The SG number that is best is between 1.5 and 1.6. A bullet with a SG between 1.5 and 1.6 ensures adequate stability and maximizes the Ballistic Coefficient (BC) of the bullet. Having an SG between 1.5 and 1.6 also allows for some margin of error. The Miller formula used to predict SG is accurate within +/- 10%, so having 0.5-0.6 margin of error ensures you will get the most optimal stability out of your bullet. An SG greater than 1.6 may result in bullet failures due to excessive friction on the bullet’s jacket.
- What is the Berger Twist Rate Stability Calculator?
- How do you use a twist rate stability Calculator?
- Why would you use a twist rate calculator?
- How does the Berger twist rate calculator work?
- What is the Miller twist rate formula?
- Why is the Miller twist rule better than the Greenhill rifling formula?
- What does SG mean?
- What SG number is best?
- What SG do I want for my rifle/barrel?
- Why doesn’t the Miller twist rate formula work with flat based bullets?
- What SG do I need to stabilize a bullet?
- Why do I want an SG of 1.5 or higher?
- What does rifle twist rate mean?
- Why does barrel twist rate matter?
- What is my optimal barrel twist rate?
- What is the best barrel twist rate?
- Why is G7 BC better than G1 BC?
- What is the difference between G1 BC and G7 BC?