|
In 12-ga, the standard choke constrictions are in the neighborhood of:
0.000" Cylinder (no choke)
0.005" Skeet
0.010" Improved Cylinder
0.015" Light Modified
0.020" Modified
0.025" Improved Modified
0.030" Light Full
0.035" Full
0.040" Extra Full
Typically, extended chokes are marketed to the sporting clays shooters who find them easier/quicker to change. Some claim high-grade extended screw-ins, with their longer choke length, provide more consistent patterns.
|