by Shooting Illustrated Staff posted on December 23, 2011 Ammunition, Videos Support NRA Shooting Illustrated DONATE ** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. ** In this article .223 Rem., Hornady Related Stories Dueling Zeros First Look: Hornady Frontier Cartridge Ammo First Look: Hornady Critical Defense Rifle Ammo Review: Hornady Frontier Ammunition Accurate AR Fodder Most Popular 10mm vs. .40 S&W: Similarities, Differences and Uses First Shots: Springfield Armory Hellcat OSP .380 First Look: Wilson Combat Division 77 Project 1 Ghost Pistol Marines Ditch 100-Year-Old Marksmanship Standards Top 5 'Budget-Priced' .50 BMG Rifles What I Didn’t Learn In Special Forces