Want a bullet that has both a high BC and a consistent BC? Ballistic coefficient (BC) is a mathematical representation of how efficiently a bullet flies through the air. The following is a 1000 yard .308 ballistic chart that was created using our free online ballistic calculator and details all aspects of the bullets trajectory from the millisecond it leaves the barrel until the time it reaches the 1,000 yd mark. 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. Mag @ 100 yds. These cookies track visitors across websites and collect information to provide customized ads. .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. Pick a tough, bullet with a high ballistic coefficient to get the best out of it..260 Rem. All long-range bullets have three things in common: Theyre long and slender; theyre built to stringent specifications with a high level of quality control; and they deliver ballistic coefficients (BCs) much higher than traditional bullets. To do this, bullets should be compared at a given Mach number (e.g. If we change the density of what the two objects are traveling through, the less-efficient tennis ball will be affected by the change more. BC stands for Ballistic Coefficient. These bullets also feed very well from the detachable magazines being used by most long-range semi-auto and bolt-action rifles. After running the trajectory numbers based on atmospheric conditions here where I live in South Carolina, we get the following results. 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. Available Calibers: 6.5mm, 7mm, and .308. Instead, the BC is best used as a comparative number between different bullets. Lets assume youre shooting a .308 rifle and you have two types of bullets of identical weight. YouTube - Store data on what videos from YouTube the user has seen - 2. Sierra calls their new tipped GameKing bullet the GameChanger. The cookies is used to store the user consent for the cookies in the category "Necessary". YouTube sets this cookie via embedded youtube-videos and registers anonymous statistical data. His books are available in print and eBook format on Amazon. Introducing the latest products from the worldwide leader in ammunition. For example, your bullet doesnt fall more at farther distances because of the distance (the bullet doesnt know how far it is traveling), but rather because it takes longer to reach a farther target, and therefore it has more time to fall due to gravity. AccuBond at 2600 fps. Scroll down to the bottom and you see that Hornady provides most of the information you need. Bullets for hunting, however, might benefit from not having an aerodynamic shape. It starts as a secant ogive like their famous VLD bullet, but as you move toward the bearing surface, the bullet changes to a tangent ogive. Why Is Knowing Your Rounds BC Important? is both capable and popular, especially on the heavy-bodied game where bullet performance becomes critical. ** Hornady BC values have been corrected back to International Civil Aviation Organization (ICAO) Standard Atmosphere (Sea Level, 59 degrees F, 29.92 inHg, 0% Humidity). Under the tutelage of Walt Bergerone of the best bench-rest shooters of all timeBerger Bullets established a reputation for creating some of the most accurate bullets ever produced. This is a much bigger problem with G1 BCs than G7, but there is always some velocity dependence involved in using BCs. Each one of these projectiles is engineered for tight groups at long range, By We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. The cookie is used to store the user consent for the cookies in the category "Analytics". 10 Best 6.5mm Rifle Cartridges Available Right Now 338cal. I may earn a small part of the sale from links to any products or services on this site. @StLPro2A: Youre not geeking out. purchase helps support my work in bringing you more awesome gun and gear articles. We hate SPAM and promise to keep your email address safe. However, you may visit "Cookie Settings" to provide a controlled consent. This cookie is used to keep track on user informations and reports it to Alexa analytics service. Its long and narrow, so the surface area pointing into the wind is very small. Spitzer rounds with a flat base have a much higher BC than Round nose bullets. Remember that in our example, the Matchking had a coefficient of 0.417 while the Pro-Hunter had a BC of 0.185. Did this help sort out just what ballistic coefficient is? You have entered an incorrect email address! Ballistic coefficient (the measurement of how easily the bullet passes through air) is a critical part of the equation, as well. A high BC bullet can maintain velocity better than a low BC bullet under the same conditions. Another thing to keep in mind when comparing BCs is related to caliber. 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. The boat tail helps, but not nearly as much as the point on the front of the bullet. They are also made with the longest possible hybrid ogive and are a tad bit heavier than common bullet weights associated with each caliber. I assume the muzzle energy for the 2 bullets has a typo. A bullets density is a ratio of a bullets mass and its cross-sectional area. Provided by Google Tag Manager to experiment advertisement efficiency of websites using their services. anything extra and your These bullets will withstand high-velocity impact at close range and still deliver expansion at distances to and beyond 800 yards. 5 Mk 1 Rifle: History of the 'Jungle Carbine', Kimber Hunter Pro Desolve Blak - A Lightweight Heavy Hitter, Browning BLR Lightweight '81 Stainless Takedown Lever Rifle, Mossberg Patriot Predator 6.5 PRC Rifle Review, Review: Springfield Armory M1A Loaded Rifle in 6.5 Creedmoor, RCBS ChargeMaster Lite Review: Not 'Lite' on Ability, Remington Model Seven SS HS Bolt-Action Rifle Review. 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. 250 gr. 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. Save my name and email to use for future comments. This brings the cartridge into the mix, and possibly a trade-off in muzzle velocity for heavier bullets. You'll now receive newsletters of our best articles on techniques, Simply, large and light bullets are less dense than small and heavy ones. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. . 