Special Forces PSR Sniper Rifle | How it works | Tactical Rifleman
This guide details the process of converting the Remington PSR/MSR rifle between its supported calibers (.308 Winchester, .300 Win Mag, .338 Lapua Magnum). The conversion involves swapping the barrel, bolt face, and potentially a magazine well insert for .308. Instruction is provided by Karl Erickson, a retired US Special Forces operator, highlighting the rifle's modularity for various mission requirements and training scenarios.








