Hmmmm.....read years ago that the reason the Shell manufacturers got away from the roll crimp and went to a star crimp was because the Cardboard on top would/could cause distorted patterns. Maybe not these days.......
You keep popping In with this comment, that might have been the case years ago before Tungsten shot.
I can virtually guarantee That is Not the case with these particular shells.
Hal’s loads have been developed for many years and many of have shot them for years, there is nothing comparable to the pattern density. If You are insinuating shooting blown patterns I’d hate to see how tight they would be otherwise
If you don’t know, why not ask the question instead of trying to prove everyone wrong?