======Black Powder Calculator======
{{ en:media::bpcalculator.png}}

Internal ballistic simulation calculations with black powder are unknown / nonexistent, therefore only rough estimates can be made. The black powder calculator provides the functions for estimating the muzzle velocity.

The equations for estimation are a further development of the calculation bases presented by Don Miller in the magazine "Black Powder Cartridge News" #76 (2011, pp. 27-30). The GRT further development of the respective equations includes an adjustment of the factors on the basis of own measurements, including additional bullet variants and black powder varieties.

  * **Formula**\\ Here you select the equation to be used.

  * **Powder type**\\ Here you select the used black powder.

  * **Barrel length**\\ Enter the length of the barrel in inches here.

  * **Projectile weight**\\ Enter the bullet weight in grain here.

  * **Projectile type**\\ Select the projectile type used here. For example, it is also permissible to set a minié bullet or a round bullet for a black powder cartridge.

  * **Powder charge**\\ Enter your powder charge in grain here.


The calculation takes place automatically after changing a parameter.