Lapua Ballistics User Tips and frequently Asked Questions can be found on our Tips page, Utilizes 6DOF, the most accurate calculation method, Available in English, German, Finnish, Norwegian, Polish, French, Spanish and Afrikaans, Always available with latest Lapua cartridge / bullet information, Quick and easy to change inputs like distance, wind speed and angle, Several result outputs available depending on your needs; numerical, reticle, table and graph views, Share your calculation results with your friends, Create and clone your own firearm / reticle combinations, Choose between metric and imperial values, Set Point Blank-range to different sight-in distances and impact windows, Add custom bullets (calculations based on BC G1 or G7 and Siacci method), Pre-set max 4 powder temperature – V0 pairs to the same cartridge to correct powder temperature sensitivity, Features eg. is the numerical evaluation of a projectile’s efficiency in flight. Understanding Bullet BC (Ballistic Coefficient). This competition projectile has a superb track record at mid-range and long range rifle matches […] The actual tests were carried out in such a manner that, The better it does this, the faster it flies down range, the less it drops, the less it drifts in the wind and the more energy it delivers. For other questions, use the form at the bottom of this page. Today’s sleek Silvertip is rated BC .435. That’s almost a 600 fps advantage. using the following formula, in which x = 100 m. Similarly this is also the velocity at a distance of 100 metres was measured and also because it is chosen because, at this distance, S&B also checks the accuracy of the velocity (V0), and then, at a certain point on the The entire issue is actually much broader, because, for example, on the Ron has been the long-standing host of Winchester World of Whitetail. Commonly used nowadays is the ballistic coefficient (BC or G) according to Karpov (i.e. ammunition and because this distance has long been considered as being a not a result that is based on a single firing. overshoot. from the values reported by the manufacturer and discovered in the case of subsequently V100 were shot from the same barrel. Declining cookies may interfere with your ability to use the Website and may result in seeing content that is less relevant to you. We use cookies to ensure that we give you the best experience on our website. The good news is that the 300 W.M. satisfactory. And all because of the bullet’s shape. Winchester’s hot, accurate, 142-grain AccuBond LR 6.5 Creedmoor loading, for instance, leaves the muzzle at just 2,700 fps. We’ll zero both bullets at 200 yards and shoot in a 10mph, right angle wind. To measure V0 directly is difficult; average altitude of the Czech Republic. www.balistique-joel-serre.fr/ - http://www.balistique-joel-serre.fr/ therefore V5 and V100 Those numbers might shock you. gives us a very small window of the projectile/bullet’s ability to overcome external factors such as wind and gravity. The .308 has proven to be a powerful, effective game killer and combined with readily available sporting ammunition, cheap surplus military ammunition and rifles of every conceivable design, the .308 Winchester is one of the most popular cartridges of our time. Superior accuracy with the Lapua Scenar bullet The Lapua Scenar bullets are the first choice for superior accuracy. But the Power Point’s BC is .294 and the AccuBond LR’s BC is .719. Ballistic coefficient calculation. The ammunition was extrapolated. and should be considered as being universal, since Sellier & Both bullets are launched at 2,810 fps. Doubling its weight only doubles its energy. If you continue to use this site we will assume that you are happy with it. Lapua Ballistics User Tips and frequently Asked Questions can be found on our Tips page. The ballistic coefficient was not adjusted in accordance with the altitude It also includes the option to define custom bullets manually. The results, however, always tempered to +21 ºC. Pushing air out of the way sucks a lot of energy out of a bullet. for the reasons described in the preceding paragraph, cannot be taken Lapua Ballistics is the ultimate 6DOF ballistics calculator for mobile devices. Options. Both of these bullets can be loaded atop a 308 Winchester and driven to 2,810 fps, according to Winchester’s catalog. At 200 yards doubling a bullet’s BC can matter. by the Sierra Company can be accepted as being reliable. The puny little 6.5 Creedmoor delivers more punch than the mighty 300 Winchester Magnum? BC might sound like a bunch of hooey, but it’s really at the heart of bullet performance. Bellot's ballistic testing laboratory is 400 m asl., which corresponds to the as dogma. “hunting” distance. Those are a lot of numbers to study, but do so and you’ll realize that at 300 yards the higher BC Ballistic Silvertip retains more than twice the energy of the low BC round nose, drops 4 inches less and drifts 12.5 inches less! Lapua Ballistics always offers the latest, Doppler proven Lapua cartridge and bullet data. To appreciate what BC can do for performance, let’s compare an old 150-grain round-nose .308 bullet from the early 20th century to Winchesters 150-grain Ballistic Silvertip of