Shotgun Pattern
Density Calculator

This calculator estimates how many pellets will be in a 30" circle at various ranges depending on the size of the shot, the size of the load, and the constriction of the choke. This is valuable to understand the effects of shotgun patterning with various choke constrictions and the density of shot patterns for various loads.

To calculate the approximate number of pellets in a 30" circle at various ranges select the appropriate shot size, load size, and choke constriction from the drop down lists, then press the Calculate Pattern Density button.