Hammerli FK-31: Diopter Competition Rifles for the Haganah
This guide details the adjustment of the diopter sights on the Hammerli FK-31, a rare competition rifle used by early Israeli forces. Expert instruction from Ian McCollum covers front sight insert selection and rear sight windage, elevation, and aperture adjustments for optimal precision. The video emphasizes the historical significance and unique modifications of this straight-pull bolt-action rifle chambered in 7.5x55mm Swiss.











