Thread: Split case

Have seen this a lot now, mostly its the galvanic corrosion between the dissimilar metals in the brass and projectile " welding " the projectile in tighter than it should be

Upon firing the brass releases the projectile with extra resistance and vibration which destroys the brass

Thanks for that, Ive measured neck thickness between these and other used rounds and (although new to reloading) had decided it wasnt undersized neck material and also the fact that 20 years ago they were fine led me to think it was corrosion of some sort. Again thanks for your response, at least I know how to proceed now