Thread Pitch - Anyone know????

[jmoore]

Oh, yeah! Done similar once or twice. Its threading non-standard I.D. threads where the fun starts. Can't use thread mic's, so its either fit by trial (w/o removing the new part from the lathe!) or fab'ing some test plugs beforehand and hoping theory matdhes reality.

Nice rifles, by the way. More accurate than your average ak/sks (plenty more than a mini30), more ergonomic, and lighter to boot! Just need a "tacticool" optics mount here in the US. Ciphered on making one but haven't taken the plunge.