in a mini 30. I shoot a variety of fire arms and have hunted and shot competitively for .quite a few years. you a link to reset your password. Ballistic Coefficient (BC) values at Mach 2.25 (2512 fps @ ICAO Standard Atmosphere) should be used when comparing to other published BC values within the industry. 308 Ballistics Chart & Coefficient. Inspired by Bob Beck, the host of the TV show Extreme Outer Limits, the Berger EOL was designed by noted ballistician and bench-rest shooter Bryan Litz. The following at the most standardized: The G1 is the oldest and still the most commonly used. BC stands for Ballistic Coefficient. Ballistic Coefficient is a bit of a new word when we look at the history of physics. With an Accu-Fit stock and left hand adjustable bolt, this rifle is a perfect choice for anyone! Making those long range shots past a 1000+ nice! How to choose one of the myriad premium bullets available today? Spitzer rounds with a boat tail have a slightly higher BC than Spitzer rounds with a flat base. Fluid properties (air) vary with velocity and environment. The following photographs of our test subjects show an unfired bullet, a sectioned bullet and a bullet recovered from gel at 400 yards and a bullet recovered from gel at 50 yards. Hornady . It was nice to see it all brought together in one. AccuBond at 2600 fps. The bottom line is this. 30cal and. By adding an aerodynamic resin tip to the MatchKing, Sierra was able to reduce drag and produce a more favorable down-range ballistic coefficient. These differences are real, but unlikely to make or break a shot at a big game animal. This cookie is set by GDPR Cookie Consent plugin. Lets design a standard bullet and do all the math for that one. Bullets for hunting, however, might benefit from not having an aerodynamic shape. In the world of ballistic coefficients, a bigger number means that a bullet flies more efficiently. The B.C. Starting all three bullets at a muzzle velocity of 3100 fps from a scoped 6mm rifle zeroed at 300 yards, the trajectories are as follows. At the peak of the market-hunting era, waterfowlers We interviewed fourth-generation master flintlock rifle maker John From forcing cones to action bars, here's a Sign up for the Field & Stream newsletter and get the latest intelligence straight to your inbox. Then, for other bullet types, we can create a fudge factor that adjusts the standard bullet trajectory model. Thats basically what the ballistic coefficient does. The higher a bullets BC is, the less drop, and wind deflection it will have at all ranges for a given muzzle velocity and environment. Article No. was better than the .30-06 because it bested that venerable round by another 300 fps. Articles may contain affiliate links which enable us to share in the revenue of any purchases made. Beth Shimanski of Savage introduces their all new straight-pull rifle. Mach 2.0 (2,233 fps @ ICAO Standard Atmosphere) and Mach 1.75 (1,954 fps @ ICAO Standard Atmosphere) BC values are also available. For example, a lead round-nosed bullet can sure pack a punch! In conjunction with the hollow nose cavity and a lead-alloy core, the tip optimizes penetration and tissue destruction over a wide range of distances. Learn the 3 most popular shooting stances & more. CNC machined solids are probably the best for higher BC (handloaded only) and the most expensive to produce. Gain a deep knowledge of ballistic science and access our improved ballistic calculator. Theyre sequentially packaged and arent bulk washed after manufacture to protect their integrity. COURSES. YouTube - Store data on what videos from YouTube the user has seen - 2. Hes a lifelong shooter who just happened to be mediocre enough with a gun and a keyboard to combine the two and write. I just returned from the range today and found out some interesting stuff about b.c. This aerodynamic tip enhances the bullets ability to resist gravity and wind, and it ultimately reduces flight times. Therefore, these variables are mostly a concern when youre trying to determine the change in your bullets speed from the last time(s) you went shooting. .375 H&H Magnum (L), .338 Winchester Magnum (R) Public Domain. A quarter flying this way makes a lousy bullet, right? Get proficient on YOUR time. Some big, heavy, and efficient bullets like the .50 BMG can have a ballistic coefficient greater than one, but that topic is for another day. 2023 Backfire LLC, a limited liability company headquartered in Utah, USA, 195gr Berger Extreme Outer Limits (EOL) Elite Hunter. 270, 7mm,. It is accurate, has an excellent ballistic coefficient, and provides moderate recoil. When comparing BCs of different bullets, it is important to use an apples-to-apples approach. The new Tipped MatchKing is living up to that legacy. Getting consistent hits at extreme distances requires specialized rifles and optics. Good write-up Tom. The G7 drag model, which is gaining popularity, is based off of a more aerodynamically shaped options with a boat-tail base (it tapers back). You might see different BC numbers for bullets at different velocity ranges. doubleclick.net - browser supports cookies. There are just so many factors to consider, many of which the manufacturer cant know, including atmospheric conditions, the drag created by your rifling, and more. It has a tangent ogive, tapered jacket, sleek boattail, and a bonded core that hides behind a grey polymer tip. Conversely, it's not that difficult to produce a bullet that will hold together at close-range, high-impact velocities, but the heavy jackets, harder lead-alloy cores and bonding processes used to create such bullets can inhibit expansion when distances stretch and velocities drop. . At the other end of the bullet, a boat tail (or tapered heel) reduces drag compared to a flat base. Niccolo Tartaglia was the first to notice that a shot trajectory was continuously curved. Bullets with low sectional density are short and fat. Available Calibers: 6.5mm, 7mm, and .308. YouTube - Store data on what videos from YouTube the user has seen. Its great for lever-action rifles and hunting. As for distances, I'd already decided to choose 50 yards as the close mark, and after some discussion the editor settled on a max of 400 yards- a long shot, for sure, but a range at which most accomplished riflemen can make clean, ethical hits from field positions. 