The DC-1001 BC Calculator program helps you design tangential ogive (spitzer) bullets with flat, dish, cup, hollow, boattail, or rebated boattail bases, with or without jackets.

The program instantly calculates the BC (Ballistic Coefficient), Ingall's number (form factor), sectional density, minimum stable twist rate, bullet overall length, shank length, base length, and ogive length, as well as the average bullet density, given the basic parameters of caliber, weight, core and jacket weight (which self-correct to total bullet weight), material density, and tip width (meplat).

The bullet parameters can be calculated with various media density and at various velocities, going beyond the usual, incorrect assumption that the BC will remain the same regardless of speed. The program calculates drag based on both ogive and base shape (some BC programs ignore the base or handle it as a constant), allowing you to compare the same bullet design with boattail or rebated boattail base at different velocities (for example) and with different air densities. This lets you adjust the air density to compensate for changes caused by altitude, barometric pressure, temperature, and relative humidity.

You can save all the figures in a file by clicking a button, and print either the saved info as a report, or print the window just as it appears without saving any data. Default values for standard air density and standard velocity are restored with the click of a button, so that it is easy to return to the universally accepted comparision values.