Marlin Model 60SB semi-automatic 22LR rifle comprehensive review. Manufactured between 1960 and 2020, the Marlin Model 60 was produced is numerous variations with the Model 60SB being made of stainless steel. The three major features of the Marlin Model 60 include its Micro-Groove Rifling that carves 16 grooves in the bore for improved accuracy, a grooved receiver for scope mount and its “last shot” bolt hold-open system. The Marlin Model 60 is an affordable, no frills, rugged, reliable, tube-fed, 22LR-only rifle equipped with iron sites. Scope options and attachment are discussed. Includes range activity and a demonstration of disassembly and reassembly. Also includes quick steps for replacing the recoil buffer.