by Shooting Illustrated Staff posted on October 31, 2010 Guns Support NRA Shooting Illustrated DONATE STI Tactical 4.15 In this article .45 ACP, self-defense, semi-auto handguns, STI Related Stories STI Sentinel Premier Gallery Colt New Agent Gallery Detonics Combat Master Evolution Gallery Kimber Custon Crimson Carry II Gallery Regent .45 ACP 1911 Gallery Most Popular Tech Wisdom: .300 Ka-Boom Marines Ditch 100-Year-Old Marksmanship Standards Affordable Firepower: Five Budget-Friendly AR-15s Review: Springfield Armory 1911 TRP 4.25-inch CC 10 Budget-Priced .22 Rifles Under $200 Getting Serious: Stepping Up Your Marksmanship Skills