Shootingworld would like to extend a huge thanks to  "Gator" at Zvis.com for providing the calculators below.

Muzzle Energy Calculator/Graph Builder

- Calculator that builds a graph by calculated bullet muzzle energy using the bullet mass and the velocity. You also can enter sevral bullet masses and draw the comparison graphs, just in case if you want to visualize different loads this way ;). After using it for some time & several responese I've reconsidered original design & now the calculator supports both English & Metric UOM systems & can convert vaules bewteen them

Power Factor Calculator/Graph Builder

- Very similar to the previous one, but the formulas used are different. Gives a different picture for the same rounds. Many people prefer this one. For this one special thanks goes to Charles Winters, for the idea & the detailed info provided & to Scott Rutter without whom the metric system calculation wouldn't be available for a long time I guess :)
 

Recoil Energy, Impulse & Velocity Calculator

- Calculate Recoil energy, impulse & gun free velocity by the bullet, gun & powder charge masses & muzle velocity. Gunpowder type (Blackpwoder ro smokeless) also accounted, Both UOM systems: English & Metric are supported, including value conversions. Special thanks goes to Scott Rutter for all his help :).