What is meant by ballistic coefficient?

Ballistic Coefficients are measures of objects’ abilities to overcome air resistance mid-flight. Typically, the higher the number, the lower the drag of the projectile (low negative acceleration), and the better the bullet will cut through the air.

What is a good ballistics 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. The higher the number, the less drag the projectile will experience.

What is ballistic coefficient in ammo?

Ballistic Coefficient (BC) is a measure of external ballistic performance for bullets. The higher a bullets BC is, the less drop, and wind deflection it will have at all ranges for a given muzzle velocity and environment. BC is a number that can be used as an input for ballistic solvers to predict trajectories.

What Round has the highest ballistic coefficient?

With the highest BC bullets, the 26 Nosler remains supersonic beyond 1,750 yards.

What is the difference between G1 and G7 ballistic coefficient?

G7 Ballistic Coefficients — Which Is Right for You? G1 and G7 refer both refer to aerodynamic drag models based on particular “standard projectile” shapes. The G1 shape looks like a flat-based bullet. The G7 shape is quite different, and better approximates the geometry of a modern long-range bullet.

What is the ballistic coefficient of a 300 win mag?

The ballistic performances based off five grain types for velocity are 3,260 ft/s (165 gr), 3,146 ft/s (180 gr), 3,083 ft/s (190 gr), 3,029 ft/s (200 gr), and 2,850 ft/s (220 gr). Like other . 300 caliber in its class the . 300 Win Mag was popular almost immediately after it was introduced on the commercial market.

Should I use G1 or G7?

The simple answer to that is the G1 value normally works better for shorter flat-based bullets, while the G7 value should work better for longer, boat-tailed bullets.

What is the ballistic coefficient of a 308 150 grain?

308 Ballistics Chart