What .308 168 grain bullet has the highest bc? - Long Range Hunting Forum 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. Ballistic Coefficient is a bit of a new word when we look at the history of physics. 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. He currently teaches concealed carry courses and enjoys spending time in Floridas Nature Coast. For big-game hunters, the Nosler AccuBond might offer the best balance of terminal performanceexpansion and penetrationthat can be found. This is because of drag caused by wind resistance. Ballistic Coefficient (BC) values can, and usually do change in value with changes in velocity. . | Due to the sensitivity of BCs to velocity, it can highly skew the comparison. G1 (flat base with two caliber (blunt) nose ogive), G5 (short 7.5 boat-tail, 6.19 calibers long tangent ogive), G6 (flat base, six calibers long secant ogive), G7 (long 7.5 boat-tail, ten calibers tangent ogive), G8 (flat base, ten calibers long secant ogive). This is because the value for the shape of the bullet is determined by how close its shape is to the drag model. Available Calibers: 6mm, 6.5mm, .277, 7mm, and .308. The more efficient a bullet is, the better it will maintain its speed. Ballistic Coefficient & Bullet Math : Long-Range Shooting Science The bullet manufacturers that choose to advertise BCs taken at high speed only, may appear to compare better to Bergers, but the apparent advantage is misleading, and will not result in accurate long range predictions. However, you may visit "Cookie Settings" to provide a controlled consent. Savage Impulse Big Game Straight-Pull Bolt-Action Rifle: Full Review, How Rifle-Shot Recoil Affects Scopes, Rings and Bases, Ruger No. Let's compare the practical ballistics of a traditional flatbase bullet with a modern high-ballistic coefficient bullet when both are zeroed at 200 yards and fired in standard sea-level conditions. Mach 1 = 1116.48 fps @ ICAO Standard Atmosphere). However, the science and scientists that got us to this point goes back all the way to the 16th century. Ballistic Effectiveness: Which Handgun Caliber Wins? At the very bottom, you see the BC listed. But a higher ballistic coefficient doesnt necessarily mean it is a better bullet. All RifleShooter subscribers now have digital access to their magazine content. BC might sound like a bunch of hooey, but it's really at the heart of bullet performance. 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. Analytical cookies are used to understand how visitors interact with the website. 50 bmg ballistic coefficient - 3wge.com Did this help sort out just what ballistic coefficient is? A bullets efficiency is measured by its ballistic coefficient (BC).
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