CMP IDPA Target, 2/3 Size The 2/3 Size IDPA target is made from 3/8" thick AR500 hardened steel for extreme long life and excellent impact resistance Overalldimensions 20 h x 11 w The target is made from 3/8" thick AR500 steel for use with pistol or rifle caliber 15 yards minimum for handgun, 100 yards minimum for rifle use