When it (fins in vent lines), is caused by too much Tin in the alloy, the bullets are filled out beautifully, and the bullets themselves are perfect...it just is a waste of tin though. And Tin is getting hard to find and more expensive all the time.
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)