Analysis of twist-rate effects in a progressive-rifling barrel using finite element method.

Key Points

• This research aims to analyze the effects of twist-rate on the performance and stability of progressive-rifling barrels using a finite element approach.
• Applied finite element method to simulate twist-rate effects on barrels.
• Evaluated gyroscopic stability and engraving stresses under high-pressure conditions.
• Recommended twist-rate of 7°-8° for optimal gyroscopic stability.
• Framework demonstrates the potential to reduce excessive engraving stresses during firing.