Differences Between Cock on Open versus Cock on Close Actions | MidwayUSA Gunsmithing
This video, presented by Larry Potterfield, founder of MidwayUSA, clearly explains the mechanical differences between 'cock on open' and 'cock on close' bolt action systems. He demonstrates how the Mauser 98 utilizes 'cock on open,' where the spring is compressed during bolt lift, while the Mauser 96 uses 'cock on close,' compressing the spring during the bolt's forward and downward closing motion. Understanding this distinction is key to appreciating the operational feel of different bolt-action rifles.