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. Join F&S+ to read exclusive stories by your favorite writers. You do not pay If looking to acquire an automated powder-charge dispensing unit to speed up precision reloading, don't judge the RCBS ChargeMaster Lite powder scale and dispenser by its name; the Little Green machine packs a heavy-weight punch with speed and accuracy. When entering this stuff into your Kestrel or ballistic smartphone app, be sure to use the right BC number with its corresponding drag model. I just returned from the range today and found out some interesting stuff about b.c. A more efficient bullet will maintain its speed better, and its not affected as much by the environmental variables. Youtube - Track the views of embedded videos. If more than one bullet shoots equally well, then choose the one with the higher BC. There are a few things you need to understand in order to make a valid comparison. The round design lowers the BC and creates more drag compared to a modern Spitzer round. RifleShooter Magazine editor Scott Rupp breaks down all the features of the Mossberg Patriot Predator rifle chambered in 6.5 PRC. Ballistics is an odd, but fascinating science, and it can be intimidating to go too deep. The pattern element in the name contains the unique identity number of the account or website it relates to. Copyright 2023 Pew Pew Media, Inc. All rights reserved. This is the very basics of ballistic coefficients. Not so long ago a Barrett or Cheytac was needed at a high price for shots out to a mile+. The cookie is used to store the user consent for the cookies in the category "Other. tried some sierra boattail in 300 win. As an extreme example, lets use water because it is easy to picture how much denser it is than air. The Standard projectile is the base we establish to gauge ballistic coefficient. Hornady . Another factor isRead more . A bullets efficiency is measured by its ballistic coefficient (BC). Kimber's Hunter Pro Desolve Blak takes the firm's more affordable mountain rifle to new heights. Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. The main benefit of the 55-grain bullet is its ballistic coefficient. The __qca cookie is associated with Quantcast. Now, to save you the time and effort I put in, Im going to share just about everything I know about ballistic coefficient. To get started, click the link below to visit mymagnow.com and learn how to access your digital magazine. 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. (Examples being rounds like the 30-30.). shooters. 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. The BC of a bullet is a ratio calculated by a mathematical model based off of its density and its particular shape. We appreciate your patience and continued support! It has a tangent ogive, tapered jacket, sleek boattail, and a bonded core that hides behind a grey polymer tip. The new Tipped MatchKing is living up to that legacy. vs 9.3x62 Cartridge Clash. Thanks! The higher the BC, the less drag on the bullet. Get the Most Out of the .30-06 - Shooting Times In general, heavier and larger caliber bullets have higher BCs than smaller calibers, but not always. This is an extreme example but illustrates that the different shape of a projectile will affect your ballistic coefficient. Almost all rounds have a ballistic coefficient of less than 1.0, but large rounds like the 50 BMG can exceed this normal BC. "These new bullets beat everything out there, even at the highest levels of competition, by 20%." - Alan Warner, Warner Tool Company. Ballistic Coefficient values at Mach 1.75 (1954 fps @ ICAO Standard Atmosphere), should be used when calculating trajectories for shooting beyond 600 yds. They need to be able to factor in how far the wind will move their round, bullet drop, and velocity at different ranges and it all ties back to the BC of their particular load. So for purposes of flying through the air efficiently, the bigger the BC number the better. Click below for a FREE LESSON! Ballistic Coefficient is the capacity of the projectile to keep as much velocity as possible in comparison to the standard projectile. His latest projects include an online course to help people get an FFL (. Contributing Editor for RifleShooter Magazine, Brad Fitzpatrick gives us a review of this modernized version of an iconic favorite. Let me hear from you in the comments below! Access features of the Reloading Handbook on your mobile device with the Reloading App. Some manufacturers offer BC values at different velocity ranges. How to choose one of the myriad premium bullets available today? This system is a great way to compare cartridge systems so you can better make an informed purchase. Apr 3, 2014. This interactive bullet database is free and containst 173 caliber ballistics, history, stats, and their trajectories charted out in full detail. A bullet's efficiency is measured by its ballistic coefficient (BC). google_ad_slot = "7610963244"; On the other hand, the G1 BC above 3000 fps can be 0.590, while the average from 3000 fps to 1500 fps is only 0.533. Good question and its a controversial one. Ballistics Basics: Bullet Efficiency And Ballistic Coefficients Tips, techniques, and equipment are applied to these classroom discussions on how to become more proficient and successful at making long-range shots while hunting with AR-platform rifles. The G7 is more representative of the current state of rifle rounds. Although a faster bullet isnt necessarily more accurate, its affected less by gravity and wind. Notify me of follow-up comments by email. The goal was to be able to predict how far projectiles would travel, the arc of flight, and at what velocity they would impact targets. A bullet's BC will differ depending on whether the G1 or G7 drag model is used. //-->, Copyright GunData.org 2015 | Koenig Media, LLC | Links | Sitemap | Advertise. Hmmm Looking at the chart, says bullet drop @ 100 yards: 0.0. Best Long-Range Hunting Cartridges of 2023 | Field & Stream Luckily, there are some awesome ballistics calculators out there. In the world of ballistic coefficients, a bigger number means that a bullet flies more efficiently. Take a look at the bullets themselves and what we learned. But opting out of some of these cookies may affect your browsing experience. of all the other stuff like rifle, ammunition and even reloading. Thats where it started, and since then its gone from simple experiments all the way to engineers and scientists at places like Aberdeen Proving Ground working to improve ballistic calculations.