I sighted in the Ruger Mini-14 using iron sights while shooting from a stable metal table and using an improvised bench rest. It took about 20 rounds of ammunition and several adjustments to get the rifle shooting a 2- to 4-inch group at 50 yards while engaging a 2-inch Shoot N See round "sticky" target. The best groups noted were a tad under two inches using Federal 110-grain .223 FMJ ammunition.
I also fired the Ruger Mini-14 test rifle from the 50-yard line from a standing unsupported position using iron sights and no accessories. During this test, I emptied a 20-round magazine about as fast as I could pull the trigger at a TQ19 Police Firearms Qualification Target.
Despite the fact that the top accessory rail has a U-shaped slot running down the middle it did not appear to be cut deep enough to work well with my eyes. I compensated for this by concentrating more on the front sight. The results were quite satisfactory, but I still don't like the way the accessory rail blocks the front sight on this rifle.
Like many rifles with accessory rails, the Mini-14 Tactical was made for optics. So I sighted in the test rifle using an Aimpoint Comp M4 red dot optic. I also added a CAA brand folding forward vertical grip.
All it took was a few adjustments and a small amount of ammunition and the Mini-14 was nailing targets with combat precision. The Aimpoint optic made it possible for me to bang away at targets at a much faster rate of fire than when I used just the iron sights.