2023 Outdoor Sportsman Group. Bullets that are too heavy can drop sharply because of an increased rate of drag. A bullet with a high ballistic coefficient is slippery and less subject to drag (slowing down) as it continues on its merry way. No math just brute force raining down pain. //-->, Copyright GunData.org 2015 | Koenig Media, LLC | Links | Sitemap | Advertise. Available Calibers (in 2020): .264, .277, .284, and .308. Each one of these projectiles is engineered for tight groups at long range, By Note that with bullets of the same weight and style, such as the 100 grain .243" and .257" bullets or the 150 grain .311" and .323" bullets, the smaller diameter bullet always has the superior BC due to its better sectional density. These cookies ensure basic functionalities and security features of the website, anonymously. Click below for a FREE LESSON! This is shown by the smaller difference in BC between the two pointed bullets, .357 for the flat base and .400 for the boat tail. There are lots of ways to describe what ballistic coefficient is. Ballistic coefficient makes a tremendous difference in downrange ballistics. If you look at the G1 bullet image, youll see that it resembles a common projectile shape from the 1800s era, give or take. Classic, soft, cup-and-core bullets perform beautifully on deer-size animals. Both objects will slow down much faster in water, but the arrow wont slow down as much from its original speed in the air as will the tennis ball. This means that the speed and energy will vary from cartridge manufacturer to manufacturer. Weve built dozens of ARs and well cover all the best AR-15 upgrades such as handguards, triggers, BCGs, gas blocks, and more. The Standard projectile is the base we establish to gauge ballistic coefficient. vs 9.3x62 Cartridge Clash. Simply put, sectional density is the ratio of weight to the diameter of the bullet. Ballistic Coefficient (BC) is a measure of external ballistic performance for bullets. Now imagine a nail flying point first. Out of curiosity, how do you calculate the bc? Now, lets launch them both at 2,750 feet per second from a Sierra Bullet Blaster 7000 rifle and see what happens. AccuBond Long Range bullets will hold up to extreme, high-velocity impacts at close range, and still deliver expansion and penetration at crazy long distances. Mag. Please let me know how it can be improved upon. Mathematically, it is the ratio of a bullet's sectional density to its coefficient of form. Two measurements that help define the downrange performance of a bullet are ballistic coefficient and sectional density. Technically, its the ratio of the weight to the surface area, but its easier to think in terms of diameter as thats how bullets are measured. So what is the standard projectile? Originally, those smart people who did a lot of testing on the range worked out predictive models for bullet flight based on that standard projectile shape. Then youll repeat the process. The Remington Model Seven is ready, willing and able to handle just about any task. Installed by Google Analytics, _gid cookie stores information on how visitors use a website, while also creating an analytics report of the website's performance. Google DoubleClick IDE cookies are used to store information about how the user uses the website to present them with relevant ads and according to the user profile. Unfortunately its not as simple as just comparing the single numbers. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. The same Doppler radar verified Heat-Shield Tip is unaffected by aerodynamic heating and retains its shape to offer some of the highest BCs you can find in a hunting bullet. The nail flying point forward has a very high sectional density because its long and skinny. You can also find him on Facebook, Twitter, Instagram and Pinterest. They will also sometimes require a faster twist rate. Vimeo installs this cookie to collect tracking information by setting a unique ID to embed videos to the website. A decent BC for a bullet based on the G1 drag model is in the 0.5-0.6 range, whereas the same bullets BC based on the G7 drag model will be in the 0.2-0.3 range. The Matchking has a coefficient of 0.417. After spending some time with this database you will most likely find the bullet that best meets your needs. Kimber's Hunter Pro Desolve Blak takes the firm's more affordable mountain rifle to new heights. Rest assured, there will be performance differences between every two bullet designs of the same weight and different shape, just not as dramatic. Until now. Ballistic Coefficient: 0.14 Bullet Weight: 115 gr Initial Velocity: 1100 fps . A bullet's ballistic coefficient is based on a few different factors, the first of which is weight. My next preferences is Sierra, Swift and Hornady. doug macray today,
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