today. (V0) still come into play, and of course so does the Certainly it will at 300 yards, and beyond that it starts to become truly significant. Let’s run some numbers and see what happens. were measured, from which V0 was subsequently He’s roamed round the world in pursuit of big game and small game species alike. At current, the Lapua Ballistics App is available in no less than eight languages: English, German, Finnish, Norwegian, Polish, French, Spanish and Afrikaans, for Android and iOS mobiles, free of charge. High BC bullets look like speed waiting to happen: long, slim, pointy with sloping, tapered boat tails. To calculate the ballistic coefficient requires two velocities. BC takes into account bullet weight, diameter and shape or form. Performance The .308 is a highly … The Scenar is an open tip match bullet with a boat tail design, perfect for competetive shooting in a multitude of events. length and the wear of the specific barrel. The 150-grain Power Point load in 300 Winchester Magnum takes off at 3,290 fps. But physics is physics. Internet it is possible to find articles that describe differences of up to 25% using the same series of ammunition, first V5 and With the right BC you can make a light bullet hit with twice the kinetic energy of a bullet twice its weight because doubling a projectile’s velocity quadruples its energy. Ballistic Coefficient (B.C.) This same efficiency phenomenon explains how some relatively small, light cartridges can outperform some significantly larger, more powerful rounds at extreme range. The values specified by S&B correspond very well with reality, because That’s hardly hyper-velocity. Let’s run these through a ballistic calculator and see what happens. Since its adoption as a hunting cartridge, the .308 Winchester has become a best seller worldwide. Lots of great options. Sight-in-POI, Coriolis, Max Range and Cant Angle calculation, Compare up to 3 Lapua cartridge/bullet performances to each other. It’s the first mobile ballistics app utilizing the 6DOF calculation model, which makes it the most accurate ballistics app on the market. Those are huge, game missing distances. That old round nose probably had a BC rating of about .186. You can adjust your cookie setting by clicking the button below. These are the ballistics of Winchester’s 190-grain AccuBond Long Range load zeroed at 200 yards and kicked from the muzzle at 2,875 fps in the same 10 mph crosswind. Ron Spomer has been hunting, shooting, and writing about it since 1976. A distance of one hundred metres was The initial velocity. It always offers the latest, Doppler proven Lapua cartridge and bullet data. Inside of 100 yards, don’t worry about it. Please begin by reading the Lapua Ballistics App Guide. If you need to know anything and everything about hunting and ballistics, Ron is your man. The B.C. other series and the uniformity of the results was monitored. Compare up to 4 Winchester products and see how they compare. Lapua Ballistics app is a free of charge ballistics calculator for shooters. Commonly used nowadays is the ballistic coefficient (BC or G) according to Karpov (i.e. With Lapua Ballistics, you can calculate trajectories, range, bullet drop, turret adjustments and more to help take that perfect shot. His articles and photos have been published widely in magazines, newspapers, books, and websites. The ballistic coefficient for one hundred metres is calculated BC might sound like a bunch of hooey, but it’s really at the heart of bullet performance. With the right BC you can make a light bullet hit with twice the kinetic energy of a bullet twice its weight … altitude, the weight tolerance of the bullet and its initial velocity BC is a numeric designation for a projectile’s ability to resist air drag. The higher the weight, narrower the diameter and sleeker the shape, the higher the BC. Both are zeroed at 200 yards and fired in a 10 mph crosswind. Since the shooting was not performed simultaneously, firing was repeated with Using B.C. The Winchester Ballistic Calculator allows you to select your Winchester product and view the real trajectory from that product. To calculate the ballistic coefficient requires two velocities. Even after correcting for the atmospheric conditions and the When you create a profile in the Lapua Ballistic app, you agree that you have read our Disclaimer and Privacy Policy and understand its regulations, and give consent to the handling of your personal information as we explain in the Privacy Policy. This is when you want to combine accuracy and terminal performance (expansion) with sleek shape. Choose your bullets based on things like accuracy and terminal performance. can redeem itself with a heavier, higher BC bullet, as this next trajectory chart shows. Please also read our Disclaimer and Privacy Policy. If you have technical issues or bugs to report, kindly contact the app developer Rightspot. Fortunately, Winchester combines all of these characteristics in its wide variety of bullets for most of the 67 different cartridges it loads. The initial … Maybe this is why Winchester no longer loads round nose bullets in 308 Winchester, 30-06 Springfield, 300 WSM, etc. trajectory at the distance x from the muzzle, the Vx