Every now and again work has me delve into a subject where the data is limited. In this instance to look at barrel life and the influence of rifling form when firing what is essentially a solid projectile. As expected muzzle velocities are required to be quite high and the working pressures are right up there. Hence the post is in the ELR section where it is a regular occurrence to drive solids along quickly with healthy pressure levels
What I am looking for is experience using polygonal profile rifling forms in this discipline. How do they tolerate variations in projectile weights/lengths? How sensitive are they to projectile alignment? (neck turn, bullet jump) and any other incidental observations.
Thank you in advance.
Bill Alexander
What I am looking for is experience using polygonal profile rifling forms in this discipline. How do they tolerate variations in projectile weights/lengths? How sensitive are they to projectile alignment? (neck turn, bullet jump) and any other incidental observations.
Thank you in advance.
Bill Alexander