“Most Redding shell holders will fit, but may range from tight to a sloppy fit (depends on age)”
My best and most favorite shell holders are old, my favorite because they fit, fit has its advantage as opposed loose.
My favorite case is a case that has been fired in a trashy Ol’ chamber. My favorite shell holder is a trashy old loose shell holder with a deck height of .125 thousandths.
By design (most) shell holders are loose and sloppy