The early Lyman hand loading manuals always showed showed pictures of chamfering straight-walled handgun cases as a necessary step in the hand loading process. However, after many years of not doing so, and as many others have testified here, chamfering is both not necessary and only serves to thin the mouth of the cases where cracks usually start. The flaring step alone, provides all the angle for inserting bullets that is needed.
Sometimes you get what you pay for, sometimes you only pay more for what you get.
Three shots are not a "group"...they are a "few".
If the Bible is the literal, infallible, unerring word of God...where are all those witches I am supposed to kill? (Exodus 22:18)