For 1/4” (6.3mm) I use .40 material at 170mm in length, with a 20-15mm taper. I increase material thickness with ammo size but keep the same cut length and taper.
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For 1/4” (6.3mm) I use .40 material at 170mm in length, with a 20-15mm taper. I increase material thickness with ammo size but keep the same cut length and taper.