After inside and outside chamferin' the mouth of the case was danged near as sharp as my knife. Bein' careful to guide the flatbase bullet into the mouth of this cookie cutter usually resulted in blood at least once a reloading session. I got tired of it and had an old 722 made into a .221. A bit better ballistics, just a little bit more noise, cases that lasted forever, and normal finger printsl :-D No offense taken. :wink: