CCI400 primers are too soft for the 17 Hornet. Use a harder primer. Or you may have a headspace problem; oversizing the brass which allows the primer to back out and leak.
Type: Posts; User: rupert
CCI400 primers are too soft for the 17 Hornet. Use a harder primer. Or you may have a headspace problem; oversizing the brass which allows the primer to back out and leak.