Bob Keller is a retired Master Sergeant with over 20 years of experience in U.S. Army special operations. He has served in various elite units, including the 1st Ranger Battalion, 20th Special Forces Group, and U.S. Army Special Mission Unit. He has over 1,000 real-world combat experiences, making him highly sought after for his expertise. Bob is now the CEO and founder of Gamut Resolutions, where he specializes in teaching pistol and carbine courses. He teaches only what is proven to work and has a focus on saving lives by teaching target discrimination, sound tactical judgment, and precision shooting.

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