I happen to be on the lookout for new 22 Hornet brass for rather some time now. I found Prvi Partizan at Graf and Sons. I have use this brands product in past times. I found this could be averted, both by lessening velocity or using the Hornady 25 grainers. https://codyogwlb.designertoblog.com/57994139/17-hornet-brass-in-stock-options