alcesgigas
Well-Known Member
First REMOVE THE FIRING PIN ON YOUR BOLT because you'll need to cycle live rounds. Using an accurate micrometer measure the brass on an unfired round at the top of the neck. Then do the same to one of your already-determined-unchamberables. Compare.
Do you use stainless steel pins and tumble to renew your cases? If so you may be "collaring" or "donuting" your brass case mouths. Be sure to chamfer inside and outside thoroughly.
Do you use stainless steel pins and tumble to renew your cases? If so you may be "collaring" or "donuting" your brass case mouths. Be sure to chamfer inside and outside thoroughly.