What is meant by the ballistic coefficient? BC might sound like a bunch of hooey, but it’s really at the heart of bullet performance. Pure ballistics data is to be found in most manuals, such as the Norma reloading manual. Another benefit is reliable feeding in magazine fed firearms. The wind deflection in minutes is almost exactly proportional to the distance. 202. 22 WMR Ballistics Coefficient (BC): The ballistic coefficient of a bullet is the drag factor of a bullet. Environmental Status. The bullets drag coefficient as well as it’s G1 and G7 form factors and BC’s are tabulated in 500 fps increments from 3000 down to 1500 fps. Ballistic Coefficient values at Mach 1.75 (1954 fps @ ICAO Standard Atmosphere), should be used when calculating trajectories for shooting beyond 600 yds. shows a .22lr at 1260 fps having a BC of .1340. Ballistic Coefficient is essentially a measure of air drag. CCI High Velocity Clean-22 Ammunition Pink .22LR 40gr Poly Coated LRN 1235 fps 400/ct Compare up to 4 Winchester products and see how they compare. Compare up to 4 Winchester products and see how they compare. In ballistics, the ballistic coefficient (BC) of a body is a measure of its ability to overcome air resistance in flight. Ballistic coefficient is a measurement of a bullet’s ability to travel through the air. The ballistic coefficient (BC) of a body is a measure of its ability to overcome air resistance in flight. Mathematically, it is the ratio of a bullet's sectional density to its coefficient of form. I'm shooting at 973 from the muzzle. Ballistic coefficients are calculated by Quick Target Unlimited Lapua Edition from V0 to V75 The Spitzer is a very popular and aerodynamic bullet shape. Ballistic Coefficient values at Mach 2.0 and 1.75 offer comparisons to other manufacturers that publish multiple BC’s based on velocity. Maximum 60°C; Minimum -40°C. Bullet … The major advantage of adding a tip to the bullet is the reduction of drag, producing a more favorable ballistic coefficient. Air Arms Field Diabolo - 0.177 - 0.547grams (8.44 grains) (BC 0.018) Beeman Bearcub - 0.177 - 0.524grams (8.09 grains) (BC 0.011) Beeman Crow Magnum - 0.177 - 0.570grams (8.80 grains) (BC 0.013) Specialists in .22LR rimfire, full-bore and competition air pellets for rifle and pistol shooters. It might not matter if you’re shooting at 50 yards, shooting pistols, or firing birdshot but it’s crucial if you want to harvest game with a long-range rifle. The Winchester Ballistic Calculator allows you to select your Winchester product and view the real trajectory from that product. NOTE: Caliber is given in decimal fractions of an inch. It's basically a measure of how streamlined the bullet is. (statement of intent) Acknowledgements. @doug-wall. CCI .22lr Ballistic Coefficients Log in to see fewer ads Hey guys, I was searching for the ballistics coefficients for the CCI SV ammo that I use to plug into Shooter on my iPhone and couldn't find any that I believed were accurate. Understanding Bullet BC (Ballistic Coefficient) We hunters love to argue endlessly about calibers, cartridges, bullet weights, and muzzle velocities, but we should be equally concerned with BCs — Ballistic Coefficients. To give you some numbers, the BCs of most.177 pellets are in the 0.01 – 0.02 range whereas most 22lr bullets are in the 0.10 range (ten times better) and long-range bullets generally range from 0.5 all the way up to 1.0 with the.50 BMG! The higher the number, the less drag the projectile will experience. I do not know the ballistic coefficient of the Hades in .25 or .22 but I know I'm on my Second .25 Seneca Eagle claw ( first was a dud cause the sear quit engaging but it shot exact JSB 25.39s great and then when I got the new replacement Eagle claw it wouldn't shoot those exacts or Jumbo's or any of 20 different pellets and probably a dozen different style .25 slugs as well. Ballistic coefficients are calculated by Quick Target Unlimited Lapua Edition from V0 to V75 BC G1 for all Rimfire.22 LR bullets = 0.172 In the chart below, the .22LR round with a BC of .13 and a muzzle velocity of 1070 fps covers 100 yards in 304 milliseconds. Spitzer. From: Chrono Connect and also Hardair Magazine | Ballistic Coefficients 0.177. BC coefficients can be found in the lower left corner. Firearm Setup. Ballistic Coefficient (BC) is basically a measure of how streamlined a bullet is; that is, how well it cuts through the air. Compiled by Adam S. Gubar. TMK helped to fill a gap in the 22 caliber Match bullet offering. Zero Range (yd) Must be a number greater than 0. A pellets ballistic coefficient is very important for determining a pellets