Caleb Downing 07.05.20 Dave Propri SDI is really worth the time and worth the investment. I don’t know where you’d get this caliber of education and knowledge in the package you can get it in at SDI. RELATED STORIES Student Life So You Want To Be A Firearms Journalist? read more Firearms Tech CZ 600 Trail Bolt Action Rifle read more Firearms Tech Caliber Comparison: 223 vs 7.62×39 read more