Yesterday I had my first primer burst in many years, completely destroyed with no shards found. I load and shoot hundreds of HV rifle rounds a year.
It occurred in a .270 Win load primed with a Federal in 1X fired then trimmed brass, a load I've used many times. I fired 9 other rounds of the same load without flattened primers or any other pressure signs. The only flaw I could find in unloaded brass was a few had slightly "high" primers not fully seated in the pocket. Can this cause primer failure?