trajectory, especially over a long distance. There’s a total of 81 airgun pellet Ballistic Coefficients in .177 caliber, .22 cal, .25 and .30 caliber. Temperature (°F) Maximum 140°F; Minimum -40°F. Almost all rounds have a ballistic coefficient of less than 1.0, but large rounds like the 50 BMG can exceed this normal BC. G1 Ballistic Coefficient Must be between 0.001 and 1.0. This coefficient is a relative value compared to a … A bullet with a higher ballistic coefficient will hold its velocity longer than a lighter or less streamlined bullet with the same muzzle velocity. The constant drag coefficient of the .22LR bullet, once it has passed 150 yards, has another interesting result. The long success story of Midas .22 lr ammo brought a lot of excellent results, which have been used as the basis for the new generation cartridges. But a higher ballistic coefficient doesn’t necessarily mean it is a better bullet. Always accurate, this is the .22 caliber ammunition of choice for many world class rimfire shooters. So for a 20mph cross wind from 3 or 9 o’clock, the wind deflections at 100, 200, 300, 400 and 500 yards are near enough 6, 12, 18, 24 and 30 minutes. Important: Since there are thousands of bullet shapes the Ballistic Coefficient calculations made below are not 100% accurate, if you are shooting out past 400-500+ yards your going to need to get the exact BC from the bullet's manufacturer. A Positive Gain Copper-22 22 LR Important Safety Information WARNING: Discharging firearms in poorly ventilated areas, cleaning firearms, or handling ammunition may result in exposure to lead and other substances known to the State of California to cause birth defects, reproductive harm, and other serious physical injury. Today, Hard Air Magazine has published the most comprehensive, comparable, independent database of airgun pellet Ballistic Coefficients. We are working on a massive list, but this list won't be ready for a few weeks or months. Since 1828, ELEY has been helping club, world and Olympic shooting athletes realise their potential to win using its world-renowned .22LR ammunition. To revive an old thread - I noticed the Hades wasn't matching up with the Strelok reticle using the assumed BC of 0.031 for the Hades in my Pulsar. 22 LR: Bullet Weight: 40: Package Quantity: 50: Bullet Style: Lead Round Nose: Muzzle Velocity: 1070: Ballistic Coefficient.120: Usage: Target Shooting Lapua’s Center-X is a versatile.22 LR cartridge known for its superb performance in all kinds of smallbore competitions. The Apparent Ballistic Coefficient=Temperature correction factor x Barometric pressure correction factor x Present ballistic coefficient=.942 x 1.406 x .338=.448. Sight Height (in) Must be a number greater than 0. The introduction of the 60 Gr. It is inversely proportional to the negative acceleration: a high number indicates a low negative acceleration—the drag on the body is small in proportion to its mass. So, I did my own ballistic coefficient calculation using my Caldwell Chronograph for velocities at … The SK Ballistic table includes all available ballistic data for SK rimfire ammo. Ballistic coefficient is typically measured with a 3 digit expression. We'd like to personally and specifically thank Pat Childs at Fin & Feather in Iowa City, as he not only helped get most of our ammunition and other supplies, he was the brilliant gunsmith who worked with us to make this insane project much more practical.Without his help all of this would have been much more difficult and perhaps impossible. The Winchester Ballistic Calculator allows you to select your Winchester product and view the real trajectory from that product. BC can be expressed with the units kilogram per square meter (kg/m ) or mass pound per square inch (lbs/in ) (where 1 lbs/in corresponds to 703.069581 kg/m ). If the formula from wikipedia is close, then dividing the .22 BC by 3 (for the mass difference) gives 0.0467. Lead balls (and .22lr bullets) don't have very good ballistics coefficients. The number is in the form of a decimal. The Drag and Ballistic Coefficient data is a complete representation of the bullets flight characteristics over a range of velocities. The higher the number the lower the drag of the bullet. Taking 0.0467 x (.3/.4) for the change in Cd yields 0.0335. Winchester subsonic ballistic coefficient .22lr Winchester subsonic ballistic coefficient .22lr By belly47 , July 27, 2014 in Bullets, Cartridges and Reloading While a pellets ballistic coefficient can change slightly depending on a speed of the pellet, here are the general ballistic coefficient figures for several popular .22 caliber pellets.