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Short answer, No! With the proper training and practice, the 1911 is a great option for self-defense, including the lightweight Ruger SR1911 Commander-Style in 9mm.
What gun do you or would you carry for defense against bears, lions, wolves? Have you considered a 10mm? Ryan Gresham demonstrates with Springfield's XD(m) in 10mm.
Ryan Gresham demonstrates the effectiveness of a short-barrel revolver in a self-defense situation at 5 feet, 10 feet, and 15 feet.
Kevin "KJ" Jarnagin demonstrates a barricade drill and discusses how he outfitted his Sig M400 TREAD with accessories.