I started shooting iron sight when I was shooting Highpower. I have to have them on anything I buy from a 20" Hbar, to a M4 type Carbine. I know I hit a man sized target out to 600 yards with irons pretty easily.
An enlightened zeal for the energy and efficiency of government will be stigmatized as the offspring of a temper fond of despotic power and hostile to the principles of liberty.
Alexander Hamilton, author of Federalist No. 1. 10/27/1787