The below Berger Twist Rate Stability Calculator allows you to identify what the optimal twist rate and the marginal twist rate is for any given bullet given your shooting conditions. This tool allows you to figure out which bullets will stabilize out of your rifle given your rifle’s twist rate. This tool also helps you to identify which barrel twist rate you want to buy if you already know which bullet you plan to shoot.
For additional information, we recommend you read our guide on how to use the Berger Twist Rate Calculator.
Important Note: The Miller Twist Rate Formula isn’t accurate with flat based bullets, so we recommend you view our flat based bullet twist rate chart to identify what the minimum twist rate is for all of our flat based bullets.