Mag. Which explains why .22 bullets drop so much at long range and are so subject to wind drift, compared to larger caliber bullets with superior sectional densities (and hence, BC's). From front to back along the flight path, the quarter is only 0.069 inches long when its flying face first because thats the thickness of a quarter. For big-game hunters, the Nosler AccuBond might offer the best balance of terminal performanceexpansion and penetrationthat can be found. This means you have the option to read your magazine on most popular phones and tablets. Knowing ballistic coefficient allows you to calculate how far your round flies as it loses velocity. The 7mm caliber offers some of the highest BC bullets on the market. Much of your article is reinforcement of what I have gathered previously in several different articles. The belted cartridge can be loaded for velocities up to 3,500 fps with lighter bullets, but the best long-range loads use a heavier bullet with a higher BC and velocities between . 338cal. Their Hybrid Target design incorporates two different shapes within its nose. 30cal and. Ballistics Coefficients - Rifle 1450 .224 50 BlitzKing .142 .248 @ 3300 fps and above.243 between 2650 and 3300 fps .232 between 2050 and 2650 fps . Enjoyed your discussion on BCs. That doesn't seem to be an overstatement, based on the Ballistic Coefficients (BC) WTC has published on this new line of bullets. A cookie set by YouTube to measure bandwidth that determines whether the user gets the new or old player interface. Our first offering in the Blackjack Bullets lineup is the 25 Caliber 131 grain ACE Match bullet with an outstanding 0.330 G7 Ballistic Coefficient (1000 yd Average BC) tested on the Oehler 88 System. RELATED: Heavey Gets Schooled in Long-Range Shooting at Gunsite Academy. Remember that in our example, the Matchking had a coefficient of 0.417 while the Pro-Hunter had a BC of 0.185. This is a specialized bullet intended for a specialized purpose: killing big-game animals at extreme distances. 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. Im not an expert at long range shooting by any means, but from what Ive read and seen consistency is king. Sectional density is easy to calculate because it simply depends on the bullets caliber and weight. Spitzer, which means pointed, is a more efficient shape than a round nose or a flat point. Simply put, ballistic coefficient is a fudge factor. Some of the data that are collected include the number of visitors, their source, and the pages they visit anonymously. Am I long range shooter? 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. document.write(new Date().getFullYear()) Copyright Hornady, Privacy Policy | CCPA Request | Accessibility Policy | Terms of Use, Designed and developed by IdeaBank Marketing, drag coefficient based trajectory calculations, Product Warning & Recall Notice - Item #8263, Product Warning & Recall Notice - Item #90226, Product Warning and Recall Notice - Item #9249, Product Warning & Recall Notice - Item #81153, Product Warning & Recall Notice - Item #82730. Mach 2.0 (2,233 fps @ ICAO Standard Atmosphere) and Mach 1.75 (1,954 fps @ ICAO Standard Atmosphere) BC values are also available. I just returned from the range today and found out some interesting stuff about b.c. 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. Ballistic calculators like smartphone apps and Kestrel devices take as inputs ballistic coefficients for a given drag model. Getting consistent hits at extreme distances requires specialized rifles and optics. The password should contain at least 8 characters with at least one number or special character. 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. CNC machined solids are probably the best for higher BC (handloaded only) and the most expensive to produce. RELATED: 10 Best Long-Range Hunting Cartridges. How to Sight in a Scope - Step by Step Guide. This includes the rounds trajectory, velocity, and wind drift. Even their ammo is great. With modern ammunition, we are seeing higher ballistic coefficients such as the ridiculously high BC of the. First Look: New Super-High-BC Flat Line Bullets He is a well-known entrepreneur, having started many successful online brands, and lives in St George, Utah. In words, the Ballistic Coefficient of a bullet is it's sectional density divided by its form factor. The cookies is used to store the user consent for the cookies in the category "Necessary". I do not know how I could have possibly left out Lapua bullets. Stock Dia. The Ballistic Coefficient of Rifle Bullets - CHUCKHAWKS.COM Join F&S+ to read exclusive stories by your favorite writers. 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. Hornady originally published 800 yard* average Ballistic Coefficient (BC) values for ELD-X and ELD Match bullets. #4. Its .224-diameter bullet with ridiculously high Ballistic Coefficient (BC) number can maintain supersonic speed and drift less in the wind right up until about the 1,300-yard mark. Its currently available in loaded ammunition and as a component for handloaders in .277, .284, and .308 calibers. This difference in the two BCs for the same bullet is because an efficient bullets performance will be much better than the G1 model and only slightly better than the G7 model. Nice article, well explained except for the fact that you assumed people would know that they were both zeroed at 100 yards. The BC of a bullet is a ratio calculated by a mathematical model based off of its density and its particular shape. Fifty years ago, when hunters argued over which cartridge was best, they focused on muzzle velocity. This website uses cookies and third party services. The Hornady 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. Ballistic Coefficient (BC) values can, and usually do change in value with changes in velocity. Get the 76th edition of the World's Greatest Gun Book. On such heavy-bodied game animals, which are challenging to hunt and rarely offer a perfect broadside presentation, I'm a believer in using premium, heavy-for-caliber bullets. Scott Rupp gets a chance to talk to Aaron Oelger about a few new products from Hodgdon and why reloading store shelves are empty. YouTube sets this cookie via embedded youtube-videos and registers anonymous statistical data. Weve got a dedicated section for the AR-15 here. of all the other stuff like rifle, ammunition and even reloading. Therefore, rather than simply loading down to simulate 400-yard impact velocities (which has the unavoidable side effect of reducing rotational velocity), we set gel blocks out at 400 yards and shot them. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". Maybe NOT, POF 5PK MP5 The Budget Reverse-Stretch Semi Auto from Pakistan, ATI Schmeisser 5.56/.223 AR15 60 Round G2 MLE Magazines just $39.99 each ~ VIDEO, Survival Deal: Thyrosafe Potassium Radioactive Iodide Tablets $21.95 FREE S&H, Ammo InStock: Remington Ammo 22LR Golden Bullet 36Gr 1400 Round Bucket $104.49, Brownells Coupon Codes www.brownells.com Updated Monthly. .243" 100 grain Spire Point (BC .357): -1.5" @ muzzle, +3.8" @ 100 yards, +4.7" @ 200 yards, 0 @ 300 yards, -11.1" @ 400 yards, -30.5" @ 500 yards. All RifleShooter subscribers now have digital access to their magazine content. Simply, the faster one starts out, the more remaining velocity it will have at the target. Compared to the current-issue service cartridges it's slated to replace like 5.56x45mm and 7.62x51mm, the .277 Fury offers greater energy, improved terminal ballistics and higher ballistic coefficient bullets that slip . These days, most bullet data is published with BC numbers for the traditional G1 drag model, but given the explosion of long-range shooting interest, more are also publishing numbers for the G7 model which is more accurate for sleek and slender long range bullets. 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. Thanks again for your very informative article. So, in this case, the quarter has a very low sectional density because its mass is divided by a large number that represents its surface area. To further assess the importance of a boat tail, note these pairs of Speer spitzer bullets of the same weight and caliber. Ballistics Test: The Best Big Game Bullets - RifleShooter Part of that consistency is having the same powder charge, same projectile, same rifle, and, of course, the same BC.
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