Hawken twist rate Twist rate depends on who manufactured the barrel bore. Contact customer service for more details. Topics: Products_KitsTags: Hawken|Twist Rate|BarrelLast verified: 2026-08-10Also called: j.k. hawken rifle, hawken, jk hawken, j.k. hawken, half stock hawken, plains rifle, twist rate, twist, rifling twist, rate of twist, barrel