I recently purchased a brand new entry model and 100 rounds of 335 grain rainer hollow points . today I decided to sight it in and managed to get a 2.5 inch group at 50 yds with very little support just resting my arms on the table . but when I collected my brass I discovered some alarming items . punctured primers scratched brass and one case had ruptured . is there or has there been an issue with the factory ammo ?