Mark Serbu demonstrates a home-shop button rifling process using Chinese and Ukrainian rifling buttons on 4140 and 12L14 steel barrel blanks. The video details the use of a hydraulic press and Moly grease, concluding with a comparison of the 4-groove rifling from the Chinese button and 6-groove from the Ukrainian button. Serbu provides expert insights into material selection and the practicalities of DIY barrel making.
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