Twist Rates: How well does your particular barrel stabilize heavy subsonic bullets? Include bullet specs, barrel length, and twist rate. (Gathering data) : r/Firearms
Ballistic Resources - Hornady Manufacturing, Inc
Ballistics Chart - Hornady
How To Find the Ideal Twist Rate for Your Rifle - Everyday Marksman
How To Find the Ideal Twist Rate for Your Rifle - Everyday Marksman