Selecting Barrel Twist Rates
Our caliber and twist rate chart (see below) indicates the twist rate recommended for use with normally manufactured ammunition. Today's handloader, however, has access to a wide range of heavier and longer bullets; a faster rate of twist may be required to stabilize these bullets. For example, a 12" twistbarrel will stabilize a heavier or longer bullet than will a 14" twistbarrel. Basically, the twist rate you choose should be sufficient to stabilize the longest and heaviest bullets you plan to use.
Special Barrel Configurations
PAC-NOR has the capability to make barrels with special requirements such as twist, rifling configuration, and bore and groove dimensions. We have made barrels for various ballistic labs, and arms and ammunition manufacturers. Since most of the tooling must be specially made, this type of work is done only on a written quote basis. Please supply us with drawings for your requirements by mail or fax so that we may accurately process your quote.
Caliber and Twist Rate Chart
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